- Family:
- Dioscoreaceae R.Br.
- Genus:
- Dioscorea Plum. ex L.
Dioscorea baya De Wild.

[FTEA]
Dioscoreaceae, E. Milne-Redhead. Flora of Tropical East Africa. 1975
- Morphology General Habit
- Tuber probably replaced annually, shape not recorded, protected by thorny roots.
- Morphology Stem
- Stems with prickles below, up to 27 m. high.
- Morphology Leaves
- Leaves opposite or alternate, glabrous; petiole up to 6 cm. long; blade ovate or elliptic, rounded at the base, broadly and shortly acuminate, 3–5-nerved with the 2 primary nerves not running near the margin, up to 6(–9) cm. long and 4.5(–6) cm. broad.
- Vegetative Multiplication Tubers
- Aerial tubers not observed.
- Morphology Reproductive morphology Inflorescences
- Inflorescences glabrous.
- sex Male
- Male spicate up to 4 cm. long with the flowers usually densely arranged and early caducous, arising up to 7 in the axils of leaves or more rarely at leafless node on terminal or lateral branches up to 15 cm. long; perianth subglobose, scarious, ± 1 mm. in diameter.
- Morphology Reproductive morphology Flowers
- Female 1 per leaf-axil, up to 17 cm. long; perianth semi-globose, ± 1.5 mm. in diameter; tepals coriaceous. Ovary glabrous. Male spicate up to 4 cm. long with the flowers usually densely arranged and early caducous, arising up to 7 in the axils of leaves or more rarely at leafless node on terminal or lateral branches up to 15 cm. long; perianth subglobose, scarious, ± 1 mm. in diameter.
- sex Female
- Female 1 per leaf-axil, up to 17 cm. long; perianth semi-globose, ± 1.5 mm. in diameter; tepals coriaceous. Ovary glabrous.
- Morphology Reproductive morphology Fruits
- Capsule as 6, D. odoratissima, up to 3.8 cm. in diameter.
- Morphology Reproductive morphology Seeds
- Seeds winged all round.
- Habitat
- Lowland rain-forest; 1150–1200 m.
- Distribution
- U4
Native to:
Angola, Burundi, Cameroon, Central African Repu, Congo, Gabon, Ivory Coast, Liberia, Uganda, Zambia, Zaïre
Dioscorea baya De Wild. appears in other Kew resources:
Date | Reference | Identified As | Barcode | Type Status | Has image? |
---|---|---|---|---|---|
Germain, R.G.A. [8124], Congo, DRC | K000809784 | Yes | |||
Harley, W.J. [573], Liberia | K001146040 | Yes | |||
Louis [9649], Congo, DRC | K001146500 | Yes | |||
Klaine, R.P. [3234], Gabon | K001146493 | Yes | |||
Eggeling, W.J. [160], Uganda | K000809965 | Yes | |||
Holmes, W.D. [H1250], Zambia | K001148288 | Yes | |||
Wilde, J.J.F.E. de [8228], Cameroon | K000809782 | Yes | |||
Robyns, F.H.E.A.W. [4260], Congo, DRC | K000809788 | Yes | |||
Callens, H. [3923], Congo, DRC | K001146497 | Yes | |||
Louis [9649], Congo, DRC | K000809785 | Yes | |||
Louis [6684], Congo, DRC | K000809981 | Yes | |||
Louis [10250], Congo, DRC | K000809787 | Yes | |||
Louis, J.L.P. [12173], Congo, DRC | K001146499 | Yes | |||
Dümmer, R. [859], Uganda | K001147447 | Yes | |||
Louis [12173], Congo, DRC | K001146501 | Yes | |||
Germain, R.G.A. [8439], Congo, DRC | K001146494 | Yes | |||
Leeuwenberg, A.J.M. [9808], Cameroon | K000809996 | Yes | |||
Harris, D.J. [1193], Central African Republic | K000809783 | Yes | |||
Louis [4053], Congo, DRC | K000809979 | Yes | |||
s.coll [3923], Congo, DRC | K001146496 | Yes | |||
Thomas, N.W. [2796], Sierra Leone | K000809780 | Yes | |||
Louis [9667], Congo, DRC | K000809980 | Yes | |||
s.coll [2173], Uganda | K001147451 | Yes | |||
Lebrun [5746], Congo, DRC | K001146498 | Yes | |||
s.coll [1616] | K001147448 | Yes | |||
Eggeling, W.G. [372], Uganda | K001147449 | Yes | |||
Dubois, L. [985], Congo, DRC | K000809786 | Yes | |||
Leonard [399], Congo, DRC | K001146502 | Yes | |||
s.coll [2173] | K001147450 | Yes | |||
Staner [1338], Congo, DRC | K001146495 | Yes |
First published in Ann. Mus. Congo Belge, Bot., sér. 5, 3: 357 (1912)
Accepted by
- Govaerts, R. (2000). World Checklist of Seed Plants Database in ACCESS D: 1-30141.
- Govaerts, R., Wilkin, P. & Saunders, R.M.K. (2007). World Checklist of Dioscoreales. Yams and their allies: 1-65. The Board of Trustees of the Royal Botanic Gardens, Kew.
- Lejoy, J., Ndjele, M.-B. & Geerinck, D. (2010). Catalogue-flore des plantes vasculaires des districts de Kisangani et de la Tshopo (RD Congo) Taxonomania. Revue de Taxonomie et de Nomenclature Botaniques 30: 1-307.
- Sosef, M.S.M. & al. (2006). Check-list des plantes vasculaires du Gabon Scripta Botanica Belgica 35: 1-438.
- Timberlake, J.R. & Martins, E.S. (eds.) (2009). Flora Zambesiaca 12(2): 1-208. Royal Botanic Gardens, Kew.
Literature
Kew Backbone Distributions
- Sosef, M.S.M. & al. (2006). Check-list des plantes vasculaires du Gabon Scripta Botanica Belgica 35: 1-438.
Flora of Tropical East Africa
- Burkill in Bulletin du Jardin Botanique de l'État a Bruxelles 15: 391 (1939).
- De Wild. in Ann. Mus. Congo, Bot., sér. 5, 3: 357, t. 52 (1912).
- R. Knuth in A. Engler, Das Pflanzenreich IV. 43: 301 (1924).
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Flora of Tropical East Africa
Flora of Tropical East Africa
http://creativecommons.org/licenses/by-nc-sa/3.0
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Herbarium Catalogue Specimens
Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/
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Kew Backbone Distributions
The International Plant Names Index and World Checklist of Selected Plant Families 2022. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0
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Kew Names and Taxonomic Backbone
The International Plant Names Index and World Checklist of Selected Plant Families 2022. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0