DOI: 10.3897/phytokeys.270.169902

Authors: Alexander P. Sukhorukov, Sandra Knapp, Elena A. Glazkova, Dmitry S. Shilnikov, Maria Kushunina, Alexander N. Sennikov

Abstract: The alien Solanum species in European Russia and the North Caucasus have never been revised. Over the past three decades, several exotic species have been found in various parts of the area, but many of them were identified incorrectly or reported using outdated taxonomy. We detailed the distribution data for these species, verified and corrected published reports, and provided updated diagnostic characters and a new identification key. Here, we report and discuss the records and residence status of nine species: S. elaeagnifolium, S. emulans, S. heterodoxum, S. nitidibaccatum, S. rostratum, S. scabrum, S. sisymbriifolium, S. triflorum, and S. villosum. One additional species, S. nigrum, appears to be an archeophyte widely distributed in both regions, except the Arctic zone. Solanum villosum, previously treated as several segregate taxa (S. alatum, S. luteum, S. transcaucasicum, S. zelenetzkii), was first collected in the early 20th century in the North Caucasus, whereas its collections from European Russia are mostly from the late 20th century. Solanum rostratum is naturalized in the plains of the North Caucasus and the Lower Volga Region. It has also been found several times in the forest and forest-steppe zones, with one new record reported here. Solanum triflorum is naturalized and rapidly spreading in the Lower Volga and the eastern North Caucasus; it is recorded here as a new casual alien in Kazakhstan. Solanum nitidibaccatum is reported for the first time from several administrative units and is considered naturalized at least in Central Russia. The putative presence of its close relative, S. sarrachoides from South America, which is a naturalized alien in some parts of Europe, is also discussed. At present, the remaining species are considered casual aliens. Solanum scabrum has escaped from cultivation, whereas the other species have arrived with contaminated grain imported from North America.

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DOI: 10.3897/phytokeys.268.169893

Authors: Christopher T. Martine, Kym Brennan, Jason T. Cantley, Aiden T. Webb, Geoffrey Newton

Abstract: A new species of functionally dioecious bush tomato from the “Solanum dioicum + S. echinatum group” of Solanum subgenus Leptostemonum is described. Solanum nectarifolium Martine & Brennan, sp. nov., is a member of the taxonomically challenging Solanum dioicum W.Fitzg. species complex in Australia and differs from other species in the group by the presence of prominent and conspicuous extrafloral nectaries on the abaxial leaf surfaces, a tinge of purple on the new growth and young fruiting calyces, and curved prickles on young stems. Although fairly well represented in herbarium collections, this new taxon has historically been treated as a part of S. dioicum and more recently as a part of S. ossicruentum Martine & J.Cantley due to shared vegetative characters, particularly a silvery-blue aspect. Symon’s “Group three” or “Tanami form” of S. dioicum is thus now treated as two species: S. nectarifolium (with prominent nectaries, a deeply bifid stigma, and an exposed berry at maturity) and S. ossicruentum (lacking visible nectaries and possessing a slightly lobed and nearly linear stigma, plus a berry fully enclosed in the calyx at maturity). While extrafloral nectar production has been documented in Solanum, S. nectarifolium is the first known example in the genus with nectaries that are consistently visible to the naked eye. This new species brings the number of functionally dioecious (and morphologically androdioecious) Solanum species in Australia to 15. We also provide an updated distribution for S. ossicruentum and, in light of our findings, reassess the identity of specimens associated with the type series for S. dioicum.

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DOI: 10.3897/phytokeys.266.166870

Authors: Marco A. Cueva Manchego, Italo F. Treviño, Diego A. Sotomayor, María I. Villalba, Sandra Knapp

Abstract: A new species from the montane forests in central Peru belonging to the Pteroidea clade of Solanum is described and illustrated. Solanum stellaticalycinum M.A.Cueva, Treviño & D.Sotomayor, sp. nov. is known only from the Yanachaga-Chemillén National Park and adjacent areas (Prov. Oxapampa, Dept. Pasco, Peru). With simple leaves, it is morphologically similar to S. anceps Ruiz & Pav., a widespread species in South America, and to S. angustialatum Bitter and S. incurvum Ruiz & Pav., both known from the montane forests of northern and central Peru. Solanum stellaticalycinum is distinguished from all these by its purple pedicels and flowers with linear to narrowly triangular calyx lobes, a membranous corolla with lanceolate lobes and ovoid-conical, smooth or slightly rugose fruits. Here we discuss the taxonomic affinities, distribution and conservation status of this new species. We also include a key to all species of Pteroidea with complete distributions at the country level and department level distributions within Peru.

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DOI: 10.3897/phytokeys.265.152696

Authors: Denitsa Teofanova, Kalina Pachedjieva, Anita Tosheva, Bianka Marinova, Stefan Savov, Martin Savov, Tzvetelina Zagorcheva, Lyuben Zagorchev

Abstract: Cuscuta species (dodders) are parasitic plants that harm both native and cultivated flora, presenting significant ecological and economic challenges. This study employs random amplified polymorphic DNA (RAPD) markers to evaluate genetic variation among 70 specimens collected from various localities across Bulgaria. The findings reveal notable differences in RAPD profiles between species, indicating that RAPD markers are effective for species identification, particularly when reproductive organs are absent. While C. campestris exhibited a relatively uniform genetic profile across different populations, native species showed greater genetic heterogeneity, likely due to their development in diverse habitats. Geographical patterns were also observed in the genetic clustering of C. campestris, although seed dispersal mechanisms appeared to play a larger role in shaping genetic diversity than geographic distribution alone. This research highlights the potential of RAPD markers for improving species identification and for understanding the genetic dynamics of Cuscuta populations, which is crucial for managing their spread and minimizing their agricultural impact.

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DOI: 10.3897/phytokeys.255.140014

Authors: Jacob Bryant, Mariana Vazquez-Alonso, Eric J. Tepe

Abstract: Solanum tavinuuyuku, of the Sierra Madre del Sur ecoregion of South-Central Mexico, is a viny, node-rooting species of the Potato clade, in the subclade Solanum sect. Anarrhichomenum. Solanum tavinuuyuku is distinguished from its relatives by possessing long and narrow, lanceolate, ovate to falcate, 1–3-foliate leaves with (5–)7–10 secondary veins; large, persistent pseudo-stipules found at nearly every node on herbarium material; and white, violet-tinged corollas particularly pronounced in the floral bud. Solanum tavinuuyuku is functionally dioecious, producing functional, tricolporate pollen and non-functional, inaperturate pollen in short and long-styled flowers, respectively, joining its close relative S. appendiculatum as one of only two documented dioecious species in the entire Potato clade. Separation of S. tavinuuyuku from its closest ally, the simple-leaved S. ionidium, is based on morphometric and geographic evidence presented here.

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DOI: 10.3897/phytokeys.253.138216

Authors: Sandra Knapp, Yuri F. Gouvêa, Leandro L. Giacomin

Abstract: The Leptostemonum Clade, or the ‘spiny solanums’, represents half of the species diversity of the large cosmopolitan genus Solanum (Solanaceae). Brazil is a centre of both species and lineage diversity in ‘spiny solanums’ with a number of lineages occurring mostly only there. Here, we treat the Solanum hexandrum group, a monophyletic species group that is part of the larger and unresolved Erythrotrichum clade sensu lato. The six species treated here are all robust very prickly shrubs with amongst the largest and showiest flowers in Solanum and accrescent calyces in fruit that often completely cover the mature berry. All six species are endemic to the coastal Atlantic forests of south-eastern and north-eastern Brazil. We describe one new species, S. phrixothrix Gouvêa & S.Knapp, sp. nov., known only from two collections made 200 years apart. Many of the species in the group occur in very small populations around isolated gneissic/granitic inselbergs, a highly threatened habitat in the region. We provide complete nomenclatural details for all recognised species and their synonyms, complete descriptions, distributions including maps, illustrations, common names and uses and preliminary conservation assessments.

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DOI: 10.3897/phytokeys.245.121988

Authors: Sandra Knapp

Abstract: The genus Lycianthes (Dunal) Hassl. (Solanaceae) has in the past been treated as a section of the large genus Solanum L. but is more closely related to Capsicum L. Outside of the Americas, where the highest species diversity occurs, the genus is found in tropical and subtropical habitats from India to Japan and the Philippines, including the islands of Indonesia, New Guinea and the Solomons. The 19 species from Australia, New Guinea and the Pacific were treated in ‘PhytoKeys 209’. Here I treat the remaining 10 species occurring across Asia; including two native species, L. biflora (Lour.) Bitter and L. oliveriana (Lauterb. & K.Schum) Bitter, and one cultivated species, L. rantonnetii (Carrière) Bitter that were also included in the earlier work. The Asian species treated here occupy a wide range of forested and disturbed habitats and are diverse in habit, ranging from epiphytic vines to small or medium sized trees, shrubs or creeping herbs. Many of the species are weedy plants of highly disturbed habitats and are best characterised as “ochlospecies”, with complex polymorphic variation. Lycianthes rantonnetii, a species native to southern South America, is recorded as cultivated in India and Pakistan, but may be more widespread than collections indicate. The history of taxonomic treatments of Lycianthes in Asia is discussed, along with details of morphology found in all species. All species are treated in full, with complete morphological descriptions, including synonymy, lecto- or neotypifications, discussions of ecology and vernacular names, distribution maps and preliminary conservation assessments (for all except the cultivated L. rantonnetii). Searchable lists of all specimens examined are presented as Suppl. materials 1, 2.

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DOI: 10.3897/phytokeys.232.108474

Authors: Andrés Orejuela, Stacey D. Smith, Boris Villanueva, Rocío Deanna

Abstract: Iochroma orozcoae A.Orejuela & S.D.Sm., sp. nov. (Solanaceae) is described from the Andean forests of Cundinamarca in the eastern cordillera of Colombia. Iochroma orozcoae was first collected by the eminent Spanish priest and botanist José Celestino Mutis in the late part of the 18th century, but the specimens have lain unrecognised in herbaria for over 200 years. The species shares many features with its closest relative, Iochroma baumii S.D.Sm. & S.Leiva, but it differs from it in having small flowers with five corolla lobes and few inflorescences per branch, located near the shoot apex with 1 to 4 (–8) flowers, fruits that are greenish-yellow when ripe and its restricted geographic distribution. A description of I. orozcoae is provided, along with a detailed illustration, photographs of live plants, a comparison with closely-related species and a key to all Colombian species of Iochroma Benth. In closing, we emphasise the value of historical collections for the knowledge of biodiversity.

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DOI: 10.3897/phytokeys.231.100894

Authors: Sandra Knapp, Tiina Särkinen, Gloria E. Barboza

Abstract: The Morelloid clade, also known as the black nightshades or "Maurella" (Maurella), is one of the 10 major clades within the mega-diverse genus Solanum L. The clade is most diverse in the central to southern Andes, but species occur around the tropics and subtropics, some extending well into the temperate zone. Plants of the group vary from herbs to short-lived perennials to perennial shrubs that are distinctly woody at the base, they have small mostly white or purplish white flowers and small juicy berries. Due to the complex morphological variation and weedy nature of these plants, coupled with the large number of published synonyms (especially for European taxa), our understanding of species limits and diversity in the Morelloid clade has lagged behind that of other clades in Solanum. Here we provide the last in a three-part series of monographic treatments of the morelloid solanums (see PhytoKeys Vols. 106, 125), treating the 62 species occurring in South America. This region is by far the most diverse in the clade, both in terms of species number and morphological diversity. We provide complete synonymy, nomenclatural details, including lecto- and neotypifications where needed, common names and uses, morphological descriptions, illustrations to aid identification both in herbaria and in the field, and distribution maps for all native, non-cultivated species. We include a key to all species, a synoptic character list for the species treated here and links to synoptic online keys for all species of the Morelloid clade. Preliminary conservation assessments following IUCN guidelines are also provided for all native species.

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DOI: 10.3897/phytokeys.225.100646

Authors: Mao-Lin Zhang, Yi He, Quan-Ru Liu

Abstract: Argyreia subrotunda, a new species from Yunnan Province, China, is described and illustrated. The new species resembles A. fulvocymosa and A. wallichii, but differs from these in the flowers with an entire or shallowly lobed corolla, as well as smaller elliptic bracts, lax flat-topped cymes and shorter corolla tubes. An updated key to the species of Argyreia from Yunnan province is also provided.

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DOI: 10.3897/phytokeys.216.85972

Authors: Tanisha M. Williams, Jonathan Hayes, Angela J. McDonnell, Jason T. Cantley, Peter Jobson, Christopher T. Martine

Abstract: A new species of functionally dioecious bush tomato of Solanum subgenus Leptostemonum is described. Solanum scalarium Martine & T.M.Williams, sp. nov., is a member of the taxonomically challenging “Kimberley dioecious clade” in Australia and differs from other species in the group in its spreading decumbent habit and conspicuously prickly male floral rachis. The species is so far known from one site in Judbarra/Gregory National Park in the Northern Territory. Ex situ crosses and confirmation of inaperturate pollen grains produced in morphologically cosexual flowers indicate that these flowers are functionally female and the species is functionally dioecious. The scientific name reflects the ladder-like appearance of the inflorescence rachis armature of male individuals, the stone staircase that provides access to the type locality at the Escarpment Lookout Walk, and the importance of maintaining equitable and safe access to outdoor spaces. The common name Garrarnawun Bush Tomato is proposed in recognition of the lookout point at this site, a traditional meeting place of the Wardaman and Nungali-Ngaliwurru peoples whose lands overlap in this area.

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DOI: 10.3897/phytokeys.210.85668

Authors: Isaac Sandoval-Padilla, María del Pilar Zamora-Tavares, Eduardo Ruiz-Sánchez, Jessica Pérez-Alquicira, Ofelia Vargas-Ponce

Abstract: In this study, we sequenced, assembled, and annotated the plastome of Physalis cordata Mill. and compared it with seven species of the genus Physalis sensu stricto. Sequencing, annotating, and comparing plastomes allow us to understand the evolutionary mechanisms associated with physiological functions, select possible molecular markers, and identify the types of selection that have acted in different regions of the genome. The plastome of P. cordata is 157,000 bp long and presents the typical quadripartite structure with a large single-copy (LSC) region of 87,267 bp and a small single-copy (SSC) region of 18,501 bp, which are separated by two inverted repeat (IRs) regions of 25,616 bp each. These values are similar to those found in the other species, except for P. angulata L. and P. pruinosa L., which presented an expansion of the LSC region and a contraction of the IR regions. The plastome in all Physalis species studied shows variation in the boundary of the regions with three distinct types, the percentage of the sequence identity between coding and non-coding regions, and the number of repetitive regions and microsatellites. Four genes and 10 intergenic regions show promise as molecular markers and eight genes were under positive selection. The maximum likelihood analysis showed that the plastome is a good source of information for phylogenetic inference in the genus, given the high support values and absence of polytomies. In the Physalis plastomes analyzed here, the differences found, the positive selection of genes, and the phylogenetic relationships do not show trends that correspond to the biological or ecological characteristics of the species studied.

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DOI: 10.3897/phytokeys.209.87681

Authors: Sandra Knapp

Abstract: The genus Lycianthes (Dunal) Hassl. (Solanaceae) has in the past been treated as a section of the large genus Solanum L., but is more closely related to Capsicum L. The eighteen species of Lycianthes occurring in Australia, New Guinea (defined as the island of New Guinea, comprising Papua New Guinea [incl. Bougainville] and the Indonesian provinces of Papua Barat and Papua, plus the surrounding islands connected during the last glacial maximum) and the Pacific Islands are here treated in full, with complete descriptions, including synonymy, typifications and synonyms, distribution maps and illustrations. The history of taxonomic treatment of the genus in the region is also discussed. These taxa occupy a diverse range of forested habitats, and are in diverse in habit, from small shrubs to large canopy lianas to epiphytic shrubs. They are for the most part rarely collected, and many are endemic (14 of the 18 species treated here). Australia has a single endemic Lycianthes species (L. shanesii (F.Muell.) A.R.Bean). Nine species are found in both Indonesia and Papua New Guinea, one in Indonesia only, four in Papua New Guinea only, and L. vitiensis (Seem). A.R.Bean is known from Bougainville (Papua New Guinea) and the south Pacific as far east as Samoa. Lycianthes lucens S.Knapp sp. nov. is described from the islands of Lihir, New Ireland and the Louisiade Archipelago of Papua New Guinea. The cultivated L. rantonnetii (Carrière) Bitter is also treated in full, in this region known currently only from Australia; it is native to southern South America. Preliminary conservation assessments are presented for all species except the cultivated L. rantonnetii.

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DOI: 10.3897/phytokeys.202.82101

Authors: Andrés Orejuela, Boris Villanueva, Clara Inés Orozco, Sandra Knapp, Tiina Särkinen

Abstract: A new genus, Doselia A.Orejuela & Särkinen, gen. nov., is described in the tribe Solandreae (Solanaceae) consisting of four species of hemiepiphytic lianas endemic to the premontane forests of the Colombian and Ecuadorian Andes. The genus is distinguished based on the membranous leaves, usually sparsely pubescent with eglandular simple trichomes, pseudo-verticillate leaf arrangement, and elongated, pendulous, and few-flowered inflorescences with showy flowers and conical fruits. Three new combinations are made to transfer species to the new genus previously described as part of the polyphyletic genus Markea Rich. (Doselia epifita (S.Knapp) A.Orejuela & Särkinen, comb. nov., D. huilensis (A.Orejuela & J.M.Vélez) A.Orejuela & Särkinen, comb. nov. and D. lopezii (Hunz.) A.Orejuela & Särkinen, comb. nov.). One new species is described from the western slopes of the eastern cordillera of the Colombian Andes, known only from three localities in the Boyacá, Santander, and Tolima departments (Doselia galilensis A.Orejuela & Villanueva, sp. nov.). The new species is unique in the genus in having glabrescent adult leaves, green-purplish calyces and long, greenish-white, infundibuliform corollas with delicate purplish veins and large lobes tinged with purple, and pubescent styles. Here we provide a revision of Doselia with a distribution map of all species, an identification key, photographs, preliminary conservation assessments, and line drawings of all four species.

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DOI: 10.3897/phytokeys.200.71667

Authors: Gloria E. Barboza, Carolina Carrizo García, Luciano de Bem Bianchetti, María V. Romero, Marisel Scaldaferro

Abstract: Capsicum L. (tribe Capsiceae, Solanaceae) is an American genus distributed ranging from the southern United States of America to central Argentina and Brazil. The genus includes chili peppers, bell peppers, ajíes, habaneros, jalapeños, ulupicas and pimientos, well known for their economic importance around the globe. Within the Solanaceae, the genus can be recognised by its shrubby habit, actinomorphic flowers, distinctive truncate calyx with or without appendages, anthers opening by longitudinal slits, nectaries at the base of the ovary and the variously coloured and usually pungent fruits. The highest diversity of this genus is located along the northern and central Andes. Although Capsicum has been extensively studied and great advances have been made in the understanding of its taxonomy and the relationships amongst species, there is no monographic treatment of the genus as a whole. Based on morphological and molecular evidence studied from field and herbarium specimens, we present here a comprehensive taxonomic treatment for the genus, including updated information about morphology, anatomy, karyology, phylogeny and distribution. We recognise 43 species and five varieties, including C. mirum Barboza, sp. nov. from São Paulo State, Brazil and a new combination C. muticum (Sendtn.) Barboza, comb. nov.; five of these taxa are cultivated worldwide (C. annuum L. var. annuum, C. baccatum L. var. pendulum (Willd.) Eshbaugh, C. baccatum L. var. umbilicatum (Vell.) Hunz. & Barboza, C. chinense Jacq. and C. frutescens L.). Nomenclatural revision of the 265 names attributed to chili peppers resulted in 89 new lectotypifications and five new neotypifications. Identification keys and detailed descriptions, maps and illustrations for all taxa are provided.

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DOI: 10.3897/phytokeys.198.79514

Authors: Xavier Aubriot, Sandra Knapp

Abstract: The Leptostemonum Clade, or the “spiny solanums”, is the most species-rich monophyletic clade of the large cosmopolitan genus Solanum (Solanaceae) and represents almost half the species diversity of the genus. Species diversity in the clade is highest in the Americas, but significant clusters of endemic taxa occur in the Eastern Hemisphere. We present here a taxonomic revision of the 51 species of spiny solanums occurring in tropical Asia (excluding the island of New Guinea, and the lowlands of Nepal and Bhutan). Three species are described as new: Solanum kachinense X.Aubriot & S.Knapp, sp. nov. from northern Myanmar, S. peikuoense S.S.Ying, sp. nov. from Taiwan, and S. sulawesi X.Aubriot & S.Knapp, sp. nov. from northern Sulawesi, Indonesia. Of the spiny solanums occurring in the region, 38 are native and 13 are introduced from the Americas or Africa, either as adventive weeds or as cultivated plants. Phylogenetic resolution amongst these taxa is still a work in progress, so we have chosen to treat these taxa in a geographical context to aid with identification and further taxon discovery. For the native species we provide complete nomenclatural details for all recognised species and their synonyms, complete descriptions, distributions including maps, common names and uses, and preliminary conservation assessments. For the introduced taxa that have been treated in detail elsewhere we provide details of types, synonyms based on tropical Asian material, general distributions, and common names for the region. We provide lecto- or neotypifications for 67 names; 63 for native and 4 for introduced taxa. All taxa are discussed and compared to similar species; keys are provided for all taxa. We illustrate all native species with herbarium and field photographs and introduced species with field photographs only. All specimens examined for this treatment are included in Suppl. materials 1–3 as searchable files.

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DOI: 10.3897/phytokeys.195.78832

Authors: Juan David Tovar, Leandro Lacerda Giacomin

Abstract: We describe a new species of the Geminata clade of Solanum from Colombia and provide new distributional records for two additional Solanum species, recorded here for the first time in Colombia. Solanum bohsii J.D. Tovar, sp. nov. is morphologically similar to S. chlamydogynum Bitter from Venezuela of the Solanum sessile species group (Geminata clade). These two species can be distinguished by trichome morphology, as well as colour and density of the indumentum. In addition, we report new range expansions into Colombia for two species: S. tanysepalum S.Knapp (Geminata clade) known previously only from Venezuela and S. verecundum M.Nee (Brevantherum clade) from Ecuador and Peru.

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DOI: 10.3897/phytokeys.194.68404

Authors: Alejandrina Alaria, John H. Chau, Richard G. Olmstead, Iris E. Peralta

Abstract: Calibrachoa Cerv., Fabiana Ruiz & Pav., and Petunia Juss. form a clade within tribe Petunieae (Solanaceae). Phylogenetic studies of Petunieae, either as part of a family-wide analysis or focusing on the genera Calibrachoa and Petunia, have either left Fabiana unsampled or included only a single species. These studies have found conflicting relationships among the three genera with all three possible topologies obtained. Petunia patagonica (Speg.) Millán, originally described in the genus Nierembergia Ruiz & Pav., is morphologically distinct within Petunia and geographically disjunct from other members of the genus. For the first time, in this study we include multiple species of Fabiana, Calibrachoa, and Petunia, including P. patagonica. Using three chloroplast DNA regions and the nuclear gene GBSSI, or “waxy,” our results provide strong support for a sister group relationship between Calibrachoa and Fabiana and for the placement of P. patagonica within Fabiana. Since there is already a species Fabiana patagonica Speg., we provide the new name Fabiana australis Alaria nom. nov. to replace Petunia patagonica.

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DOI: 10.3897/phytokeys.190.76111

Authors: Mariana Augsten, Pablo Burkowski Meyer, Loreta B. Freitas, João A. N. Batista, João Renato Stehmann

Abstract: Nicotiana gandarela Augsten & Stehmann (Solanaceae), sp. nov., a small ’tobacco’ known only from one locality at Serra do Gandarela, in the state of Minas Gerais, Brazil, is described and illustrated. It is morphologically characterized by its rosulate basal leaves, red corolla with a short tube not inflated at the apex, and the peculiar habitat, a shaded site under a rocky outcrop ledge along a forested stream. Phylogenetic analyses based on a combined dataset of nuclear (ITS) and plastid (ndhF, trnLF, and trnSG) DNA sequences revealed that the species belongs to the Nicotiana sect. Alatae and is sister to the clade with the remaining species in the section. A key for the identification of Brazilian species of the section is given. The unusual habitat, the small population size, and the intense pressure of mining activities in the surroundings made the species assessed as Critically Endangered (CR), needing conservation efforts to avoid its extinction.

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DOI: 10.3897/phytokeys.188.73370

Authors: Ludovica Santilli, Fernanda Pérez, Claire de Schrevel, Philippe Dandois, Hector Mondaca, Nicolás Lavandero

Abstract: Nicotiana knightiana is recorded for the first time for the flora of Chile. A new species of Nicotiana, endemic to the coast of the Coquimbo region is described and illustrated. Molecular analysis placed the new species within the N. sect. Paniculatae, as sister to N. cordifolia, an endemic to Juan Fernandez islands. The new species can be considered critically endangered (CR) according to the IUCN categories due to its restricted and fragmented distribution, small population number, and the threat that urbanization and mining activities represent for the conservation of the biodiversity of the area.

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DOI: 10.3897/phytokeys.185.71377

Authors: María Virginia Palchetti, Juan José Cantero, Vanezza Morales-Fierro, Gloria E. Barboza, Andrés Moreira-Muñoz

Abstract: Very few Solanaceae species are able to grow in saline soils; one of them is Lycium humile. This species is endemic to the Altiplano-Puna region (Central Andes, South America) where there are multiple extreme environmental conditions such as hypersaline soils. Here we present an updated description and distribution of L. humile including its new record for Bolivia at the edges of “Salar de Uyuni”, the largest salt flat in the world; we discuss its ecological role in saline environments by analyzing soil salinity and cover-abundance values ​​of the studied sites. According to IUCN criteria, we recommend a category of Least Concern for L. humile, but the growing development of lithium mining in saline environments of the Altiplano-Puna region may potentially threaten exclusive communities.

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DOI: 10.3897/phytokeys.184.69037

Authors: Mihai Costea, Simone Soares da Silva, Rosangela Simao-Bianchini, Ana Rita G. Simoes, Sasa Stefanovic

Abstract: Cuscuta mantiqueirana Costea, S.S. Silva & Sim.-Bianch. a new species from montane cloud forests of the Serra da Mantiqueira, Brazil, is described and illustrated. The morphological and phylogenetic analyses revealed that the new species belongs to sect. Subulatae of subg. Grammica. The new species is related to C. odorata var. botryoides, C. rotundiflora and C. globiflora from which it differs in narrower calyx lobes and the presence of four stomatiferous lobes or projections at the distal part of the ovary. A detailed morphological comparison with C. odorata var. botryoides, morphologically the most similar taxon, is provided along with the geographical distribution, ecology and host range of the species. The morphological and phylogenetic relationships of the new species, as well as the diversity of stomatiferous projections, are discussed in the broader context of sect. Subulatae and subg. Grammica. Cuscuta boliviana var. paranensis is considered a synonym of C. odorata var. botryoides.

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DOI: 10.3897/phytokeys.178.64609

Authors: Izabella Martins da Costa Rodrigues, Sandra Knapp, João Renato Stehmann

Abstract: Two new species of Athenaea Sendtn. (Solanaceae) from the Brazilian Atlantic Forest are described and illustrated. Athenaea altoserranae I.M.C. Rodrigues & Stehmann, sp. nov. from the Serra do Mar range, in São Paulo State and Athenaea hunzikeriana I.M.C. Rodrigues & Stehmann, sp. nov. from a restricted area in the north-eastern region of Minas Gerais State and the southern part of Bahia State. Both species have brown to purple-brown or purple mature fruits, a character not found in other species of Athenaea. Descriptions, illustrations, complete specimen citations and maps of both species are provided. A dichotomous key to all species of Athenaea is also presented.

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DOI: 10.3897/phytokeys.168.51904

Authors: Ellen Dean, Jennifer Poore, Marco Antonio Anguiano-Constante, Michael H. Nee, Hannah Kang, Thomas Starbuck, Annamarie Rodrígues, Matthew Conner

Abstract: Lycianthes, the third most species-rich genus in the Solanaceae, is distributed in both the New and Old Worlds and is especially diverse in Mexico. Here we provide an identification key, taxonomic descriptions, distribution maps, and illustrations of specimens, trichomes, flowers, and fruits for the 53 known Lycianthes taxa of Mexico and Guatemala. The new combination Lycianthes scandens (Mill.) M.Nee is made and replaces the name Lycianthes lenta (Cav.) Bitter, which is placed in synonymy. Within L. scandens, two varieties are recognized (Lycianthes scandens var. scandens and Lycianthes scandens var. flavicans (Bitter) J.Poore & E.Dean, comb. nov.). In addition, one new species (Lycianthes rafatorresii E.Dean, sp. nov.) is described from eastern Mexico, and 10 names (either recognized taxa or synonyms of recognized taxa) are lectotypified, including the names Solanum heteroclitum Sendtn., S. rantonnetii Carrière, and S. synantherum Sendtn. The species L. multiflora Bitter and L. synanthera (Sendtn.) Bitter are excluded from the treatment, as research indicates that they do not occur in Mexico and Guatemala, however full synonymy for both names is given.

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DOI: 10.3897/phytokeys.167.57751

Authors: Gloria E. Barboza, Carolina Carrizo García, Marisel Scaldaferro, Lynn Bohs

Abstract: Capsicum regale Barboza & Bohs, sp. nov., a new species from the tropical wet forests of the eastern Andean slopes (Colombia, Ecuador, and Peru) is described and illustrated. This new species belongs to the Andean clade (all species 2n = 26) of Capsicum and is similar to C. longifolium Barboza & S.Leiva in its glabrescence, calyx morphology, and corolla and seed color but differs in its membranous and elliptic leaves, fleshy calyces, deeper stellate corollas, longer filaments, longer and purple fruiting pedicels, purple berries, and larger seeds. Its chromosome number was counted (2n = 26), a preliminary assessment of conservation status is given and discussed, and an updated identification key to the species of the Andean clade is provided.

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DOI: 10.3897/phytokeys.164.54504

Authors: Sandra Knapp, Franco Chiarini, Juan J. Cantero, Gloria E. Barboza

Abstract: Since the publication of the Solanaceae treatment in “Flora Argentina” in 2013 exploration in the country and resolution of outstanding nomenclatural and circumscription issues has resulted in a number of changes to the species of the Morelloid clade of Solanum L. (Solanaceae) for Argentina. Here we describe three new species: Solanum hunzikeri Chiarini & Cantero, sp. nov., from wet high elevation areas in Argentina (Catamarca, Salta and Tucumán) and Bolivia (Chuquisaca and Tarija), S. marmoratum Barboza & S. Knapp, sp. nov., from central Argentina in Catamarca, La Pampa, La Rioja, San Juan and San Luis, and S. tiinae Barboza & S. Knapp, sp. nov., from the mountains of Jujuy, La Rioja, Salta and Tucumán. We provide descriptions, illustrations and distribution maps for all new taxa. A table of nomenclatural changes and additional taxa now known to occur in Argentina summarizes additions and changes since the “Flora Argentina”. We also provide an updated key, including all new taxa for the country, to facilitate identification and further exploration.

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DOI: 10.3897/phytokeys.156.53703

Authors: Andres Moreira-Muñoz, Melica Muñoz-Schick

Abstract: Although the original description of Solanum polyphyllum Phil. was made in 1891, this species was not seen until it was re-discovered 128 years later in 2019 in the Atacama Desert. Fruits and seeds were previously unknown and a complete description is provided here. This species was not treated in the most recent monograph of Solanum sect. Regmandra, but it should be incorporated in this section due to its glabrous, sessile and entire leaves, which are decurrent onto the stem. Morphologically, S. polyphyllum is similar to S. paposanum, also of section Regmandra, but differs in the entire leaves (against margins with 4–5 acute lobes in S. paposanum) and glabrous leaves (moderately pubescent adaxially and velutinous abaxially in S. paposanum). The rediscovery of S. polyphyllum at a new locality at the same altitudinal belt as the type, re-affirms its restricted distribution and endemism and supports a potential conservation status as an endangered species.

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DOI: 10.3897/phytokeys.154.49615

Authors: Vanezza Morales-Fierro, Mélica Muñoz-Schick, Andrés Moreira-Muñoz

Abstract: We present a taxonomic synopsis of the South American genus Schizanthus Ruiz & Pav. (Solanaceae), within which we recognise seventeen taxa (14 species with three infraspecific taxa). The genus is mainly distributed in Chile between the coast of the Atacama Desert and the southern temperate forests, while two species occur in the Argentinian Provinces of Mendoza and Neuquén. This taxonomic treatment is based on the analysis of herbarium specimens from 30 different herbaria. For each accepted species we provide details of type specimens and synonymy, key characters, habitat, distribution information and presence in public or private protected areas. We also incorporate a list of representative localities from examined material. We here described three new taxa: Schizanthus porrigens Graham ex Hook. subsp. borealis V.Morales & Muñoz-Schick, subsp. nov., Schizanthus carlomunozii V.Morales & Muñoz-Schick, sp. nov. and its variety Schizanthus carlomunozii var. dilutimaculatus V.Morales & Muñoz-Schick, var. nov., all of them from the coast of Coquimbo Region. We also recognise Schizanthus litoralis Phil. var. humilis (Lindl.) V.Morales & Muñoz-Schick, comb. nov., as a new combination.

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DOI: 10.3897/phytokeys.151.49833

Authors: Diego Santos, Raysa Valéria Carvalho Saraiva, Tiago Massi Ferraz, Emília Cristina Pereira Arruda, Maria Teresa Buril

Abstract: A new species of Ipomoea, endemic to the Cerrado domain in Maranhão, Brazil, is described. Ipomoea maranhensis D.Santos & Buril, sp. nov. has been misidentified as I. burchellii Meisn. in several herbaria. Even though both species have oblong, pubescent leaves, they can be distinguished by morpho-anatomical characters. We present a diagnosis, complete description, illustration, taxonomic comments, conservation status and distribution map.

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DOI: 10.3897/phytokeys.149.50379

Authors: Paweena Traiperm, Somran Suddee

Abstract: Argyreia pseudosolanum Traiperm & Suddee, sp. nov. from the NE region of Thailand is described and illustrated. The new species is remarkable in having a very distinctive corolla shape similar to Solanum, and staminal filament bases glabrous or nearly glabrous with a few multicellular, uniseriate hairs at the attachment point on the corolla tube. Detailed descriptions, illustrations, a summary of the ecology and an IUCN conservation status are provided.

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DOI: 10.3897/phytokeys.145.48531

Authors: Donald H. R. McClelland, Michael Nee, Sandra Knapp

Abstract: Five new species of spiny solanums (Solanum subgenus Leptostemonum Bitter; the Leptostemonum Clade) are described from the islands of the Pacific. Two of the new species are from Fiji (S. pseudopedunculatum D.McClelland, sp. nov. and S. ratale D.McClelland, sp. nov.), two from New Caledonia (S. memoayanum D.McClelland, sp. nov. and S. semisucculentum D.McClelland, sp. nov.), one from Papua New Guinea (S. labyrinthinum D.McClelland, sp. nov.) and another from Vanuatu (S. vanuatuense D.McClelland, sp. nov.). A new status and combination is provided for the rare Hawaiian endemic S. caumii (F.Br.) D.McClelland, comb. et stat. nov. and a new type designated for S. peekelii Bitter of Papua New Guinea, for which a description is also provided. All species are illustrated with digitized herbarium specimens, mapped and have been assigned a preliminary conservation status using current IUCN guidelines. Details of all specimens examined are provided in a Suppl. materials 1: file SM1.

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DOI: 10.3897/phytokeys.143.32821

Authors: John R. I. Wood, Pablo Muñoz-Rodríguez, Bethany R. M. Williams, Robert W. Scotland

Abstract: A monograph of the 425 New World species of Ipomoea is presented. All 425 species are described and information is provided on their ecology and distribution, with citations from all countries from which they are reported. Notes are provided on salient characteristics and taxonomic issues related to individual species. A full synonymy is provided and 272 names are lectotypified. An extensive introduction discusses the delimitation and history of Ipomoea arguing that a broad generic concept is the only rational solution in the light of recent phylogenetic advances. Although no formal infrageneric classification is proposed, attention is drawn to the major clades of the genus and several morphologically well-defined clades are discussed including those traditionally treated under the names Arborescens, Batatas, Pharbitis, Calonyction and Quamoclit, sometimes as distinct genera, subgenera, sections or series. Identification keys are provided on a regional basis including multi-entry keys for the main continental blocks. Six species are described as new, Ipomoea nivea J.R.I. Wood & Scotland from Peru, I. apodiensis J.R.I. Wood & Scotland from Brazil, I. calcicola J.R.I. Wood & Scotland, I. pochutlensis J.R.I. Wood & Scotland, I. zacatecana J.R.I. Wood & Scotland and I. ramulosa J.R.I. Wood & Scotland from Mexico, while var. australis of I. cordatotriloba is raised to specific status as I. australis (O’Donell) J.R.I. Wood & P. Muñoz. New subspecies for I. nitida (subsp. krapovickasii J.R.I. Wood & Scotland) and for I. chenopodiifolia (subsp. bellator J.R.I. Wood & Scotland) are described. The status of previously recognized species and varieties is changed so the following new subspecies are recognized: I. amnicola subsp. chiliantha (Hallier f.) J.R.I. Wood & Scotland, I. chenopodiifolia subsp. signata (House) J.R.I. Wood & Scotland, I. orizabensis subsp. collina (House) J.R.I. Wood & Scotland, I. orizabensis subsp. austromexicana (J.A. McDonald) J.R.I. Wood & Scotland, I. orizabensis subsp. novogaliciana (J.A. McDonald) J.R.I. Wood & Scotland, I. setosa subsp. pavonii (Hallier f.) J.R.I. Wood & Scotland, I. setosa subsp. melanotricha (Brandegee) J.R.I. Wood & Scotland, I. setosa subsp. sepacuitensis (Donn. Sm.) J.R.I. Wood & Scotland, I. ternifolia subsp. leptotoma (Torr.) J.R.I. Wood & Scotland. Ipomoea angustata and I. subincana are treated as var. angustata (Brandegee) J.R.I. Wood & Scotland and var. subincana (Choisy) J.R.I. Wood & Scotland of I. barbatisepala and I. brasiliana respectively. Attention is drawn to a number of hitherto poorly recognized phenomena in the genus including a very large radiation centred on the Parana region of South America and another on the Caribbean Islands, a strong trend towards an amphitropical distribution in the New World, the existence of a relatively large number of species with a pantropical distribution and of many species in different clades with storage roots, most of which have never been evaluated for economic purposes. The treatment is illustrated with over 200 figures composed of line drawings and photographs.

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DOI: 10.3897/phytokeys.140.47071

Authors: Gloria E. Barboza, Luciano de Bem Bianchetti, João Renato Stehmann

Abstract: Capsicum carassense Barboza & Bianchetti sp. nov., a species from mid-elevation of the Atlantic Forest (Minas Gerais, Brazil) is described and illustrated. This endemic new species is distinguished from the most similar C. mirabile Mart. by its moderate to dense general pubescence, narrowly elliptic leaves and larger calyx appendages and corollas. A key for the native Brazilian species of Capsicum growing in the state of Minas Gerais is also provided.

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DOI: 10.3897/phytokeys.139.46635

Authors: Yuri Fernandes Gouvêa, Luiza Fonseca Amorim de Paula, João Renato Stehmann, Leandro Lacerda Giacomin

Abstract: Solanum hydroides Gouvêa & Giacomin, sp. nov., is described from central Brazilian Atlantic Forest. It is known from only three localities in Espírito Santo and Minas Gerais states, where granitic/gneissic outcrops (inselbergs or sugar loaves) are ubiquitous. The new species, here described, belongs to Solanum subgenus Leptostemonum (or the Leptostemonum clade; i.e. the spiny solanums) and is morphologically related to S. hexandrum Vell. and S. sublentum Hiern, with which it shares the shrubby habit, decurrent leaf bases and well-developed calyces that become accrescent, covering glabrous fruits. Solanum hydroides is unique in its combination of comparatively more delicate habit, indumentum of exclusively stellate eglandular trichomes, accrescent but never inflated fruiting calyces that only partially cover the fruits and comparatively shortly lobed and strictly white corollas. The species is threatened with extinction and assessed as Vulnerable (VU), based on the IUCN criteria.

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DOI: 10.3897/phytokeys.127.34326

Authors: Sandra Knapp, Maria S. Vorontsova, Tiina Särkinen

Abstract: Solanum L. (Solanaceae) is one of the largest genera of angiosperms and presents difficulties in identification due to lack of regional keys to all groups. Here we provide keys to all 135 species of Solanum native and naturalised in Africa (as defined by World Geographical Scheme for Recording Plant Distributions): continental Africa, Madagascar (incl. the Indian Ocean islands of Mauritius, La Réunion, the Comoros and the Seychelles), Macaronesia and the Cape Verde Islands. Some of these have previously been published in the context of monographic works, but here we include all taxa. The paper is designed to be used in conjunction with the web resource Solanaceae Source (www.solanaceaesource.org) and hyperlinks provide access to online descriptions, synonymy and images (where available) of each species. All taxa treated and specimens seen are included in searchable Suppl. material 1, 2.

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DOI: 10.3897/phytokeys.124.33526

Authors: Angela J. McDonnell, Heather B. Wetreich, Jason T. Cantley, Peter Jobson, Christopher T. Martine

Abstract: A bush tomato that has evaded classification by solanologists for decades has been identified and is described as a new species belonging to the Australian “Solanum dioicum group” of the Ord Victoria Plain biogeographic region in the monsoon tropics of the Northern Territory. Although now recognised to be andromonoecious, S. plastisexum Martine & McDonnell, sp. nov. exhibits multiple reproductive phenotypes, with solitary perfect flowers, a few staminate flowers or with cymes composed of a basal hermaphrodite and an extended rachis of several to many staminate flowers. When in fruit, the distal rachis may abcise and drop. A member of Solanum subgenus Leptostemonum, Solanum plastisexum is allied to the S. eburneum Symon species group. Morphometric analyses presented here reveal that S. plastisexum differs statistically from all of its closest relatives including S. eburneum, S. diversiflorum F. Meull., S. jobsonii Martine, J.Cantley & L.M.Lacey, S. succosum A.R.Bean & Albr. and S. watneyi Martine & Frawley in both reproductive and vegetative characters. We present evidence supporting the recognition of S. plastisexum as a distinctive entity, a description of the species, representative photographs, a map showing the distribution of members of the S. eburneum species group and a key to the andromonoecious Solanum species of the Northern Territory of Australia. This new species is apparently labile in its reproductive expression, lending to its epithet, and is a model for the sort of sexual fluidity that is present throughout the plant kingdom.

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DOI: 10.3897/phytokeys.123.31738

Authors: Sandra Knapp, Gloria E. Barboza, Lynn Bohs, Tiina Särkinen

Abstract: The Morelloid Clade, also known as the black nightshades or “Maurella” (Morella), is one of the 10 major clades within the mega-diverse genus Solanum L. The clade is most species rich in the central to southern Andes, but species occur around the tropics and subtropics, some extending well into the temperate zone. Plants of the group are herbaceous or short-lived perennials, with small white or purplish white flowers, and small juicy berries. Due to the complex morphological variation and weedy nature of these plants, coupled with the large number of published synonyms (especially for European taxa), our understanding of species limits and diversity in the Morelloid Clade has lagged behind that of other major groups in Solanum. Here we provide the second in a three-part series of revisions of the morelloid solanums treating the species occurring in North and Central America and the Caribbean (for the Old World see “PhytoKeys 106”, the third part will treat species of South America). Synonymy, morphological descriptions, distribution maps, and common names and uses are provided for all 18 species occurring in this region. We treat 10 of these species as native, and eight as putatively naturalised, introduced and/or invasive in the region. We provide complete descriptions with nomenclatural details, including lecto- and neotypifications, for all species. Keys to all species occurring in the whole region and for each area within it (i.e., North America, Central America and Mexico, and the islands of the Caribbean), illustrations to aid identification both in herbaria and in the field, and distribution maps are provided. Preliminary conservation assessments are provided for all species. Details of all specimens examined are provided in three Supplementary materials sections.

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DOI: 10.3897/phytokeys.118.31598

Authors: Yuri Fernandes Gouvêa, João Renato Stehmann, Sandra Knapp

Abstract: Solanum medusae sp. nov. is described from the Cerrado biome in the Serra da Canastra region, southwestern Minas Gerais State, Brazil. The new species is morphologically similar to the common S. lycocarpum A.St.-Hil. (known as lobeira or wolf-fruit), but differs from it in habit and pubescence characters. We here describe this new taxon and discuss its morphology, some aspects of its ecology, affinities and distribution. Full specimen citations are provided, as well as illustrations, distribution map and a preliminary conservation assessment of the species. A key to all of the known extra-Amazonian Brazilian species of the Androceras/Crinitum clade is also provided to aid in their identification.

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DOI: 10.3897/phytokeys.111.28595

Authors: Yuri Fernandes Gouvêa, Leandro Lacerda Giacomin, João Renato Stehmann

Abstract: We describe a new species of spiny Solanum (Solanum subg. Leptostemonum), endemic to the Brazilian Atlantic Forest and associated with granitic outcrops (inselbergs or sugar loaf mountains). Solanum kollastrum Gouvêa & Giacomin, sp. nov. is morphologically similar to the poorly known S. sublentum Hiern, but is a heavily armed, much more robust plant with stellate-glandular indumentum. Together with S. sublentum, it is morphologically related to some species of Solanum such as S. hexandrum Vell., S. robustum H.Wendl., and S. stagnale Moric. that share strongly accrescent calyces, large leaves with the bases decurrent on to the petiole, pendent simple inflorescences and large, robust flowers. The new species is restricted to a few known populations in southern Bahia and north-eastern Minas Gerais states and conservation efforts are needed.

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DOI: 10.3897/phytokeys.108.27254

Authors: Sandra Knapp, Tiina Särkinen

Abstract: Solanum caatingae sp. nov. is described from the arid caatinga biome of north-eastern Brazil. It is known from only a few specimens, but these were found amongst the many sheets of the widespread circumtropical weed S. americanum Mill.; it is possible that more will be found once its distinct nature has been recognised. It differs from S. americanum and all other herbaceous black nightshades known in Brazil, in its combination of glandular pubescence and shiny black fruit with small spreading sepals. The description of S. caatingae brings the number of morelloid solanums in Brazil to seven and a key is provided for their identification.

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DOI: 10.3897/phytokeys.106.21991

Authors: Tiina Särkinen, Peter Poczai, Gloria E. Barboza, Gerard M. van der Weerden, Maria Baden, Sandra Knapp

Abstract: The Morelloid clade, also known as the black nightshades or “Maurella” (Morella), is one of the 10 major clades within Solanum L. The pantropical clade consists of 75 currently recognised non-spiny herbaceous and suffrutescent species with simple or branched hairs with or without glandular tips, with a centre of distribution in the tropical Andes. A secondary centre of diversity is found in Africa, where a set of mainly polyploid taxa occur. A yet smaller set of species is found in Australasia and Europe, including Solanum nigrum L., the type of the genus Solanum. Due to the large number of published synonyms, combined with complex morphological variation, our understanding of species limits and diversity in the Morelloid clade has remained poor despite detailed morphological studies carried out in conjunction with breeding experiments. Here we provide the first taxonomic overview since the 19th century of the entire group in the Old World, including Africa, Asia, Australia, Europe and islands of the Pacific. Complete synonymy, morphological descriptions, distribution maps and common names and uses are provided for all 19 species occurring outside the Americas (i.e. Africa, Asia, Australia, Europe and islands of the Pacific). We treat 12 species native to the Old World, as well as 7 taxa that are putatively introduced and/or invasive in the region. The current knowledge of the origin of the polyploid species is summarised. A key to all of the species occurring in the Old World is provided, together with line drawings and colour figures to aid identification both in herbaria and in the field. Preliminary conservation assessments are provided for all species.

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DOI: 10.3897/phytokeys.88.12891

Authors: John R.I. Wood, Pablo Muñoz-Rodríguez, Rosa Degen, Robert W. Scotland

Abstract: The importance of discovering, describing and cataloguing poorly known species in herbarium collections is discussed. It is a spur to efforts at rediscovery and consequent conservation efforts. The problems faced in describing species from limited material are discussed and our methods and criteria in making a decision are described. Prospects for future novelties are briefly assessed. Fifteen new species are described and illustrated with line drawings and distribution maps: Ipomoea attenuata J.R.I. Wood & Scotland, I. cuscoensis J.R.I. Wood & P. Muñoz, I. dasycarpa J.R.I. Wood & Scotland, I. dolichopoda J.R.I. Wood & R. Degen, I. ensiformis J.R.I.Wood & Scotland, I. fasciculata J.R.I. Wood & Scotland, I. graminifolia J.R.I. Wood & Scotland, I. kraholandica J.R.I. Wood & Scotland, I. longirostra J.R.I. Wood & Scotland, I. revoluta J.R.I. Wood & Scotland, I. scopulina J.R.I. Wood &. Scotland, I. uninervis J.R.I. Wood & Scotland, I. veadeirosii J.R.I. Wood & Scotland, I. velutinifolia J.R.I. Wood & Scotland, I. walteri J.R.I. Wood & Scotland. All species are narrow endemics except I. velutinifolia which is found in Brazil and Peru; of the others, 12 are found in Brazil and one each in Paraguay and Peru.

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DOI: 10.3897/phytokeys.85.12607

Authors: Robin Fernandez-Hilario, Stacey D. Smith

Abstract: Saracha andina Rob. Fernandez, I. Revilla & E. Pariente, sp. nov. (Solanaceae), a new species endemic to the central Andes of Peru, is described here. The new species differs from other species of Saracha Ruiz & Pav. by the combination of small and coriaceous leaves and clearly tubular flowers. A summary of the taxonomic history of the genus Saracha, an identification key for its species and a phylogenetic analysis of this genus and related genera are provided.

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DOI: 10.3897/phytokeys.84.12695

Authors: Sandra Knapp, Eva Sagona, Anna K.Z. Carbonell, Franco Chiarini

Abstract: The Solanum elaeagnifolium clade (Elaeagnifolium clade) contains five species of small, often rhizomatous, shrubs from deserts and dry forests in North and South America. Members of the clade were previously classified in sections Leprophora, Nycterium and Lathyrocarpum, and were not thought to be closely related. The group is sister to the species-rich monophyletic Old World clade of spiny solanums. The species of the group have an amphitropical distribution, with three species in Mexico and the southwestern United States and three species in Argentina. Solanum elaeagnifolium occurs in both North and South America, and is a noxious invasive weed in dry areas worldwide. Members of the group are highly variable morphologically, and this variability has led to much synonymy, particularly in the widespread S. elaeagnifolium. We here review the taxonomic history, morphology, relationships and ecology of these species and provide keys for their identification, descriptions, full synonymy (including designations of lectotypes) and nomenclatural notes. Illustrations, distribution maps and preliminary conservation assessments are provided for all species.

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DOI: 10.3897/phytokeys.82.12106

Authors: L. Mae Lacey, Christopher T. Martine

Abstract: A new species of Solanum from the Australian “andromonoecious bush tomato clade” of Solanum subgenus Leptostemonum is described. Solanum jobsonii Martine, J.Cantley, & L.M.Lacey, sp. nov. is part of the S. eburneum Symon species group. It most closely resembles S. eburneum and S. watneyi Martine & Frawley of the northwestern part of the Northern Territory, but is separated geographically from them by the Sturt Plateau. Morphometric analyses show that S. jobsonii differs statistically from S. eburneum, S. watneyi, and S. diversiflorum F.Muell. – a similar species in habit and leaf characters – in several key reproductive and vegetative characters. We provide morphometric evidence for the recognition of S. jobsonii, a complete description, a table of comparisons within its species group, and a map showing species group distributions. One of the first new species to be described from Limmen National Park (established 2012), S. jobsonii is a testament to the value of designating and protecting public lands, as well as supporting science relating to them.

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DOI: 10.3897/phytokeys.76.11031

Authors: Suelma Ribeiro-Silva, Sandra Knapp, Carolyn E.B Proença

Abstract: Solanum brasilianum Dunal was described by Dunal in 1813 with reference only to an illustration in an 18th century work by Leonard Plukenet. The plate is difficult to interpret and no explicitly related specimens were available so the name S. brasilianum has long been regarded as “unresolved” and has never been used. Material matching the Plukenet plate was discovered in the herbarium of the University of Oxford (OXF) by Stephen Harris during his study of the English privateer William Dampier’s Brazilian collection. The specimen is referable to a common Brazilian Solanum that is a member of the Torva clade, Solanum paniculatum L., making S. brasilianum Dunal a heterotypic synonym. We lectotypify S. brasilianum here, and designate an epitype using the Dampier material from OXF.

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DOI: 10.3897/phytokeys.70.9758

Authors: Xavier Aubriot, Caroline Loup, Sandra Knapp

Abstract: Taxonomic revision of the tropical Asian species of Solanum revealed two names, Solanum poka Dunal and Solanum graciliflorum Dunal, whose identities were uncertain and whose application has always been tentative. Material collected in Java at the beginning of the 19th century by Jean-Baptiste Leschenault de la Tour and used to describe these taxa has not been found, despite extensive searches in European herbaria. We here stabilise use of these names by comparing herbarium specimens and drawings of original material made by the artist Toussaint François Node-Véran. Detailed descriptions with synonymy, preliminary conservation assessments and specimen citations are provided for both species. Lectotypes are designated for all names (including synonyms) and epitypes designated for S. poka and S. graciliflorum to stabilise usage.

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DOI: 10.3897/phytokeys.66.8457

Authors: Sandra Knapp, Maria S. Vorontsova

Abstract: The African Non-Spiny (ANS) clade contains 14 species of mostly large canopy lianas or scandent shrubs confined to Madagascar (10) and continental Africa (4, with with one species reaching the southern Arabian peninsula). Members of the clade were previously classified in sections Afrosolanum Bitter, Benderianum Bitter, Lemurisolanum Bitter, Macronesiotes Bitter and Quadrangulare Bitter, and were throught to be related to a variety of New World groups. The group is an early-branching lineage of non-spiny solanums and characters shared with other vining New World solanums are homoplastic. The 14 species of the group occupy a wide range of habitats, from wet forests in western Africa to savanna and dry forests of southern Madagascar and dune habitats in South Africa. Many members of the group are highly variable morphologically, and habit can vary between shrub and canopy vine in a single locality. We here review the taxonomic history, morphology, potential relationships and ecology of these species; we provide keys for their identification, descriptions, full synonymy (including designations of lectotypes and neotypes) and nomenclatural notes. Illustrations, distribution maps and preliminary conservation assessments are provided for all species.

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DOI: 10.3897/phytokeys.61.7258

Authors: João Renato Stehmann, Nayara Couto Moreira

Abstract: A new species of Solanum (Solanaceae) from the Geminata clade is described for the Brazilian flora. S. lagoense Stehmann is only known from Lapinha, a rocky massif located in the Lagoa Santa karst region of Minas Gerais State. The flora of this area, including Solanaceae, was studied in detail in the second half of the 19th century by the Danish botanist Eugene Warming. The species differs from other members of the Geminata clade in Brazil in its geminate leaves of different sizes, simple multicellular trichomes present on the new growth and young stems, short extra-axillary inflorescences with few (1-3) flowers, and its stellate corollas with cucullate and strongly reflexed lobes. Here we present a description, taxonomic comments and a preliminary assessment of conservation status of this critically endangered species.

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DOI: 10.3897/phytokeys.61.6995

Authors: Christopher T. Martine, Emma S. Frawley, Jason T. Cantley, Ingrid E. Jordon-Thaden

Abstract: A new species of andromonoecious Solanum from the Australian “bush tomato clade” of Solanum subgenus Leptostemonum is described. Solanum watneyi Martine & Frawley, sp. nov. is closely allied with S. eburneum, and is sympatric with it in parts of its range in the Northern Territory. The new species has been recognized as a variant of S. eburneum for decades, at times being referred to by local botanists as Solanum sp. “Bullita” because of its relative abundance in the vicinity of the Bullita Station area of Judbarra/Gregory National Park. Morphometric analyses show that S. watneyi differs statistically from S. eburneum in several key reproductive and vegetative characters and field observations suggest that the two sister species may represent a case of edaphic speciation. We provide morphometric evidence for the novelty of S. watneyi, a complete description, and cite specimens for both species.

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DOI: 10.3897/phytokeys.51.7104

Authors: John R.I. Wood, Bethany R.M. Williams, Thomas C. Mitchell, Mark A. Carine, David J. Harris, Robert W. Scotland

Abstract: A global revision of Convolvulus L. is presented, Calystegia R.Br. being excluded on pragmatic grounds. One hundred and ninety species are recognised with the greatest diversity in the Irano-Turanian region. All recognised species are described and the majority are illustrated. Distribution details, keys to species identification and taxonomic notes are provided. Four new species, Convolvulus austroafricanus J.R.I.Wood & R.W.Scotland, sp. nov., Convolvulus iranicus J.R.I.Wood & R.W.Scotland, sp. nov., Convolvulus peninsularis J.R.I.Wood & R.W.Scotland, sp. nov. and Convolvulus xanthopotamicus J.R.I.Wood & R.W.Scotland, sp. nov., one new subspecies Convolvulus chinensis subsp. triangularis J.R.I.Wood & R.W.Scotland, subsp. nov., and two new varieties Convolvulus equitans var. lindheimeri J.R.I.Wood & R.W.Scotland, var. nov., Convolvulus glomeratus var. sachalitarum J.R.I.Wood & R.W.Scotland, var. nov. are described. Convolvulus incisodentatus J.R.I.Wood & R.W.Scotland, nom. nov., is provided as a replacement name for the illegitimate Convolvulus incisus Choisy. Several species treated as synonyms of other species in recent publications are reinstated including C. chinensis Ker-Gawl., C. spinifer M.Popov., C. randii Rendle and C. aschersonii Engl. Ten taxa are given new status and recognised at new ranks: Convolvulus namaquensis (Schltr. ex. A.Meeuse) J.R.I.Wood & R.W.Scotland, stat. nov., Convolvulus hermanniae subsp. erosus (Desr.) J.R.I.Wood & R.W.Scotland, stat. nov., Convolvulus crenatifolius subsp. montevidensis (Spreng.) J.R.I.Wood & R.W.Scotland, stat. nov., Convolvulus fruticulosus subsp. glandulosus (Webb) J.R.I.Wood & R.W.Scotland, stat. nov., Convolvulus capituliferus subsp. foliaceus (Verdc.) J.R.I.Wood & R.W.Scotland, stat. nov., Convolvulus hystrix subsp. ruspolii (Dammer ex Hallier f.) J.R.I.Wood & R.W.Scotland, stat. nov., Convolvulus hystrix subsp. inermis (Chiov.) J.R.I.Wood & R.W.Scotland, stat. nov., Convolvulus rottlerianus subsp. stocksii (Boiss.) J.R.I.Wood & R.W.Scotland, comb. et stat. nov., Convolvulus calvertii subsp. ruprechtii (Boiss.) J.R.I.Wood & R.W.Scotland, stat. nov., Convolvulus cephalopodus subsp. bushiricus (Bornm.) J.R.I.Wood & R.W.Scotland, stat. nov. The status of various infraspecific taxa is clarified and numerous taxa are lectotypified. This account represents a new initiative in terms of taxonomic monography, being an attempt to bring together the global approach of the traditional monograph with the more pragmatic and identification-focussed approach of most current floras while at the same time being informed by insights from molecular systematics.

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DOI: 10.3897/phytokeys.47.4423

Authors: Tiina Sarkinen, Sandra Knapp, Michael Nee

Abstract: Two new Bolivian species are described from the Morelloid clade of Solanum (section Solanum in the traditional sense). Solanum alliariifolium M.Nee & Särkinen, sp. nov. is found in montane forests between 1,900 and 3,200 m and is morphologically most similar to S. leptocaulon Van Heurck & Müll.Arg., also from montane forests in southern Peru and Bolivia. Solanum rhizomatum Särkinen & M.Nee, sp. nov. is found in seasonally dry forests and matorral vegetation in lower elevations between 1,300 and 2,900 m and is most similar to S. pygmaeum Cav., a species native to sub-tropical Argentina but introduced in subtropical and temperate areas worldwide.

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DOI: 10.3897/phytokeys.47.9076

Authors: Sandra Knapp, João Renato Stehmann, Leandro L. Giacomin

Abstract: Two additions and four new species are described from Brazil for the large Geminata clade (Solanum: Solanaceae) bringing the total diversity in the group to 149 species, with 44 of these occurring in Brazil. New species are described from Brazil: S. amorimii S.Knapp & Giacomin, sp. nov. from Bahia and adjacent Minas Gerais states, S. filirhachis Giacomin & Stehmann, sp. nov. from Espirito Santo, S. psilophyllum Stehmann & Giacomin, sp. nov. from Minas Gerais and S. verticillatum S.Knapp & Stehmann, sp. nov. from São Paulo, Rio de Janeiro and Minas Gerais. Modern character-rich descriptions and lectotypifications are provided for S. apiahyense Witasek and Solanum lacteum Vell. All are illustrated, mapped and assessed for conservation status. We also provide a brief analysis of the diversity and endemism of the Geminata clade in Brazil and a key to all 44 Brazilian species.

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DOI: 10.3897/phytokeys.46.9069

Authors: Rocío Deanna, Segundo Leiva González, Gloria Estela Barboza

Abstract: According to the latest phylogenetic and cytogenetic results, Larnax and Deprea should be merged in order to form a natural group. Consequently, we propose 32 combinations of Larnax species names under Deprea: D. abra-patriciae (S.Leiva & Barboza) S.Leiva & Deanna, comb. nov., D. altomayoensis (S.Leiva & Quip.) Barboza & Deanna, comb. nov., D. andersonii (N.W.Sawyer) Deanna & S.Leiva, comb. nov., D. bongaraensis (S.Leiva) Deanna & Barboza, comb. nov., D. chotanae (S.Leiva, Pereyra & Barboza) S.Leiva, comb. nov., D. darcyana (N.W.Sawyer) Barboza & S.Leiva, comb. nov., D. dilloniana (S.Leiva, Quip. & N.W.Sawyer) Barboza, comb. nov., D. grandiflora (N.W.Sawyer & S.Leiva) Deanna & Barboza, comb. nov., D. harlingiana (Hunz. & Barboza) S.Leiva & Deanna, comb nov., D. hawkesii (Hunz.) Deanna, comb. nov., D. kann-rasmussenii (S.Leiva & Quip.) S.Leiva & Barboza, comb. nov., D. longipedunculata (S.Leiva, E.Rodr. & J.Campos) Barboza, comb. nov., D. lutea (S.Leiva) Deanna, comb. nov., D. macasiana (Deanna, S.Leiva & Barboza) Barboza, comb. nov., D. maculatifolia (E.Rodr. & S.Leiva) S. Leiva, comb. nov., D. nieva (S.Leiva & N.W.Sawyer) Barboza & Deanna, comb. nov., D. parviflora (N.W.Sawyer & S.Leiva) S.Leiva, comb. nov., D. pedrazae (S.Leiva & Barboza) Deanna & S.Leiva, comb. nov., D. peruviana (Zahlbr.) S.Leiva & Barboza, comb. nov., D. pilosa (S.Leiva, E.Rodr. & J.Campos) Deanna, comb. nov., D. pomacochaensis (S.Leiva) Barboza, comb. nov., D. psilophyta (N.W.Sawyer) S.Leiva & Deanna, comb. nov., D. pumila (S.Leiva, Barboza & Deanna) S.Leiva, comb. nov., D. purpurea (S.Leiva) Barboza & S.Leiva, comb. nov., D. purpureocarpa (S.Leiva, Deanna & Barboza) Deanna, comb. nov., D. sachapapa (Hunz.) S.Leiva & Deanna, comb. nov., D. sagasteguii (S.Leiva, Quip. & N. W.Sawyer) Barboza, comb. nov., D. sawyeriana (S.Leiva, E.Rodr. & J.Campos) S.Leiva, comb. nov., D. schjellerupiae (S.Leiva & Quip.) Barboza & Deanna, comb. nov., D. steyermarkii (Hunz.) S.Leiva & Barboza, comb. nov., D. toledoana (Barboza & S.Leiva) Barboza, comb. nov., and D. vasquezii (S.Leiva, E.Rodr. & J.Campos) Deanna, comb. nov.

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DOI: 10.3897/phytokeys.44.8693

Authors: Tiina Särkinen, Paúl Gonzáles, Sandra Knapp

Abstract: Four new species of “non-spiny” Solanum from South America are described. Solanum longifilamentum Särkinen & P.Gonzáles, sp. nov. (Morelloid clade) is widespread from Ecuador to Bolivia and is most similar to S. macrotonum Dunal from Central and northern South America. Solanum antisuyo Särkinen & S.Knapp, sp. nov. (Morelloid clade) is found on the eastern Andean slopes in Ecuador, Peru and Bolivia and is most similar to the widespread lower elevation species S. polytrichostylum Bitter. Solanum arenicola Särkinen & P.Gonzáles, sp. nov. (Morelloid clade) is found in low elevation habitats on the eastern Andean slopes and in Amazonia of Peru and Bolivia and is most similar to the higher elevation species S. aloysiifolium Dunal of Bolivia and Argentina. Solanum mariae Särkinen & S.Knapp, sp. nov. (Potato clade) is endemic to Cajamarca Department in Peru, and is most similar to the widespread S. caripense Dunal. Complete descriptions, distributions and preliminary conservation assessments of all new species are given.

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DOI: 10.3897/phytokeys.39.7513

Authors: Stephen Stern

Abstract: A new species of Solanum is described from Peru. Solanum junctum S. Stern & M. Nee, sp nov. is a member of the Torva clade of the spiny solanums (Leptostemonum clade). The narrow corolla lobes and recurved prickles of S. junctum are similar to species in the Micracantha clade, but S. junctum differs in its branched inflorescences and upright green fruits. These characteristics are shared with other members the Torva clade; within this section S. junctum is morphologically most similar to S. subinerme and S. poinsettiifolium. Solanum subinerme has larger flowers, longer cauline prickles, and often has long straight prickles on the adaxial leaf surface that are lacking in S. junctum. Solanum poinsettiifolium has fewer spines, dense white tomentum on the abaxial leaf surfaces, stout unbranched inflorescences, and more extensive interpetalar corolla tissue than S. junctum.

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DOI: 10.3897/phytokeys.38.7055

Authors: Leandro Giacomin, Joao Stehmann

Abstract: Three new Brazilian species of the Brevantherum clade of Solanum (Solanaceae) are described, all closely related to the poorly known Solanum inornatum Witasek. Solanum bradei Giacomin & Stehmann, sp.nov., and Solanum kriegeri Giacomin & Stehmann, sp. nov., differ from S. inornatum invery small deltate calyx lobes that are not accrescent in fruit. Solanum bradei is a shrub up to 1.8 m with generally pedunculate inflorescences and tiny translucent fruits, whereas Solanum kriegeri is a dwarf glabrescent plant growing on sandy soils in cloud forests, with larger fruits and sessile to subsessile inflorescence. Solanum friburgense Giacomin & Stehmann, sp. nov., has linear calyx lobes like S. inornatum, and is characterized by its 2-foliate sympodia and leaf pubescence, with trichomes concentrated on leaf veins. The species here described and illustrated are restricted to the mountain ranges of Mantiqueira and Serra do Mar in the Atlantic forests of southeastern Brazil and are all of considerable conservation concern.

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DOI: 10.3897/phytokeys.32.6020

Authors: Mitchell Provance, Andrew Sanders

Abstract: A new morning glory, Calystegia felix Provance & A.C. Sanders sp. nov. (Convolvulaceae), is described from the Los Angeles, San Gabriel, and Santa Ana River basins. Historical collections of the species, which prior to 2011 had not been seen alive in 94 years, have been misidentified as Calystegia sepium (L.) R. Br. subsp. binghamiae (Greene) Brummitt. The undescribed species was rediscovered in the City of Chino in April of 2011, a few miles north of the location where the most recent previous collection had been made by I. M. Johnston in 1917. The plants were found just prior to their likely destruction by grading and trenching for an underground power line. Intensive searches have resulted in the discovery of five additional occurrences, all of them in the City of Chino. Calystegia felix is at high risk of soon becoming extinct in the wild. All of the known extant occurrences are associated with well-watered landscaping on recently completed industrial, commercial, and residential developments. Every known living occurrence is within the limits of a ciénega belt, which is now mostly historical. Otherwise, the new species is only known only from collections made around the turn of the 20th century in what are now heavily urbanized areas, including one from South Los Angeles and another from Pico Rivera in Los Angeles County. Calystegia felix lacks the large bracts that immediately subtend, and enclose the calyx, which are always present in members of the C. sepium complex. Affinities to C. felix are found among other western US species with graduated sepals and small, often somewhat remote bracts. We discuss the enduring confusion between C. felix and C. sepium subsp. binghamiae, and differentiate the new species from some of its more likely relatives. The taxonomic treatment is supplemented by photos of herbarium specimens and living plants. We also discuss the ecological setting of Chino’s ciénega belt, which was a mosaic of palustrine wetlands.

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DOI: 10.3897/phytokeys.31.6312

Authors: Tiina Sarkinen, Paúl Gonzáles, Sandra Knapp

Abstract: A new species of Solanum sect. Solanum from Peru is described here. Solanum pseudoamericanum Särkinen, Gonzáles & S.Knapp sp. nov. is a member of the Morelloid clade of Solanum, and is characterized by the combination of mostly forked inflorescences, flowers with small stamens 2.5 mm long including the filament, and strongly exerted styles with capitate stigmas. The species was first thought to be restricted to the seasonally dry tropical forests of southern Peru along the dry valleys of Río Pampas and Río Apurímac. Results from species distribution modelling (SDM) analysis with climatic predictors identified further potential suitable habitat areas in northern and central Peru. These areas were visited during field work in 2013. A total of 17 new populations across the predicted distribution were discovered using the model-based sampling method, and five further collections were identified amongst herbarium loans. Although still endemic to Peru, S. pseudoamericanum is now known from across northern, central and southern Peru. Our study demonstrates the usefulness of SDM for predicting new occurrences of rare plants, especially in the Andes where collection densities are still low in many areas and where many new species remain to be discovered.

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DOI: 10.3897/phytokeys.30.6003

Authors: Christopher Martine, David E. Symon, Elizabeth C. Evans

Abstract: A new species of dioecious Solanum from the Australian “Dioicum Complex” of Solanum subgenus Leptostemonum is described. Solanum cowiei Martine sp. nov., is allied with other members of this problematic lineage, but differs in its slender leaves, limited armature and diminutive habit. The species was first segregated by botanists at the Northern Territory Herbarium as Solanum sp. Litchfield (I.D. Cowie 1428); and specimens representing this species have also been referred to by Symon as Solanum sp. Fitzmaurice River. Collections suggest that this is an endemic of the sub-arid tropical zone of the Northern Territory. SEM images support initial assumptions that the new species is cryptically dioecious via production of inaperturate pollen grains in morphologically hermaphrodite flowers.

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DOI: 10.3897/phytokeys.25.4692

Authors: Sandra Knapp, Maria Vorontsova

Abstract: A Solanum species long considered an American introduction to the Cape Verde Islands off the west coast of Africa is identified as Solanum rigidum, a member of the Eggplant clade of Old World spiny solanums (Solanum subgenus Leptostemonum) and is probably endemic to the Cape Verde Islands. Collections of this species from the Caribbean are likely to have been introduced from the Cape Verde Islands on slave ships. We discuss the complex nomenclatural history of this plant and provide a detailed description, illustration and distribution map. The preliminary conservation status of S. rigidum is Least Concern, but needs to be reassessed in light of its endemic rather than introduced status.

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DOI: 10.3897/phytokeys.22.4041

Authors: Sandra Knapp

Abstract: The Dulcamaroid clade of Solanum contains 45 species of mostly vining or weakly scandent species, including the common circumboreal weed Solanum dulcamara L. The group comprises members of the previously recognised infrageneric groupings sect. Andropedas Rusby, sect. Californisolanum A. Child, sect. Dulcamara (Moench) Dumort., sect. Holophylla (G.Don) Walp., sect. Jasminosolanum (Bitter) Seithe, sect. Lysiphellos (Bitter) Seithe, subsect. Nitidum A.Child and sect. Subdulcamara Dunal. These infrageneric groups are not monophyletic as traditionally recognised, and the complex history of the classification of the dulcamaroid solanums is reviewed. Many of the species in the clade are quite variable morphologically; plants are shrubs, herbaceous vines or woody canopy lianas, and habits can vary between these states in a single locality. Variation in leaf shape and pubescence density and type is also extreme and has lead to the description of many minor morphological variants as distinct species. The flowers of members of the group are generally very showy, and several species (e.g., S. crispum Ruiz & Pav., S. laxum Spreng., S. seaforthianum Andrews) are popular ornamental plants that have occasionally escaped from cultivation and become naturalised. The clade is here divided into five morphologically and geographically delimited species groups to facilitate further study. One new species from southern Ecuador, Solanum agnoston S.Knapp sp. nov., is described here. Full descriptions and synonymies (including designations of lectotypes or neotypes), preliminary conservation assessments, illustrations, distribution maps, and an extensive list of localities are provided for all species.

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DOI: 10.3897/phytokeys.18.3903

Authors: Franco Chiarini, Lilian Auler Mentz

Abstract: A new species of Solanum belonging to section Acanthophora (subgenus Leptostemonum) from Argentina and Brazil is described. Solanum neei Chiarini & L.A.Mentz, sp. nov. is found in clearings of semideciduous forests and in secondary formations, from the states of Paraná, Rio Grande do Sul and Santa Catarina in Brazil to the Misiones province in Argentina. It is morphologically similar to S. incarceratum Ruiz & Pav. from Peru, Bolivia and Western-Central Brazil, differing mainly by its pedunculate inflorescences. A key to related species is provided, as well a photograph of the holotype, a distribution map and illustration.

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DOI: 10.3897/phytokeys.16.2884

Authors: Mkabwa L.K. Manoko, Gerard M. van der Weerden, Ronald van den Berg, Celestina Mariani

Abstract: Solanum umalilaense Manoko sp. nov. (Solanaceae) is described from the Umalila area, in the southern highlands of Tanzania. Its novelty is supported with both morphological and AFLP data. Phenetic and phylogenetic analyses place S. umalilaense as a unique and well-supported taxon among tetraploid species of Solanum sect. Solanum from Africa. It can be distinguished from other African species by its extremely developed branching, each branch producing many multi-flowered inflorescences, flowers with short calyx lobes and its persistent, small, light yellowish brown fruits.

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DOI: 10.3897/phytokeys.10.2558

Authors: Natalia Filipowicz, Michael Nee, Susanne Renner

Abstract: Brunfelsia plowmaniana N.Filipowicz & M.Nee sp. nov., a species from humid and cloud forests of the Bolivian and Argentinean Andes, is described and provided with a molecular diagnosis, using provisions available in the recently approved International Code of Nomenclature for algae, fungi and plants. Specimens belonging to the new species were previously placed in the polymorphic B. uniflora (Pohl) D.Don, which a molecular phylogeny revealed as polyphyletic. Revision of numerous collections revealed clear morphological differences between the new species and B. uniflora, the type locality of which is in the state of São Paulo, Brazil.

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DOI: 10.3897/phytokeys.8.2199

Authors: Stephen Stern, Lynn Bohs

Abstract: Solanum is one of the largest plant genera and exhibits a wide range of morphological diversity. Solanum section Gonatotrichum, the focus of this study, is unique within the genus because of its fruits that swell with turgor pressure and explosively dehisce to disperse the seeds. We infer phylogenetic relationships within section Gonatotrichum using DNA sequence data from two nuclear regions (ITS and the granule-bound starch synthase gene [GBSSI or waxy]) and the chloroplast region trnT-F. The resulting phylogenetic trees support the monophyly of the section with the inclusion of S. lignescens, a species not previously thought to belong to the group due to the presence of stellate hairs. This inclusion of this species in section Gonatotrichum suggests that the simple, often geniculate hairs of species in the group may represent reduced stellate hairs. The presence of heterantherous flowers appears to be derived in the section, but this character is largely lost in S. parcistrigosum.

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DOI: 10.3897/phytokeys.8.2101

Authors: Eric Tepe, Glynis Ridley, Lynn Bohs

Abstract: We describe Solanum baretiae sp. nov., a new species of Solanum section Anarrhichomenum, named in honor of Jeanne Baret, who sailed as the assistant to botanist Philibert Commerson on Louis Antoine de Bougainville’s global circumnavigation (1766–1769). The species is similar to S. chimborazense, but differs inlarger flowers, more flowers per inflorescence, and different patterns of pubescence on the filaments (pubescent adaxially and glabrous abaxially) and style (papillose to sparsely pubescent). A description, illustration, photos, and comparisons to similar species are included. Also included is a preliminary conservation assessment, along with a brief account of the important role played by Baret during the expedition. The new species appears to be restricted to the Amotape-Huancabamba zone, an area of southern Ecuador and northern Peru known for its exceptional biodiversity.

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DOI: 10.3897/phytokeys.8.2462

Authors: Maria Vorontsova, Sandra Knapp

Abstract: A new andromonoecious species related to the eggplant and belonging to Solanum subgenus Leptostemonum from southern Africa is described. Solanum umtuma Voronts. & S.Knapp, sp. nov. is found in the eastern part of South Africa, and is sympatric with its close relative S. linnaeanum Hepper & P.M-L.Jaeger. It is morphologically very similar to S. cerasiferum Dunal of northern tropical Africa. A comparison table with similar and closely related species is provided, as are a distribution map and illustration of S. umtuma.

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DOI: 10.3897/phytokeys.7.1855

Authors: Leandro Giacomin, Joao Stehmann

Abstract: A new species of Solanum from Brazil is described. Solanum evolvuloides Giacomin & Stehmann sp. nov. belongs to section Gonatotrichum, a small group assigned to the Brevantherum Clade of the genus Solanum. It resembles S. turneroides Chodat, sharing with it heterandry, and S. parcistrigosum Bitter, with which it shares a similar habit and pubescence. Despite these similarities, the species can be recognized by its ovate-elliptic to cordiform leaf shape and more membranaceous leaf texture than the other species in the section, and stem, inflorescence axes, and calyx vestiture mainly composed of glandular hairs. Solanum evolvuloides is known to occur only in southeastern of Bahia state, Brazil, and in a preliminary assessment of the IUCN criteria can be considered a threatened species.

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DOI: 10.3897/phytokeys.2.730

Authors: Gloria Barboza

Abstract: Considerable confusion exists within Capsicum (Solanaceae) about the status and typification of several names, in part due to misidentification. In addition, some specimens that serve as types have never been found or were destroyed in Berlin during the Second World War while others exhibit uncertain locality data or are composed of plants belong to more than one species, and thus require lectotypification. Fourteen lectotypes, synonyms, and a new name are here proposed.

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DOI: 10.3897/phytokeys.1.661

Authors: Frank Farruggia, Lynn Bohs

Abstract: Two new species of Solanum section Crinitum are described here. Solanum falciforme Farruggia, sp. nov., closely resembles S. crinitum and S. lycocarpum, but differs by the presence of falcate trichomes on the young growth. It is endemic to the cerrado and adjacent woodlands of Distrito Federal, Bahia, Goiás and Minas Gerais, Brazil. The other species, Solanum pseudosycophanta Farruggia, sp.nov., has close affinities to S. sycophanta but differs from the latter inprominent long-stalked stellate hairs along the stem, calyx, petiole and the adaxial surface of the leaf, in contrast to S. sycophanta which is glabrous or pubescent with sessile to short-stalked multangulate hairs. This species is narrowly distributed in tropical montane forests of northern Peru and southern Ecuador.

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DOI: 10.3897/phytokeys.1.660

Authors: Stephen Stern, Lynn Bohs

Abstract: Two new species of Solanum subgenus Leptostemonum from southern Ecuador and northern Peru are described here. Solanum rubicaule S.Stern, sp. nov., is a member of sect. Torva and is characterized by a festooning, scandent growth form and fruits held horizontally on recurved pedicels. Solanum achorum S.Stern, sp. nov., is a member of sect. Erythrotrichum and is characterized by 4–12-flowered inflorescences, small seeds, and a small calyx. Both species are distributed in the Amotape-Huancabamba Zone of the Andes in northern Peru and southern Ecuador.

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DOI: 10.3897/phytokeys.1.659

Authors: Sandra Knapp

Abstract: Three new species of “non-spiny" Solanum are described from Peru and Ecuador, and a revised description for Solanum verecundum M.Nee is presented. Solanum kulliwaita S.Knapp, sp. nov. (Dulcamaroid clade) is endemic to the Department of Cuzco in southern Peru, and is most similar to the recently described Solanum sanchez-vegae S.Knapp of northern Peru. Solanum dillonii S.Knapp, sp. nov. (Brevantherum clade) is found in southern Ecuador and northern Peru in the Amotape-Huancabamba phytogeographic zone, and is morphologically similar to the widespread Solanum riparium Ruiz & Pav. Solanum oxapampense S.Knapp, sp. nov., (also of the Brevantherum clade) is endemic to the Oxapampa region (Department of Pasco) of central Peru, and is similar to and segregated from Solanum verecundum M.Nee of Peru and Ecuador. Complete descriptions, distributions and preliminary conservation assessments of all new species are given.

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