Latest Articles from PhytoKeys Latest 35 Articles from PhytoKeys https://phytokeys.pensoft.net/ Fri, 29 Mar 2024 01:23:36 +0200 Pensoft FeedCreator https://phytokeys.pensoft.net/i/logo.jpg Latest Articles from PhytoKeys https://phytokeys.pensoft.net/ Karyotype and genome size variation in Delphinium subg. Anthriscifolium (Ranunculaceae) https://phytokeys.pensoft.net/article/108841/ PhytoKeys 234: 145-165

DOI: 10.3897/phytokeys.234.108841

Authors: Xiao-Yu Luo, Tang-Jie Nie, Heng Liu, Xue-Fei Ding, Ying Huang, Chun-Ce Guo, Wen-Gen Zhang

Abstract: Five taxa of Delphinium subg. Anthriscifolium have been karyologically studied through chromosome counting, chromosomal measurement, and karyotype symmetry. Each taxon that we investigated has a basic chromosome number of x = 8, D. anthriscifolium var. savatieri, D. anthriscifolium var. majus, D. ecalcaratum, and D. callichromum were diploid with 2n = 16, while D. anthriscifolium var. anthriscifolium was tetraploid with 2n = 32. Monoploid chromosome sets of the investigated diploid taxa contained 1 metacentric chromosome, 3 submetacentric chromosomes, and 4 subtelocentric chromosomes. Higher interchromosomal asymmetry (CVCL) was present in D. ecalcaratum and D. callichromum than in other taxa. The highest levels of intrachromosomal asymmetry (MCA) and heterogeneity in centromere position (CVCI) were found in D. anthriscifolium var. majus. Diploid and tetraploid genome sizes varied by 3.02–3.92 pg and 6.04–6.60 pg, respectively. Karyotype and genome size of D. anthriscifolium var. savatieri, D. anthriscifolium var. majus, D. callichromum, and D. ecalcaratum were reported for the first time. Finally, based on cytological and morphological data, the classification of Delphinium anthriscifolium was revised.

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Research Article Wed, 18 Oct 2023 14:03:18 +0300
Typification of the name Ranunculus rionii (Ranunculaceae) https://phytokeys.pensoft.net/article/103309/ PhytoKeys 226: 159-166

DOI: 10.3897/phytokeys.226.103309

Authors: Zdeněk Kaplan, Sébastien Bétrisey, Vincent Sonnenwyl, Jacqueline Détraz-Méroz, Gregor Kozlowski

Abstract: Available information on the typification of the name Ranunculus rionii in the literature is scarce and misleading. Previously claimed type collections indicate Lagger as the collector, but the protologue discusses only the specimens collected by Rion. Original material for the name is identified, the locality of the type collection is specified, Lagger’s way of writing herbarium labels for his type specimens is described, the history of the discovery of R. rionii is reviewed, and the name is lectotypified.

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Short Communication Mon, 29 May 2023 16:07:35 +0300
The correct name for an Aquilegia (Ranunculaceae) hybrid of the parentage Aquilegia flavescens × A. formosa https://phytokeys.pensoft.net/article/99170/ PhytoKeys 220: 31-38

DOI: 10.3897/phytokeys.220.99170

Authors: Quentin C. B. Cronk

Abstract: Aquilegia × miniana (J.F.Macbr. & Payson) Cronk, hybr. & stat. nov. is the correct name for the hybrid Aquilegia flavescens S.Watson × A. formosa Fisch. & DC. var. formosa. In 1916 Payson and Macbride, while exploring the mountains of Idaho, found populations of Aquilegia that were pink in flower colour and appeared intermediate between the yellow-flowered A. flavescens and red-flowered A. formosa. They named these plants A. flavescens var. miniana J.F.Macbr. & Payson. There has been uncertainty over whether their type collections (in GH, RM, MO, US, E, CM, CAS, NY) do indeed represent hybrids or pink-flowered morphs of A. flavescens. Using a Wells diagram, the holotype (in the Gray Herbarium of Harvard University) is shown to be intermediate, allowing its identification as a clear hybrid. However, some of the isotype material is indistinguishable from A. flavescens. The holotype matches material from British Columbia that has been determined to be of hybrid origin using molecular and morphological data. A. flavescens var. miniana J.F.Macbr. & Payson is, therefore, an available name for the hybrid, which is here raised to the status of hybrid binomial.

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Short Communication Thu, 23 Feb 2023 11:39:43 +0200
Ranunculus luanchuanensis (Ranunculaceae), a new species from Henan, China https://phytokeys.pensoft.net/article/96799/ PhytoKeys 220: 17-29

DOI: 10.3897/phytokeys.220.96799

Authors: Wen-Qun Fei, Qiong Yuan, Qin-Er Yang

Abstract: Ranunculus luanchuanensis (Ranunculaceae), a new species from Laojun Shan in Luanchuan county, Henan province, central China, is here illustrated and described. It is morphologically similar to R. limprichtii in having 3-lobed and subreniform basal leaves, 3-lobed cauline leaves, and small flowers with reflexed and caducous sepals, but differs by having slender and basally slightly thickened roots (vs. fusiform), prostrate stems (vs. erect), obliquely ovoid and glabrous carpels and achenes (vs. widely ovoid and puberulous), longer styles in the carpels (ca. 1.2 mm vs. 0.6–0.8 mm) and achenes (ca. 1.8 mm vs. 0.6–0.8 mm), and glabrous receptacles (vs. sparsely puberulous). Ranunculus luanchuanensis, currently known only from its type locality, is geographically isolated from R. limprichtii, a species widely distributed in Gansu, Qinghai, Sichuan, Xizang (Tibet) and Yunnan, China. The distribution map of this new species and its putative closest ally, R. limprichtii, is also provided.

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Research Article Wed, 22 Feb 2023 16:55:09 +0200
Epimedium longnanense (Berberidaceae), a new species from Gansu, China https://phytokeys.pensoft.net/article/94275/ PhytoKeys 219: 97-106

DOI: 10.3897/phytokeys.219.94275

Authors: Jianhang Jiang, Ying Ji, Jianqiang Li, Yanjun Zhang

Abstract: Epimedium longnanense, a new species of Epimedium (Berberidaceae) from Longnan Prefecture, Gansu Province, China, is here proposed and illustrated. E. longnanense has large flowers with petals possessing long spur and obvious basal lamina, and thus should be grouped into series Davidianae. The species closely resembles E. flavum of ser. Davidianae in morphology. However, it can be easily distinguished by its elongated rhizome (vs. compact), trifoliolate leaves (vs. five leaflets, sometimes trifoliolate), pale pink or purplish-red inner sepals with 6–8 × 2–3 mm (vs. pale sulphur-yellow, ca. 11 × 4 mm).

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Research Article Wed, 8 Feb 2023 08:03:53 +0200
Ranunculus maoxianensis (Ranunculaceae), a new species from northwestern Sichuan, China, with an emended description of R. chongzhouensis, the putative closest ally of the new species https://phytokeys.pensoft.net/article/96510/ PhytoKeys 219: 77-96

DOI: 10.3897/phytokeys.219.96510

Authors: Wen-Qun Fei, Qiong Yuan, Qin-Er Yang

Abstract: Ranunculus maoxianensis (Ranunculaceae), a new species from Jiuding Shan in Maoxian county, northwestern Sichuan province, China, is here illustrated and described. The species is morphologically similar to R. chongzhouensis, a species also occurring in Sichuan, in having reniform leaves and puberulous receptacles, carpels and achenes, but differs by having leaves adaxially puberulous with shorter appressed hairs 0.16‒0.28 mm long (vs. longer appressed hairs 0.55‒0.85 mm long), larger flowers (1.8‒2 cm vs. 1.4‒1.6 cm in diameter), larger (8‒10 × 5.5‒6.5 mm vs. 6‒7 × 4.5‒5 mm) and widely obovate petals (vs. obovate), more numerous stamens (35‒55 vs. 12‒18), and subglobose gynoecium and aggregate fruit (vs. ellipsoid). The two species are also different in chromosome number and chromosome morphology. Ranunculus chongzhouensis has a karyotype of 2n = 2x = 16 = 10m + 6sm while R. maoxianensis has a karyotype of 2n = 4x = 32 = 16m + 16sm. An emended description of R. chongzhouensis is provided, and its geographical distribution is largely extended.

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Research Article Wed, 1 Feb 2023 10:33:40 +0200
Ranunculus jiguanshanicus (Ranunculaceae), a new species from Sichuan, China https://phytokeys.pensoft.net/article/96266/ PhytoKeys 219: 57-75

DOI: 10.3897/phytokeys.219.96266

Authors: Wen-Qun Fei, Qiong Yuan, Qin-Er Yang

Abstract: Ranunculus jiguanshanicus (Ranunculaceae), a new species from Chongzhou in Sichuan province, China, is here described and illustrated. The new species is easily distinguishable from other Chinese members of the genus by an array of characters, including small stature, glabrous and prostrate stems, 3-foliolate leaves with obvious petiolules (3–5 mm long), unequally 3-sected leaflets, lanceolate to linear ultimate leaflet segments, small flowers (5.2–6 mm in diameter), and long styles in the carpels and achenes (ca. 0.8 mm long). A distribution map of this new species is also provided.

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Research Article Wed, 25 Jan 2023 18:21:36 +0200
 Coptis huanjiangensis, a new species of Ranunculaceae from Guangxi, China https://phytokeys.pensoft.net/article/96546/ PhytoKeys 213: 131-141

DOI: 10.3897/phytokeys.213.96546

Authors: Yiheng Wang, Jiahui Sun, Jingyi Wang, Qiang Mao, Wenpan Dong, Qingjun Yuan, Lanping Guo, Luqi Huang

Abstract: Coptis huanjiangensis, a new species of Ranunculaceae distributed in the valleys of Jiuwanshan National Natural Reserve in Huanjiang county (Guangxi, China), is described and illustrated for the first time based on morphological and plastome sequences data. It differs from C. chinensis, C. deltoidei and C. omeiensis mainly by having notably longer petiole, scape, bigger leaf blade with lobes obviously remote and robust rhizomes without stolons. Phylogenetic analyses support that C. huanjiangensis is sister to C. omeiensis and C. deltoidei.

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Research Article Tue, 15 Nov 2022 17:44:37 +0200
A new species of Ranunculus (Ranunculaceae) from Western Pamir-Alay, Uzbekistan https://phytokeys.pensoft.net/article/70757/ PhytoKeys 193: 125-139

DOI: 10.3897/phytokeys.193.70757

Authors: Natalia V. Shchegoleva, Elena V. Nikitina, Inom J. Juramurodov, Andrei A. Zverev, Orzimat T. Turginov, Anvarbek M. Jabborov, Ziyoviddin Yusupov, Davron B. Dekhkonov, Tao Deng, Hang Sun

Abstract: New data on the phylogeny of four rare and endemic species of Ranunculus L. sect. Ranunculastrum DC. of western Pamir-Alai, one of which is new to science, have been obtained. Ranunculus tojibaevii sp. nov., from the Baysuntau Mountains, Western Hissar Range of Uzbekistan, is described. The new species is closely related to R. botschantzevii Ovcz., R. convexiusculus Kovalevsk. and R. alpigenus Kom., but differs in the blade of the radical leaves, which is rounded-reniform, segments 3–5-dissected, each 2–5-partite with elongated, rounded apical lobes. A phylogenetic analysis, using both the nuclear ribosomal internal transcribed spacer (ITS) and cpDNA (matK, rbcL, trnL-trnF), was informative in placing R. tojibaevii in context with its most closely-related species. Discussion on the geographic distribution, updated identification key, a detailed description, insights about its habitat and illustrations are provided.

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Review Article Fri, 1 Apr 2022 13:11:37 +0300
Karyotype and genome size variation in white-flowered Eranthis sect. Shibateranthis (Ranunculaceae) https://phytokeys.pensoft.net/article/75715/ PhytoKeys 187: 207-227

DOI: 10.3897/phytokeys.187.75715

Authors: Elizaveta Yu. Mitrenina, Andrey S. Erst, Lorenzo Peruzzi, Mikhail V. Skaptsov, Hiroshi Ikeda, Vyacheslav Yu. Nikulin, Wei Wang

Abstract: Comparative karyomorphological analyses of six out of the eight white-flowered species of Eranthis sect. Shibateranthis have been carried out. All studied specimens of E. byunsanensis, E. lobulata, E. pinnatifida, and E. stellata had a somatic chromosome number 2n = 16 with basic chromosome number x = 8. On the contrary, E. tanhoensis and E. sibirica had a basic chromosome number x = 7. The specimens of E. tanhoensis were diploid with 2n = 14, while the specimens of E. sibirica were polyploid with 2n = 42. Monoploid chromosome sets of the investigated diploid species had 4–5 metacentric chromosomes and 2–4 submetacentric/subtelocentric/acrocentric chromosomes. The highest level of interchromosomal asymmetry, estimated via CVCL, was found in E. byunsanensis and E. pinnatifida. The highest levels of intrachromosomal asymmetry (MCA) and heterogeneity in centromere position (CVCI) were found in E. lobulata and E. byunsanensis, while E. sibirica had the most symmetric karyotype. A multivariate PCoA analysis of basic karyotype parameters (2n, x, THL, CVCL, MCA, and CVCI) highlighted no overlap among species accessions, which was also confirmed by LDA. The average absolute monoploid DNA content (1Cx) of the 23 investigated samples of six Eranthis species varied from 9.26 ± 0.25 pg in E. sibirica to 15.93 ± 0.32 pg in E. stellata. Overall karyological affinity was highlighted between E. lobulata and E. stellata, on one side, and between E. byunsanensis and E. pinnatifida, on the other side. Interestingly, there was no significant correlation between total haploid (monoploid) chromosome length (THL) and 1Cx values in these species.

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Research Article Fri, 31 Dec 2021 09:15:51 +0200
Nomenclatural revision of Delphinium subg. Consolida (DC.) Huth (Ranunculaceae) https://phytokeys.pensoft.net/article/67126/ PhytoKeys 180: 81-110

DOI: 10.3897/phytokeys.180.67126

Authors: Pierre-Emmanuel DuPasquier, Véronique Andro-Durand, Lucas Batory, Wei Wang, Florian Jabbour

Abstract: Recent molecular phylogenetic studies have indicated that Aconitella is embedded in Consolida, which in turn is embedded in Delphinium. We choose not to split the genus Delphinium (c. 300 species), as it is horticulturally and pharmaceutically important, by conserving a broad Delphinium by transferring the names from Consolida and Aconitella to Delphinium s.lat., and more precisely in the resurrected D. subg. Consolida. Including 58 species of Aconitella and Consolida within Delphinium causes fewer nomenclatural overall changes than do alternative schemes because most of the species of Aconitella and Consolida were once named under the name Delphinium. We present here the list of synonyms for the species once named under Consolida or Aconitella and gather the information relative to the types of these names. Two new combinations are provided, and 21 lectotypes are designated here.

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Research Article Thu, 5 Aug 2021 13:53:17 +0300
Phylogenetic relationships and status of taxa of Pulsatilla uralensis and P. patens s.str. (Ranunculaceae) in north-eastern European Russia https://phytokeys.pensoft.net/article/53361/ PhytoKeys 162: 113-130

DOI: 10.3897/phytokeys.162.53361

Authors: Olga E. Valuyskikh, Ludmila V. Teteryuk, Yana I. Pylina, Oleg E. Sushentsov, Nikita A. Martynenko, Dmitry M. Shadrin

Abstract: We studied the allopatric complex Pulsatilla patens (L.) Mill. s.lat. (Ranunculaceae) in north-eastern European Russia and the Urals. In this region, there are two kinds of P. patens with different perianth colours in monochrome and polychrome populations. To clarify their taxonomic boundaries, we used the sequences of chloroplast DNA (rbcL and matK) and nuclear DNA (ITS2), in addition to morphological characteristics. The combination of three markers (rbcL+matK+ITS2) was found to be the most effective for phylogenetic resolution. The samples of two morphologically-different taxa P. uralensis and P. patents s.str. were shown to form a single clade on the phylogenetic tree. Based on the molecular phylogenetic analysis, we were not able to unequivocally prove the independent existence of P. uralensis.

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Research Article Fri, 9 Oct 2020 10:35:00 +0300
Cluster analysis of karyotype similarity coefficients in Epimedium (Berberidaceae): insights in the systematics and evolution https://phytokeys.pensoft.net/article/51046/ PhytoKeys 161: 11-26

DOI: 10.3897/phytokeys.161.51046

Authors: Lin-Jiao Wang, Meng-Di Gao, Mao-Yin Sheng, Jie Yin

Abstract: In order to evaluate the genome evolution and systematics, karyotype analysis of mitotic metaphase chromosomes in 51 taxa of Epimedium and two species of Vancouveria was conducted. The 53 taxa were clustered, based on their karyotype similarity coefficients. Results showed that the 53 taxa studied were all diploid with 12 chromosomes (2n = 2x = 12). Each taxon had one pair of satellites located on pair I of homologous chromosomes. Moreover, the karyotype types of the 53 taxa studied were all type 1A or 2A of Stebbins. It can be concluded that the karyotypes between species are indeed very similar and the genome of Epimedium was conservative in evolution. The cluster analysis of karyotype similarity coefficients could provide valuable clues for the systematics and taxonomy of Epimedium. Results of the cluster analysis strongly supported the previous taxonomic division of E. subg. Rhizophyllum and E. subg. Epimedium. The results also showed that the interspecific relationship was closely correlated with geographical distribution in E. subg. Epimedium and the taxa native to east Asia had the highest genetic diversity in Epimedium. Finally, the origin of the modern geographical distribution of Epimedium was inferred. Results of the present study have significant scientific values in further studies on resource utilisation, taxonomy and phylogeny in Epimedium.

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Research Article Tue, 15 Sep 2020 10:59:04 +0300
An integrative taxonomic approach reveals a new species of Eranthis (Ranunculaceae) in North Asia https://phytokeys.pensoft.net/article/49048/ PhytoKeys 140: 75-100

DOI: 10.3897/phytokeys.140.49048

Authors: Andrey S. Erst, Alexander P. Sukhorukov, Elizaveta Yu. Mitrenina, Mikhail V. Skaptsov, Vera A. Kostikova, Olga A. Chernisheva, Victoria Troshkina, Maria Kushunina, Denis A. Krivenko, Hiroshi Ikeda, Kunli Xiang, Wei Wang

Abstract: A new endemic species, Eranthis tanhoensis sp. nov., is described from the Republic of Buryatia and Irkutsk Province, Russia. It belongs to Eranthis section Shibateranthis and is morphologically similar to E. sibirica and E. stellata. An integrative taxonomic approach, based on cytogenetical, molecular and biochemical analyses, along with morphological data, was used to delimit this new species.

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Research Article Wed, 4 Mar 2020 11:14:08 +0200
Clematis guniuensis (Ranunculaceae), a new species from Eastern China https://phytokeys.pensoft.net/article/33891/ PhytoKeys 128: 47-55

DOI: 10.3897/phytokeys.128.33891

Authors: Rong-Bin Wang, Wei-Yong Ni, Wen-Jing Xu, Zheng-Wen Gui, Shou-Biao Zhou

Abstract: Clematis guniuensis sp. nov., a new narrowly endemic species of Clematis, is described and illustrated from the Huangshan Mountains of Eastern China. A description of C. guniuensis is presented along with illustrations, photographs and diagnostic differences between the new species and its putative close allies.

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Research Article Tue, 23 Jul 2019 11:24:20 +0300
Dysosma villosa (Berberidaceae), a new species from Guizhou, Southwestern China https://phytokeys.pensoft.net/article/34435/ PhytoKeys 124: 77-85

DOI: 10.3897/phytokeys.124.34435

Authors: Zhiwei Wang, Wenguang Sun, Houcheng Xi, Shuai Chang

Abstract: A new species, Dysosma villosa Z.W.Wang & H.C.Xi, is described and illustrated based on collections from the Yueliang Mountains in Congjiang County of Guizhou, Southwestern China. It is morphologically similar to D. difformis (Hemsl. & E.H.Wilson) T.H.Wang ex T.S.Ying, but can be easily distinguished from D. difformis by its inflorescences bearing a greater number of flowers (5–13 vs. 2–5), white-villous stems, petioles, and abaxial leaf blade, and stigma dark purple-red. In addition, we also compare this new species to the three species of Podophyllum (i.e., P. glaucescens J.M.H.Shaw, P. hemsleyi J.M.H.Shaw & Stearn, and P. trilobulum J.M.H.Shaw) which are insufficiently known and listed as putative members of Dysosma in Flora of China. Dysosma villosa can also be easily distinguished from P. glaucescens (7-flowered; to 40 cm tall) and P. hemsleyi (4-flowered; to 40 cm tall) by its inflorescences bearing a greater number of flowers, relatively smaller stature (9–23 cm tall), stems, petioles and abaxial leaf blade densely white-villose. Although the stems and petioles of P. trilobulum also possess fine short hairs, it can be easily distinguished from D. villosa by its trilobulate leaves, inflorescence with fewer flowers (2–5), and the position of inflorescence (inserted at or above midpoint on petiole of upper leaf).

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Research Article Fri, 21 Jun 2019 10:28:49 +0300
The taxonomic relevance of flower colour for Epimedium (Berberidaceae), with morphological and nomenclatural notes for five species from China https://phytokeys.pensoft.net/article/30268/ PhytoKeys 118: 33-64

DOI: 10.3897/phytokeys.118.30268

Authors: Yanqin Xu, Linjian Liu, Shaoxiong Liu, Yiming He, Renqing Li, Fei Ge

Abstract: Morphological variations, particularly flower colour, could be considered as an evolutionarily and ornamentally significant taxonomic criterion for Epimedium. Our extensive field investigation based on population studies revealed abundant intraspecific variations in flower colour. Five species, (i.e., E. acuminatum Franch., E. leptorrhizum Stearn, E. pauciflorum K.C.Yen, E. mikinorii Stearn, and E. glandulosopilosum H.R.Liang) were found to possess polymorphic flower colour, which is first described and illustrated here. Moreover, all these species were found to be polymorphic in other diagnostic characters, such as the type of rhizome, the number and arrangement of stem-leaves, and/or their indumentum, which have not been adequately described in previous studies. Therefore, their morphological descriptions have been complemented and/or revised. We also provide notes on the morphology and nomenclature for each species. Additionally, a key to the species in China has been provided. The present study could serve as a basis for understanding their taxonomy and helping their utilisation as an ornamental plant.

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Research Article Wed, 27 Feb 2019 11:38:16 +0200
Clematis mae (Ranunculaceae), a new species of C. sect. Meclatis from Xinjiang, China https://phytokeys.pensoft.net/article/31854/ PhytoKeys 117: 133-142

DOI: 10.3897/phytokeys.117.31854

Authors: Jian He, Ru-Dan Lyu, Min Yao, Lei Xie, Zong-Zong Yang

Abstract: Clematis mae Z.Z.Yang & L.Xie, a new species of Ranunculaceae from Xinjiang, China, is described and illustrated. The new species is morphologically similar to C. orientalis and C. glauca but can be distinguished for being a less hairy plant (hairy in C. orientalis), often 2-ternate leaves (1–2-pinnate for C. orientalis and C. glauca), lanceolate to linear-lanceolate leaflets (elliptic or ovate in C. glauca), larger flowers (smaller flower in C. orientalis) and narrowly lanceolate sepals with acute to slightly attenuate apex (narrowly oblong sepals in C. orientalis and ovate to broadly lanceolate sepals in C. glauca). The new species is endemic to the southern slope of North Tianshan Mountain in Central Xinjiang. The conservation status of the species is also discussed.

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Research Article Thu, 14 Feb 2019 11:38:04 +0200
Trollius austrosibiricus (Ranunculaceae), a new species from South Siberia https://phytokeys.pensoft.net/article/30863/ PhytoKeys 115: 83-92

DOI: 10.3897/phytokeys.115.30863

Authors: Andrey Erst, Alexander Luferov, Victoria Troshkina, Dmitry Shaulo, Alexander Kuznetsov, Kunli Xiang, Wei Wang

Abstract: Trollius austrosibiricus Erst & Luferov, sp. nov., a new species from Russian South Siberia is described and illustrated. This new species is endemic to Western and Central Siberia. Morphologically, it is close to the East Asian species T. chinensis and T. macropetalus. However, it differs from the aforementioned species due to the morphology of the rhizomes, aerial shoots, sepals and petals. This species is also distinguished from T. asiaticus, which is widespread in Russia (Western and Eastern Siberia), Mongolia, China, north-eastern Kazakhstan and in the northeast of the European part of Russia, in having a smaller number of sepals, longer persistent styles and petals longer than sepals. In addition, an identification key for all Russian species is given and all species have been discussed.

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Research Article Mon, 28 Jan 2019 11:06:36 +0200
A taxonomic revision of Curarea Barneby & Krukoff (Menispermaceae) https://phytokeys.pensoft.net/article/21828/ PhytoKeys 100: 9-89

DOI: 10.3897/phytokeys.100.21828

Authors: Rosa del C. Ortiz

Abstract: A monograph of Curarea, a neotropical genus in the plant family Menispermaceae, is presented. Curarea is distinguished from related genera by the combination of staminate flowers with sepals in two whorls and pistillate flowers with three petals, three carpels and usually elongated carpophores bearing three sessile drupelets. Nine species are recognised, amongst them two new to science, C. gentryana from Ecuador and C. barnebyana, from Ecuador and Peru. Additionally, two new combinations, C. iquitana and C. tomentocarpa, are proposed for distinct taxa recovered in a multivariate analysis of quantitative characters of the broadly distributed and morphologically variable C. toxicofera. The anatomy and morphology of species in the genus is documented, identification key, species descriptions, distribution maps and a preliminary conservation assessment for all accepted species are also provided. Of the nine species recognised here, C. barnebyana is assigned a preliminary status of Vulnerable, C. crassa (known only from the coastal Atlantic Forest in Brazil) and C. gentryana (endemic to western Ecuador) are both assigned a preliminary status of Endangered.

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Monograph Thu, 21 Jun 2018 10:27:10 +0300
Anemonastrum tenuicaule and A. antucense (Ranunculaceae), new combinations for a New Zealand endemic species and its South American relative https://phytokeys.pensoft.net/article/26489/ PhytoKeys 99: 107-124

DOI: 10.3897/phytokeys.99.26489

Authors: Sergei L. Mosyakin, Peter J. de Lange

Abstract: A rational taxonomic circumscription of genera in tribe Anemoneae (Ranunculaceae) is briefly discussed. It is concluded that, in view of the morphological diversity of the group and recent molecular phylogenetic findings, a moderately narrow approach to the re-circumscription of genera earlier included in Anemone sensu lato is preferable, in particular, with the recognition of the lineage with the base chromosome number x = 7 (Anemone subgen. Anemonidium) as two genera, Hepatica sensu stricto and Anemonastrum in an expanded circumscription (including Anemonidium, Arsenjevia, Jurtsevia, and Tamuria). Following these conclusions, new nomenclatural combinations are proposed for two related species endemic to New Zealand and South America, respectively: Anemonastrum tenuicaule (= Anemone tenuicaulis, Ranunculus tenuicaulis) and Anemonastrum antucense (= Anemone antucensis). Information on typification is updated: the lectotype of Anemone antucensis is the specimen from P and not a specimen from G, and the lectotype of Ranunculus tenuicaulis is a specimen from AK. Biogeographic scenarios already proposed to explain the relationship of these two species and some other South America – New Zealand distribution patterns are discussed. It is concluded that the long-distance dispersal scenario fits best the available data for Anemonastrum. Two host-specific and geographically restricted species of Urosystis parasitizing A. tenuicaule and A. antucense are briefly discussed.

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Research Article Wed, 30 May 2018 10:52:17 +0300
Semiaquilegia quelpaertensis (Ranunculaceae), a new species from the Republic of Korea https://phytokeys.pensoft.net/article/21004/ PhytoKeys 89: 107-113

DOI: 10.3897/phytokeys.89.21004

Authors: Dong Chan Son, Keum Seon Jeong, Kang-Hyup Lee, Heesoo Kim, Kae Sun Chang

Abstract: Semiaquilegia quelpaertensis sp. nov., a new species belonging to the family Ranunculaceae, from Hallasan National Park in Jeju-do, Republic of Korea, is described and illustrated. The new species is similar to Semiaquilegia adoxoides (DC.) Makino, but can be readily distinguished by a thick underground stem, shallowly lobed leaflets, larger flowers, (4–)6 staminodes and conspicuously rugose tuberculate seed surface.

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Research Article Thu, 9 Nov 2017 11:45:42 +0200
Melicope stonei, section Pelea (Rutaceae), a new species from Kaua‘i, Hawaiian Islands: with notes on its distribution, ecology, conservation status, and phylogenetic placement https://phytokeys.pensoft.net/article/13442/ PhytoKeys 83: 119-132

DOI: 10.3897/phytokeys.83.13442

Authors: Kenneth R. Wood, Marc S. Appelhans, Warren L. Wagner

Abstract: Melicope stonei K.R. Wood, Appelhans & W.L. Wagner (section Pelea, Rutaceae), a new endemic tree species from Kaua‘i, Hawaiian Islands, is described and illustrated with notes on its distribution, ecology, conservation status, and phylogenetic placement. The new species differs from its Hawaiian congeners by its unique combination of distinct carpels and ramiflorous inflorescences arising on stems below the leaves; plants monoecious; leaf blades (5–)8–30 × (4–)6–11 cm, with abaxial surface densely tomentose, especially along midribs; and very long petioles of up to 9 cm. Since its discovery in 1988, 94 individuals have been documented and are confined to a 1.5 km2 region of unique high canopy mesic forest. Melicope stonei represents a new Critically Endangered (CR) single island endemic species on Kaua‘i.

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Research Article Thu, 3 Aug 2017 09:49:41 +0300
A taxonomic revision of three Chinese spurless species of genus Epimedium L. (Berberidaceae) https://phytokeys.pensoft.net/article/11640/ PhytoKeys 78: 23-36

DOI: 10.3897/phytokeys.78.11640

Authors: Shaoxiong Liu, Linjian Liu, Xiaofang Huang, Yuye Zhu, Yanqin Xu

Abstract: Due to some common or similar features (e.g., small leaf, spurless, yellow flower), three Chinese species of the genus Epimedium (Berberidaceae), E. ecalcaratum, E. platypetalum, and E. campanulatum, are controversial based on morphological characteristics. In the present study, the descriptions of morphological characteristics for the three species were revised based on extensive studies and observations both in field and in herbaria. In general, E. ecalcaratum has long creeping rhizomes 1–3 mm in diameter, two alternate or opposite trifoliolate leaves, 7–14 flowers, and petals obovate and apex subacute. Epimedium platypetalum has short or long-creeping rhizomes 1–3 mm in diameter, one trifoliolate leaf, 2–6 flowers, and petals oblong and apex rounded. Epimedium campanulatum has compact rhizomes 4–6 mm in diameter, two alternate or opposite trifoliolate leaves, 15–43 flowers, and petals obovate and apex rounded. Through comparison, we found that despite the close affinity of these three species, they can be distinguished by rhizome differences, stem-leaves, the morphology of flower (e.g., petals), and the number of per inflorenscence.

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Research Article Thu, 23 Mar 2017 11:03:37 +0200
Five new synonyms in Epimedium (Berberidaceae) from China https://phytokeys.pensoft.net/article/5153/ PhytoKeys 49: 1-12

DOI: 10.3897/phytokeys.49.8768

Authors: Yanjun Zhang, Haishan Dang, Shengyu Li, Jianqiang Li, Ying Wang

Abstract: Five new synonyms in Chinese Epimedium are designated in the present paper. Epimedium chlorandrum is treated as a synonym of E. acuminatum; Epimedium rhizomatosum as a synonym of E. membranaceum; Epimedium brachyrrhizum as a synonym of E. leptorrhizum; Epimedium dewuense as a synonym of E. dolichostemon; and Epimedium sagittatum var. oblongifoliolatum as a synonym of E. borealiguizhouense.

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Research Article Wed, 22 Apr 2015 00:00:00 +0300
Plant endemism in the Sierras of Córdoba and San Luis (Argentina): understanding links between phylogeny and regional biogeographical patterns1 https://phytokeys.pensoft.net/article/4899/ PhytoKeys 47: 59-96

DOI: 10.3897/phytokeys.47.8347

Authors: Jorge O. Chiapella, Pablo H. Demaio

Abstract: We compiled a checklist with all known endemic plants occurring in the Sierras of Córdoba and San Luis, an isolated mountainous range located in central Argentina. In order to obtain a better understanding of the evolutionary history, relationships and age of the regional flora, we gathered basic information on the biogeographical and floristic affinities of the endemics, and documented the inclusion of each taxon in molecular phylogenies. We listed 89 taxa (including 69 species and 20 infraspecific taxa) belonging to 53 genera and 29 families. The endemics are not distributed evenly, being more abundant in the lower than in the middle and upper vegetation belts. Thirty-two genera (60.3%) have been included in phylogenetic analyses, but only ten (18.8%) included local endemic taxa. A total of 28 endemic taxa of the Sierras CSL have a clear relationship with a widespread species of the same genus, or with one found close to the area. Available phylogenies for some taxa show divergence times between 7.0 – 1.8 Ma; all endemic taxa are most probably neoendemics sensu Stebbins and Major. Our analysis was specifically aimed at a particular geographic area, but the approach of analyzing phylogenetic patterns together with floristic or biogeographical relationships of the endemic taxa of an area, delimited by clear geomorphological features, could reveal evolutionary trends shaping the area.

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Checklist Tue, 17 Mar 2015 00:00:00 +0200
A new species of Cissampelos (Menispermaceae) from Bolivia and Paraguay https://phytokeys.pensoft.net/article/1529/ PhytoKeys 38: 89-99

DOI: 10.3897/phytokeys.38.6504

Authors: Rosa Ortiz, Michael Nee

Abstract: The new species Cissampelos arenicola M. Nee & R. Ortiz, from the Bolivian and Paraguayan Chaco is described, its affinities are discussed, and its preliminary conservation status is evaluated. The species is at present known from 13 collections from sand dunes or dry forests. Cissampelos arenicola is distinguished from all other American species in the genus by its ovate- to subreniform-trilobed leaves, 8-locular synandria, and relatively large, and scarcely ornamented endocarps. The most common perianth condition in the pistillate flowers of Cissampelos is one sepal and one antesepalous petal, and while these may vary in number, they are always found adaxial to the carpel, and although the southern African taxon called Cissampelos capensis, whose generic position is uncertain, superficially resembles Cissampelos arenicola, its sepals and petals are consistently lateral to the carpel and not adaxial.

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Research Article Wed, 4 Jun 2014 00:00:00 +0300
URJC GB dataset: Community-based seed bank of Mediterranean high-mountain and semi-arid plant species at Universidad Rey Juan Carlos (Spain) https://phytokeys.pensoft.net/article/1515/ PhytoKeys 35: 57-72

DOI: 10.3897/phytokeys.35.6746

Authors: Patricia Alonso, Jose Maria Iriondo

Abstract: The Germplasm Bank of Universidad Rey Juan Carlos was created in 2008 and currently holds 235 accessions and 96 species. This bank focuses on the conservation of wild-plant communities and aims to conserve ex situ a representative sample of the plant biodiversity present in a habitat, emphasizing priority ecosystems identified by the Habitats Directive. It is also used to store plant material for research and teaching purposes. The collection consists of three subcollections, two representative of typical habitats in the center of the Iberian Peninsula: high-mountain pastures (psicroxerophylous pastures) and semi-arid habitats (gypsophylic steppes), and a third representative of the genus Lupinus. The high-mountain subcollection currently holds 153 accessions (63 species), the semi-arid subcollection has 76 accessions (29 species,) and the Lupinus subcollection has 6 accessions (4 species). All accessions are stored in a freezer at -18 °C in Kilner jars with silica gel. The Germplasm Bank of Universidad Rey Juan Carlos follows a quality control protocol which describes the workflow performed with seeds from seed collection to storage. All collectors are members of research groups with great experience in species identification. Herbarium specimens associated with seed accessions are preserved and 63% of the records have been georreferenced with GPS and radio points. The dataset provides unique information concerning the location of populations of plant species that form part of the psicroxerophylous pastures and gypsophylic steppes of Central Spain as well as populations of genus Lupinus in the Iberian Peninsula. It also provides relevant information concerning mean seed weight and seed germination values under specific incubation conditions. This dataset has already been used by researchers of the Area of Biodiversity and Conservation of URJC as a source of information for the design and implementation of experimental designs in these plant communities. Since they are all active subcollections in continuous growth, data is updated regularly every six months and the latest version can be accessed through the GBIF data portal at http://www.gbif.es:8080/ipt/resource.do?r=germoplasma-urjc. This paper describes the URJC Germplasm Bank and its associated dataset with the aim of disseminating the dataset and explaining how it was derived.

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Data Paper Tue, 25 Mar 2014 00:00:00 +0200
Two new desert Eschscholzia (Papaveraceae) from southwestern North America https://phytokeys.pensoft.net/article/1516/ PhytoKeys 35: 45-56

DOI: 10.3897/phytokeys.35.6751

Authors: Shannon Still

Abstract: Two new species of Eschscholzia are described. Both are found in the deserts of California and one extends outside the state boundary into Arizona. Eschscholzia androuxii Still, sp.nov. is found mainly in and around Joshua Tree National Park in Riverside and San Bernardino counties. Eschscholzia papastillii Still, sp. nov. is found from the northern Mojave south through Joshua Tree National Park to central Imperial County. Both are annuals found in coarse, sandy soil and have yellow flowers typical of desert Eschscholzia. Eschscholzia papastillii has an expanded receptacular rim similar to that of E. californica. Eschscholzia androuxii has anthocyanin bands around the stamen filaments.

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Research Article Tue, 11 Mar 2014 00:00:00 +0200
Database of Vascular Plants of Canada (VASCAN): a community contributed taxonomic checklist of all vascular plants of Canada, Saint Pierre and Miquelon, and Greenland https://phytokeys.pensoft.net/article/1551/ PhytoKeys 25: 55-67

DOI: 10.3897/phytokeys.25.3100

Authors: Peter Desmet, Luc Brouilet

Abstract: The Database of Vascular Plants of Canada or VASCAN (http://data.canadensys.net/vascan) is a comprehensive and curated checklist of all vascular plants reported in Canada, Greenland (Denmark), and Saint Pierre and Miquelon (France). VASCAN was developed at the Université de Montréal Biodiversity Centre and is maintained by a group of editors and contributors. For every core taxon in the checklist (species, subspecies, or variety), VASCAN provides the accepted scientific name, the accepted French and English vernacular names, and their synonyms/alternatives in Canada, as well as the distribution status (native, introduced, ephemeral, excluded, extirpated, doubtful or absent) of the plant for each province or territory, and the habit (tree, shrub, herb and/or vine) of the plant in Canada. For reported hybrids (nothotaxa or hybrid formulas) VASCAN also provides the hybrid parents, except if the parents of the hybrid do not occur in Canada. All taxa are linked to a classification. VASCAN refers to a source for all name, classification and distribution information.All data have been released to the public domain under a CC0 waiver and are available through Canadensys and the Global Biodiversity Information Facility (GBIF). VASCAN is a service to the scientific community and the general public, including administrations, companies, and non-governmental organizations.

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Data Paper Wed, 24 Jul 2013 00:00:00 +0300
First instalment in resolution of the Banksia spinulosa complex (Proteaceae): B. neoanglica, a new species supported by phenetic analysis, ecology and geography https://phytokeys.pensoft.net/article/1428/ PhytoKeys 14: 57-80

DOI: 10.3897/phytokeys.14.3415

Authors: Margaret Stimpson, Peter Weston, Ian Telford, Jeremy Bruhl

Abstract: Taxa in the Banksia spinulosa Sm. complex (Proteaceae) have populations with sympatric, parapatric and allopatric distributions and unclear or disputed boundaries. Our hypothesis is that under biological, phenetic and diagnosable species concepts that each of the currently named taxa within the B. spinulosa complex is a separate species. Based on specimens collected as part of this study, and data recorded from specimens in six Australian herbaria, complemented by phenetic analysis (semi–strong multidimensional scaling and UPGMA clustering) and a detailed morphological study, we investigated both morphological variation and geographic distribution in the B. spinulosa complex. All specimens used for this study are held at the N.C.W. Beadle Herbarium or the National Herbarium of New South Wales. In total 23 morphological characters (11 quantitative, five binary, and seven multistate characters) were analysed phenetically for 89 specimens. Ordination and cluster analysis resulted in individuals grouping strongly allowing recognition of distinct groups consistent with their recognition as separate species. Additional morphological analysis was completed on all specimens using leaf, floral, fruit and stem morphology, providing clear cut diagnosable groups and strong support for the recognition of B. spinulosa var. cunninghamii and B. spinulosa var. neoanglica as species.

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Research Article Fri, 3 Aug 2012 00:00:00 +0300
A new species of Roupala (Proteaceae) from Central Brazil https://phytokeys.pensoft.net/article/1427/ PhytoKeys 13: 1-4

DOI: 10.3897/phytokeys.13.2836

Authors: Ghillean Prance

Abstract: A new species of Roupala, R. gertii from the endangered Atlantic coastal forests of Brazil is described and illustrated.

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Research Article Mon, 28 May 2012 00:00:00 +0300
Florabank1: a grid-based database on vascular plant distribution in the northern part of Belgium (Flanders and the Brussels Capital region) https://phytokeys.pensoft.net/article/1417/ PhytoKeys 12: 59-67

DOI: 10.3897/phytokeys.12.2849

Authors: Wouter Van Landuyt, Leo Vanhecke, Dimitri Brosens

Abstract: Florabank1 is a database that contains distributional data on the wild flora (indigenous species, archeophytes and naturalised aliens) of Flanders and the Brussels Capital Region. It holds about 3 million records of vascular plants, dating from 1800 till present. Furthermore, it includes ecological data on vascular plant species, redlist category information, Ellenberg values, legal status, global distribution, seed bank etc. The database is an initiative of “Flo.Wer” (www.plantenwerkgroep.be), the Research Institute for Nature and Forest (INBO: www.inbo.be) and the National Botanic Garden of Belgium (www.br.fgov.be). Florabank aims at centralizing botanical distribution data gathered by both professional and amateur botanists and to make these data available to the benefit of nature conservation, policy and scientific research.The occurrence data contained in Florabank1 are extracted from checklists, literature and herbarium specimen information. Of survey lists, the locality name (verbatimLocality), species name, observation date and IFBL square code, the grid system used for plant mapping in Belgium (Van Rompaey 1943), is recorded. For records dating from the period 1972–2004 all pertinent botanical journals dealing with Belgian flora were systematically screened. Analysis of herbarium specimens in the collection of the National Botanic Garden of Belgium, the University of Ghent and the University of Liège provided interesting distribution knowledge concerning rare species, this information is also included in Florabank1. The data recorded before 1972 is available through the Belgian GBIF node (http://data.gbif.org/datasets/resource/10969/), not through FLORABANK1, to avoid duplication of information. A dedicated portal providing access to all published Belgian IFBL records at this moment is available at: http://projects.biodiversity.be/ifblAll data in Florabank1 is georeferenced. Every record holds the decimal centroid coordinates of the IFBL square containing the observation. The uncertainty radius is the smallest circle possible covering the whole IFBL square, which can measure 1 Km² or 4 Km². Florabank is a work in progress and new occurrences are added as they become available; the dataset will be updated through GBIF on a regularly base.

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Data Paper Wed, 16 May 2012 00:00:00 +0300
Checklist of vascular plants of the Department of Ñeembucú, Paraguay https://phytokeys.pensoft.net/article/1406/ PhytoKeys 9: 15-179

DOI: 10.3897/phytokeys.9.2279

Authors: Juana De Egea, Maria Pena-Chocarro, Cristina Espada, Sandra Knapp

Abstract: The Department of Ñeembucú is one of the least well-documented areas of eastern Paraguay, and the flora is composed of a mixture of forest and Chaco elements. Regions like Ñeembucú are often considered of lower diversity and interest that more forested regions; this results from both actual species richness figures and from under-collecting due to perception as uninteresting. We present here a checklist of the vascular plants of Ñeembucú, which includes 676 taxa (including subspecies and varieties) in 100 families and 374 genera. Four hundred and fifty seven (457) of these are new records for Ñeembucú and of these, 4 are new published records for Paraguay. Synonyms, distribution details within Paraguay and a voucher specimen or literature record are provided for each taxon, and a brief analysis of the diversity and importance of the flora is presented.

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Checklist Mon, 30 Jan 2012 00:00:00 +0200
Resurrection of the genus Staphisagria J. Hill, sister to all the other Delphinieae (Ranunculaceae) https://phytokeys.pensoft.net/article/1397/ PhytoKeys 7: 21-26

DOI: 10.3897/phytokeys.7.2010

Authors: Florian Jabbour, Susanne Renner

Abstract: Molecular sequence data show that the three species of Delphinium subg. Staphisagria (J. Hill) Peterm. form the sister clade to Aconitum L., Aconitella Spach, Consolida (DC.) S.F. Gray, and all remaining species of Delphinium L. To account for this finding we resurrect Staphisagria J. Hill (1756). Names in Staphisagria are available for two of the species. We here make the required new combination for the third species, Staphisagria picta (Willd.) F. Jabbour, provide a key to the species, and illustrate one of them.

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Research Article Tue, 29 Nov 2011 00:00:00 +0200