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 var. kimpundi De Wild.

Dioscorea baya De Wild. appears in other Kew resources:

IPNI - The International Plant Names Index

Date	Reference	Identified As	Barcode	Type Status
	Germain, R.G.A. [8124], Congo, DRC		K000809784
	Harley, W.J. [573], Liberia		K001146040
	Louis [9649], Congo, DRC		K001146500
	Klaine, R.P. [3234], Gabon		K001146493
	Eggeling, W.J. [160], Uganda		K000809965
	Holmes, W.D. [H1250], Zambia		K001148288
	Wilde, J.J.F.E. de [8228], Cameroon		K000809782
	Robyns, F.H.E.A.W. [4260], Congo, DRC		K000809788
	Callens, H. [3923], Congo, DRC		K001146497
	Louis [9649], Congo, DRC		K000809785
	Louis [6684], Congo, DRC		K000809981
	Louis [10250], Congo, DRC		K000809787
	Louis, J.L.P. [12173], Congo, DRC		K001146499
	Dümmer, R. [859], Uganda		K001147447
	Louis [12173], Congo, DRC		K001146501
	Germain, R.G.A. [8439], Congo, DRC		K001146494
	Leeuwenberg, A.J.M. [9808], Cameroon		K000809996
	Harris, D.J. [1193], Central African Republic		K000809783
	Louis [4053], Congo, DRC		K000809979
	s.coll [3923], Congo, DRC		K001146496
	Thomas, N.W. [2796], Sierra Leone		K000809780
	Louis [9667], Congo, DRC		K000809980
	s.coll [2173], Uganda		K001147451
	Lebrun [5746], Congo, DRC		K001146498
	s.coll [1616]		K001147448
	Eggeling, W.G. [372], Uganda		K001147449
	Dubois, L. [985], Congo, DRC		K000809786
	Leonard [399], Congo, DRC		K001146502
	s.coll [2173]		K001147450
	Staner [1338], Congo, DRC		K001146495

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).

Flora of Tropical East Africa
Flora of Tropical East Africa
http://creativecommons.org/licenses/by-nc-sa/3.0

Kew Backbone Distributions
The International Plant Names Index and World Checklist of Selected Plant Families 2021. 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

Kew Names and Taxonomic Backbone
The International Plant Names Index and World Checklist of Selected Plant Families 2021. 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

Descriptions

According to Flora of Tropical East Africa

Images

Distribution

Native to:

Synonyms

Other Data