Data Paper |
Corresponding author: Raoufou Radji ( pradji@univ-lome.tg ) Academic editor: Thomas L.P. Couvreur
© 2018 Raoufou Radji, Kossi Adjonou, Marie-Luce Akossiwoa Quashie, Komlan Edjèdu Sodjinou, Francisco Pando, Kouami Kokou.
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Citation:
Radji R, Adjonou K, Quashie MLA, Sodjinou KE, Pando F, Kokou K (2018) Togo National Herbarium database. PhytoKeys 109: 1-16. https://doi.org/10.3897/phytokeys.109.25385
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This article describes the herbarium database of the University of Lomé. The database provides a good representation of the current knowledge of the flora of Togo. The herbarium of University of Lomé, known also as Herbarium togoense is the national herbarium and is registered in Index Herbariorum with the abbreviation TOGO. It contains 15,000 specimens of vascular plants coming mostly from all Togo's ecofloristic regions. Less than one percent of the specimens are from neighbouring countries such as Ghana, Benin and Burkina Faso. Collecting site details are specified in more that 97% of the sheet labels, but only about 50% contain geographic coordinates. Besides being a research resource, the herbarium constitutes an educational collection. The dataset described in this paper is registered with GBIF and accessible at https://www.gbif.org/dataset/b05dd467-aaf8-4c67-843c-27f049057b78. It was developed with the RIHA software (Réseau Informatique des Herbiers d'Afrique). The RIHA system (
herbarium collection, herbarium sheets, Liliopsida , Magnoliopsida , Occurrence, Plants, RIHA, Togo, University of Lomé, West Africa
Botanical collections are an indispensable tool in the field of biodiversity conservation. Indeed, they provide basic data for the evaluation of species conservation status, a task that presents a significant lack in Africa, especially in Togo (
In West Africa as in Central Africa, the level of digital accessible information (DAK) on vascular plants – though far from satisfactory – has been raised by efforts in neighbouring countries (
The dataset, here described, narrows this knowledge gap and should be a key resource in the making of a national plant checklist for Togo, monographs, floras and other research crucial to addressing challenges of knowledge, pedagogy, sustainable development and decision-making about natural resources and environments (
In a wider context, this dataset contributes to the correction of a global lack of tropical biodiversity data availability (
Data capture of the University of Lomé herbarium collections started in 2003 as part of the RIHA initiative led by the
DAK on the plants of Togo is relatively large, based on nearly 85% of primary biodiversity data records derived from specimens in the National Herbarium, plus data from other institutions (Ministry of Environment and NGOs etc.) served through biodiversity informatics initiatives such as GBIF. Data on plants of Togo have not yet been integrated and assessed to establish how complete the site inventories are across the country, so that appropriate levels of confidence can be applied; these gaps in knowledge directly affect the fitness-for-use of the data (
The database of the National Herbarium of Togo is the result of several digitisation programmes:
– 2003–2006 RIHA Project: initiated by
– 2008–2011 SEP (Sud Expert Plantes programme (http://www.sud-expert-plantes.ird.fr/ projets/Herbiers_et_J_Botaniques funded by MAEE France (SEP Project N°206) (http://www.sud-expert-plantes.ird.fr/ projets/dossier_206) makes it possible for the University of Lomé to start modernising its herbarium by assembling herbarium specimens to international standards and to capture labels’ data into the RIHA database.
– 2008–2010 API African Plants Initiative Projects, funded by Mellon Foundation through JsTor https://plants.jstor.org/, allows the publishing of the first 8,000 specimens digitalised (Figure
– 2016–2018 BID Project (BID-AF2015-0004-NAC), led by GBIF secretariat and funded by the European Union https://www.gbif.org/project/82693/ strengthening-the-biodiversity-stakeholders-network-in-togo)
Sodjinou Komlan Edjèdu, Allassani Stephane, Tchani Watchiou, Abotsi Eli, Dogbé Yawa and Koda Donko.
Most specimens in Togo Herbarium belong to class Magnoliopsida (2,101 specimens) and Liliopsida (8,508 specimens). These classes are followed by Filicopsida (505 specimens), Lycopsida (138 specimens), Coniferopsida (104 specimens), Equisetopsida (24 specimens), Ophioglossopsida (14 specimens), Gnetopsida (6 specimens), Taxopsida (4 specimens), Cycadopsida and Ginkgopsida (both with 2 specimens) and Psilotopsida (1 specimen) (Figure
Togo herbarium contains specimens belonging to 194 families, of which 13.25% of the specimens belong to Leguminosae-Papilionoideae, followed by Graminae (7.73%), Rubiaceae (7.37%), Euphorbiaceae (6.69%), Asteraceae (5%), Cyperaceae (4.50%), Gleicheniaceae (2.66%), Leguminosae-Caesalpinioideae (2.24%), Combretaceae (2.12%), Commelinaceae (1.90%), Moraceae (1.74%), Scrophulariaceae (1.72%), Ulmaceae (1.66%), Leguminosae-Mimosoideae (1.63%), Asclepiadaceae and Apocynaceae (1.57%).
The herbarium includes 198 genera, significant ones amongst them being Phyllanthus (344 specimens), Ficus (207 specimens), Indigofera (193 specimens), Combretum (165 specimens), Crotalaria (148 specimens), Vernonia (119 specimens), Euphorbia (92 specimens), Trema (92 specimens), Cyperus (168 specimens), Eriosema (82 specimens), Fimbristylis (82 specimens) and Uvaria (45 specimens). Although the herbarium contains specimens from all major botanical groups, Phanerogams (angiosperms-gymnosperms), Pteridophyta (ferns), Bryophyta and Thallophyta (algae-lichens-fungi), the dataset used for this paper covers exclusively Angiosperms (Dicotyledonous and Monocotyledonous) (Figure
The collection includes 508 singletons from 117 different families that represent 4% of the total record. Important families concerned are Graminae (43 specimens), Leguminosae-Papilionoideae 35, Orchidaceae 26, Rubiaceae 25, Euphorbiaceae 22 and Cyperaceae 21 species. Major genera are Ficus and Indigofera (9 specimens), Dioscorea (8 specimens), Eulophia (7 specimens), Crotalaria and Phyllanthus (6 specimens) and Ceropegia (5 specimens).
Kingdom: Plantae
Division: Magnoliophyta (Cronquist, Takht. & W. Zimm., 1996)
Phylum: Spermaphyta
Class: Magnoliopsida, Liliopsida
Family: Agavaceae, Alismataceae, Amaryllidaceae, Anthericaceae, Araceae, Asparagaceae, Aspidiaceae, Cannaceae, Commelinaceae, Costaceae, Cyperaceae, Dioscoreaceae, Dracaenaceae, Droseraceae, Eriocaulaceae, Erythroxylaceae, Gramineae, Hyacinthaceae, Hydrocharitaceae, Hydrophyllaceae, Hypoxidaceae, Iridaceae, Lemnaceae, Liliaceae, Linaceae, Marantaceae, Musaceae, Najadaceae, Opiliaceae, Orchidaceae, Palmae, Pandanaceae, Pontederiaceae, Smilacaceae, Taccaceae, Typhaceae, Xyridaceae, Zingiberaceae.
Acanthaceae, Aizoaceae, Amaranthaceae, Anacardiaceae, Annonaceae, Apocynaceae, Araliaceae, Aristolochiaceae, Asclepiadaceae, Avicenniaceae, Azollaceae, Balanitaceae, Balanophoraceae, Balsaminaceae, Basellaceae, Begoniaceae, Bignoniaceae, Bixaceae, Bombacaceae, Boraginaceae, Burseraceae, Cactaceae, Campanulaceae, Capparaceae, Caricaceae, Caryophyllaceae, Casuarinaceae, Cecropiaceae, Celastraceae, Ceratophyllaceae, Chenopodiaceae, Chrysobalanaceae, Cochlospermaceae, Colchicaceae, Combretaceae, Compositae, Connaraceae, Convolvulaceae, Crassulaceae, Cruciferae, Cucurbitaceae, Dichapetalaceae, Dilleniaceae, Dipterocarpaceae, Ebenaceae, Euphorbiaceae, Flacourtiaceae, Flagellariaceae, Gentianaceae, Gesneriaceae, Goodeniaceae, Guttiferae, Haloragaceae, Hernandiaceae, Hippocrateaceae, Icacinaceae, Irvingiaceae, Labiatae, Lauraceae, Lecythidaceae, Leeaceae, Leguminosae, Leguminosae-Caesalpinioideae, Leguminosae-Mimosoideae, Leguminosae-Papilionoideae, Lentibulariaceae, Loganiaceae, Loranthaceae, Lycopodiaceae, Lythraceae, Malpighiaceae, Malvaceae, Melastomataceae, Meliaceae, Menispermaceae, Molluginaceae, Moraceae, Moringaceae, Myristicaceae, Myrsinaceae, Myrtaceae, Nyctaginaceae, Nymphaeaceae, Ochnaceae, Olacaceae, Oleaceae, Onagraceae, Opiliaceae, Oxalidaceae, Pandaceae, Papaveraceae, Passifloraceae, Pedaliaceae, Phytolaccaceae, Piperaceae, Pittosporaceae, Plumbaginaceae, Podostemaceae, Polygalaceae, Polygonaceae, Portulacaceae, Proteaceae, Punicaceae, Ranunculaceae, Rhamnaceae, Rhizophoraceae, Rosaceae, Rubiaceae, Rutaceae, Salicaceae, Santalaceae, Sapindaceae, Sapotaceae, Saxifragaceae, Scrophulariaceae, Simaroubaceae, Solanaceae, Sphenocleaceae, Sterculiaceae, Thymelaeaceae, Tiliaceae, Turneraceae, Ulmaceae, Umbelliferae, Urticaceae, Verbenaceae, Violaceae, Vitaceae, Zygophyllaceae.
The described dataset collections come from all over Togo. Togo is located in West Africa which has an area of 56,600 km2. It stretches for 600 km from North to South and East to West between 50 and 150 km wide (Figure
Togo Herbarium specimens were collected through the 5 Togo ecological zones (ZE) (Figure
Togo is located between 6° and 11° latitude and 1° East longitude (Figure
With respect to the temporal coverage of the specimens, 5,895 (47.16%) consist of specimens collected from 1970 to 1984, most of them used for the botanical species description and the drafting of the Togo's Flora (
The herbarium specimens were mainly collected in Togo (99%). The remaining 1% come from neighbouring countries such as Ghana, Benin and Côte d'Ivoire collected by Togolese researchers on research trips. These specimens date from the second half of the 20th century. Today, the Herbarium occupies an area of approximately 100 m2 and is located on the ground floor of the building that houses the Dean’s Office of the Faculty of Sciences of the University of Lomé. Thanks to SEP Project N°206 --funded in 2008 by the French Ministry of Foreign Affairs, the storage for 12,572 specimens was upgraded to international standards by use of new closed door wooden cabinets. The collection is arranged in alphabetical order by Family, Genus and Species names. There are no type specimens kept in the Herbarium but the only recognised endemic species is well-represented by 16 specimens. The main collectors are: Brunel (6227 specimens, Figures
University of Lomé herbarium: Herbarium togoense; Index Herbariorum Acronym: TOGO.
The compilation of this dataset was based on digitised data and experiences gained from the RIHA and SEP projects, as well as an updated inventory of existing resources (collections and contacts). In particular, it relied on the establishment of databases in Herbaria (
The fieldwork and herbarium specimens study followed traditional procedures (
Data processing. Details -measures, label facts, nomenclature etc. from all studied specimens were entered into a MS-Access database (RIHA database) designed and built for that purpose. Additional tables and queries were created to record specimen measures as well as bibliographic, taxonomic and nomenclatural information - these are not included in this dataset, but nomenclature information is available through '
Study extent description: The analysis of this dataset reveals that eco-floristic zone IV is the most significant and prospected with 31.63% of the herbarium specimens whereas ecological zone II remains the least prospected with 11.33% of the collected specimens.
Although quite rich, Togolese spontaneous flora remains incompletely known (
Figure
Sampling description: The specimens deposited in the TOGO Herbarium come from several research projects mainly involving first lecturers in Botany in the university followed by the first PhD students studying in French universities whose fieldwork was carried out in Togo. As a result, specimens were collected under a variety of methods and diverse objectives. The situation is the same with materials coming from donations or purchases (e.g. herbarium of Ern). When possible, duplicates of specimens have been sent to renowned herbaria. Some duplicates of herbarium specimens (5,403, 36.02% of the collection) from Togo were deposited in other herbaria committed to long-term maintenance. These where: B, BR, IFAN, K, LMU, MO, MPU, P, STR, UK, US and WAG (http://sweetgum.nybg.org/science/ih/.
During the SEP project (2008–2012), 6 students studying for Master's degrees in Plant Biology were recruited to assemble herbarium specimens deposited by collectors in presses and sometimes in Canson papers. Most specimens have original collectors’ labels. Trained in the use of RIHA database (under Microsoft Access), the students digitised the data as and when the specimens were mounted. Data were exported to Excel for publication..
Quality control description: The present dataset was updated to match the Cronquist classification for the orders and families of flowering plants and all species names were checked for validity (spelling, synomyms and authorship) against online databases: http://www.ipni.org/ipni/plantnamesearchpage.do; http://www.theplantlist.org/; http://www.ville-ge.ch/musinfo/bd/cjb/africa/recherche.php.
Object name: Togo National Herbarium database
Character encoding: UTF-8
Format name: Darwin Core Archive format
Format version: 1.0
Distribution: http://ipt-togo.gbif.fr/resource?r=herbarium_database&v=1.5
Publication date of data: 2018-01-05
Language: French
Licences of use: This database “Togo National Herbarium database” is made available under licence Creative Commons Attribution (CC-BY) 4.0 License
Metadata language: English
Date of metadata creation: 2018-01-05
Hierarchy level: Dataset
We wish to thank the Government of France for financing the modernisation of the National Herbarium of Togo through the BEST capacity building programme led by