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This species is accepted, and its native range is Tropical Africa.
A specimen from Kew's Herbarium

[FTEA]

Dioscoreaceae, E. Milne-Redhead. Flora of Tropical East Africa. 1975

Morphology General Habit
Tuber replaced annually, narrowly cylindric, up to 40 cm. long, with thickened horizontal branches, up to 30 cm. long and 3.5 cm. in diameter below.
Morphology Stem
Twining stems up to 24 m. long, many-sided and narrowly winged below, glabrescent.
Morphology Leaves
Leaves alternate; petiole up to 15(–25) cm. long; blade heart-shaped, up to 12(–28) cm. long and 15(–30) cm. broad, with an acute acumen 1(–2) cm. long; indumentum of dense to sparse woolly somewhat adpressed medifixed hairs, more dense beneath, glabrescent in age.
Morphology Reproductive morphology Inflorescences
Inflorescences pendulous, racemose. Male up to 5 from a leaf-axil, up to 22 cm. long; pedicels ± 1 mm. long. Perianth opening flat, ± 5 mm. across; segments slightly concave, pubescent outside, the 3 inner rather broader. Stamens 3; staminodes 3, arching over the pistilode. Female inflorescence spicate, axillary, up to 34 cm. long; flowers solitary, directed downwards; perianth flat, almost 4 mm. wide. Ovary ± 8 mm. long.
sex Male
Male up to 5 from a leaf-axil, up to 22 cm. long; pedicels ± 1 mm. long. Perianth opening flat, ± 5 mm. across; segments slightly concave, pubescent outside, the 3 inner rather broader. Stamens 3; staminodes 3, arching over the pistilode.
sex Female
Female inflorescence spicate, axillary, up to 34 cm. long; flowers solitary, directed downwards; perianth flat, almost 4 mm. wide. Ovary ± 8 mm. long.
Morphology Reproductive morphology Fruits
Capsule as in fig. 1/8, p. 4, with a narrow wing along each suture, 4–5.5 cm. long and 2.3 cm. in diameter.
Morphology Reproductive morphology Seeds
Seeds winged at both ends, ± 2.5 cm. long.
Habitat
Lowland rain-forest, woodland and secondary bushland; 650–1200 m.
Distribution
Senegal to Sudan, Zaire and Angola T4 U1 U2 U3 U4

[FWTA]

Dioscoreaceae, J. Miège. Flora of West Tropical Africa 3:1. 1968

Morphology General Habit
Robust non-spiny climber 20-30 ft. high
Vegetative Multiplication Tubers
Tubers generally deeply buried in the soil, often divided and lobed.

Native to:

Angola, Benin, Cameroon, Central African Repu, Congo, Gabon, Ghana, Guinea, Guinea-Bissau, Gulf of Guinea Is., Ivory Coast, Liberia, Malawi, Mozambique, Nigeria, Senegal, Sierra Leone, Sudan, Tanzania, Togo, Uganda, Zambia, Zaïre

Dioscorea preussii Pax appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Nov 18, 2013 Wieringa [3666], Gabon K000499575
Jul 23, 2013 Luke [15534], Mali K000499534
Jan 1, 2005 Cheek, M. [11072], Cameroon K000199856
Nov 23, 1972 Dawe [754], Uganda K000098437 holotype
Nov 23, 1972 Dawe [754], Uganda K000098438 holotype
Jan 1, 1960 Maitland, T.D. [398], Cameroon K000051625
Jan 1, 1960 Maitland, T.D. [398], Cameroon K000051626
Peal, J. [39], Uganda 15660.000
Peal, J. [38], Uganda 7095.000
Preuss [504] K000098389 syntype
Thomas, N.W. [1699], Sierra Leone K001145543
Morton, J.K. [A4001], Ghana K001145567
Onochie, C.F.A. [20201], Nigeria K001145572
Thomas, N.W. [1020], Nigeria K001145580
s.coll [s.n.], Nigeria K001145584
s.coll [17] K001145588
s.coll [378], Nigeria K001145594
Davis, A.P. [3019], Cameroon K001146329
Dacremont [429], Congo, DRC K001146343
Luke, Q. [14542], Congo, DRC K001146353
Luke, Q. [14416], Congo, DRC K001146354
Leemans [173], Congo, DRC K001146361
Dacremont [419], Congo, DRC K001146366
Eggeling, W.J. [3355], Uganda K001147111
Dawe, M.T. [39], Angola K001148013
Gossweiler, J. [634] K001148016
Killick, H.J. [3], Nigeria K001145570
Carvalho [3606], Equatorial Guinea K001146322
Tessmann, G. [988], Equatorial Guinea K001146371
Tessmann, G. [2699], Cameroon K001146330
Dubois, L. [986], Congo, DRC K001146368
Tessmann, G. [443], Equatorial Guinea K001146331
Breteler, F.J. [740], Cameroon K001146319
s.coll [EN510/68], Angola K001148017
Monteiro [s.n.], Angola K001148011
Sanou, L. [BUR-705], Burkina Faso K001145565
Lecerf, M. [s.n.], French Guiana K001145541
Pereira, J.A. [2063], Guinea-Bissau K001145538
Germain, R.G.A. [1771], Congo, DRC K001146338
Goossens [2798], Congo, DRC K001146358
Onochie, C.F.A. [20201], Nigeria K001145571
Peal, S.E. [15660], Uganda K001147114
Glanville, R.R. [1424], Sierra Leone K001145554
Baldwin, J.T.Jr. [13862], Cameroon K001146324
Jordan, H.D. [122], Sierra Leone K001145544
Morton, J.K. [4847] K001145548
Thomas, N.W. [1678], Sierra Leone K001145553
Maitland, T.D. [314], Cameroon K001146326
Menavanza, F. [74], Congo, DRC K001146367
Herb Jaeger, P. [8188], Sierra Leone K001145552
Keay, R.W.J. [16231], Nigeria K001145575
Geerling, C. [2317], Côte d'Ivoire K001145562
Maitland, T.D. [1311], Cameroon K001146327
Gossweiler, J. [s.n.], Angola K001148008
Wieringa, J.J. [3666], Gabon K001146336
Jones, A.P.D. [20256], Nigeria K001145576
Pilz, G.E. [1801], Nigeria K001145596
Adjaohoun, E.J. [68], Benin K001145569
Keay, R.W.J. [16231], Nigeria K001145574
Thomas, N.W. [1748], Nigeria K001145589
Robyns [1042], Congo, DRC K001146357
Gossweiler [8637], Angola K001148015
Assi, L.A. [9061], Côte d'Ivoire K001145561
Kennedy, J.D. [2719], Nigeria K001145582
Carvalho [4205], Equatorial Guinea K001146332
Gossweiler, J. [4833], Angola K001148004
s.coll [4038], Angola K001148012
Pereira, J.A. [2684], Guinea-Bissau K001145537
Talbot, D.A. [780], Nigeria K001145587
Kennedy, J.D. [2719], Nigeria K001145581
Pilz, G.E. [2163], Nigeria K001145595
Gossweiler [267-12], United Kingdom K001148000
Baldwin, J.T.Jr. [9824], French Guiana K001145542
Thomas, N.W. [1718], Sierra Leone K001145545
Mildbraed [9197], Cameroon K001146314
Louis, J.L.P. [12533], Congo, DRC K001146347
Schmidt, H.H. [2189], Ghana K001145568
Bouquet, A. [130], Congo, DRC K001146369
Leeuwenberg, A.J.M. [10254], Cameroon K001146320
Morton [SL 1984] K001145550
Haswell, D.R. [139], Sierra Leone K001145560
Dorr, L.J. [4301], Gabon K001146337
Louis, J.L.P. [11176], Congo, DRC K001146349
Sanou, L. [BUR-705], Burkina Faso K001145564
Thomas, N.W. [975], Nigeria K001145586
Thomas, N.W. [1748], Nigeria K001145583
Mildbraed [9197], Cameroon K001146315
Carvalho [2357], Equatorial Guinea K001146323
Morton, J.K. [4541] K001145559
Robyns [1120], Congo, DRC K001146359
Germain [1771], Congo, DRC K001146339
Lebrun [497], Congo, DRC K001146355
Maitland, T.D. [68], Cameroon K001146321
Louis [5606], Congo, DRC K001146346
Louis, J.L.P. [5606], Congo, DRC K001146364
Gillardin [344], Congo, DRC K001146365
Carvalho [2915], Equatorial Guinea K001146333
s.coll [s.n.], Nigeria K001145585
Gillardin, J.A.A. [523], Congo, DRC K001146341
Gillardin [523], Congo, DRC K001146342
Guerra, J.A. [3895], Guinea-Bissau K001145539
Harris, D.J. [1461], Central African Republic K001146313
Robyns [800], Congo, DRC K001146356
Myers, J.G. [6724], Sudan K001146589
Louis [11589], Congo, DRC K001146351
Louis [12533], Congo, DRC K001146348
Kennedy, J.D. [1614], Nigeria K001145591
unknown [s.n.] K000696824
Letouzey, R. [5754], Cameroon K001146318
Harris, D.J. [1460], Central African Republic K001146311
Lebrun [1212], Congo, DRC K001146360
s.coll [103] K001145579
Myers, J.G. [9137], Sudan K001146592
Callens [1133], Congo, DRC K001146344
Louis [5606], Congo, DRC K001146363
Fay, J.M. [8531], Central African Republic K001146312
Thomas, N.W. [1760], Sierra Leone K001145557
Morton, J.K. [3680] K001145549
Jones, A.P.D. [20256], Nigeria K001145577
Thomas, N.W. [3202], Sierra Leone K001145556
Carvalho [2915], Equatorial Guinea K001146334
Herb Jaeger, P. [9875], Sierra Leone K001145558
Onochie, C.F.A. [35114], Nigeria K001145592
Monteiro [s.n.], Angola K001148010
Friis, I. [179], Sudan K001146586
Deighton, F.C. [3170], Sierra Leone K001145546
Tindall, H.D. [41], Sierra Leone K001145547
Hasegawa, T. [45], Tanzania K001147118
Fox, R.H. [164], Gambia K001145535
Gossweiler, J. [4833], Angola K001148006
Peal, S.E. [7095], Uganda K001147112
Boughey, A.S. [s.n.], Ghana K001145566
Paulo, S. [610], Uganda K001147115
Keay, R.W.J. [16231], Nigeria K001145578
s.coll [1311], Cameroon K001146325
Mullenders, W. [1947] K001146340
Paulo, S. [610], Uganda K001147116
Peal, S.E. [38], Uganda K001147113
Gossweiler, J. [4588], Angola K001148003
Staner [1472], Congo, DRC K001146362
Lecerf, M. [s.n.], French Guiana K001145540
Kennedy, J.D. [1614], Nigeria K001145590
Dubois [86], Congo, DRC K001146352
Schweinfurth, G.A. [3712], Sudan K001146588
Dawe, M.T. [39], Angola K001148014
Geerling, C. [780], Côte d'Ivoire K001145563
Barter, C. [1057], Nigeria K001145930
Onochie, C.F.A. [20201], Nigeria K001145573
Fay, J.M. [4567], Central African Republic K001146309
Fay, J.M. [4567], Central African Republic K001146310
Deighton, F.C. [1243], Sierra Leone K001145555
Carvalho [4061], Equatorial Guinea K001146335
Thomas, N.W. [4652], Sierra Leone K001145551
s.coll [711], Tanzania K001147117
Myers, J.G. [9171], Sudan K001146590
Attims, Y. [80], Congo, DRC K001146370
Zenker [413], Cameroon K001146316
Jackson, J.K. [4253], Sudan K001146587
Maitland, T.D. [1311], Cameroon K001146328
Herb Callens, H. [1133], Congo, DRC K001146345
Louis [11176], Congo, DRC K001146350
Myers, J.G. [9171], Sudan K001146591
Zenker [325], Cameroon K001146317

First published in Bot. Jahrb. Syst. 15: 147 (1892)

Accepted by

  • Akoègninou, A., van der Burg, W.J. & van der Maesen, L.J.G. (eds.) (2006). Flore Analytique du Bénin: 1-1034. Backhuys Publishers.
  • Brunel, J.F., Hiepo, P. & Scholz, H. (eds.) (1984). Flore Analytique du Togo Phanérogames: 1-751. GTZ, Eschborn.
  • Catarino, L., Martins, E.S., Diniz, M.A. & Pinto-Basto, M.F. (2006). Check-list da flora vascular do parque natural das Lagos de Cufada (Guiné-Bissau) Garcia de Orta, Série de Botânica 17: 97-141.
  • Darbyshire, I., Kordofani, M., Farag, I., Candiga, R. & Pickering, H. (eds.) (2015). The Plants of Sudan and South Sudan: 1-400. Kew publishing, Royal Botanic Gardens, Kew.
  • 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.
  • Jongkind, C. (2014). Fauna & Flora of Liberia, flowering plant species list www.liberianfaunaflora.org.
  • 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.
  • Sita, P. & Moutsambote, J.-M. (2005). Catalogue des plantes vasculaires du Congo, ed. sept. 2005: 1-158. ORSTOM, Centre de Brazzaville.
  • 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.
  • Velayos, M. & al. (eds.) (2018). Flora de Guinea Ecuatorial 10: 1-491. Consejo superior de investigaciones científicas, Real jardín botánico, Madrid.

Literature

Flora of West Tropical Africa

  • Burkill in Bull. Jard. Bot. Brux. 15: 351 (1939)
  • F.T.A. 7: 417
  • Knuth in Engl., Pflanzenr. Dioscoreac. 4, 43: 221 (1924)
  • Miège, Contrib. Dioscoreac. 55 (1952).
  • in Engl., Bot. Jahrb. 15: 147 (1893)

Kew Backbone Distributions

  • Akoègninou, A., van der Burg, W.J. & van der Maesen, L.J.G. (eds.) (2006). Flore Analytique du Bénin: 1-1034. Backhuys Publishers.
  • Brunel, J.F., Hiepo, P. & Scholz, H. (eds.) (1984). Flore Analytique du Togo Phanérogames: 1-751. GTZ, Eschborn.
  • Catarino, L., Martins, E.S., Diniz, M.A. & Pinto-Basto, M.F. (2006). Check-list da flora vascular do parque natural das Lagos de Cufada (Guiné-Bissau) Garcia de Orta, Série de Botânica 17: 97-141.
  • Jongkind, C. (2014). Fauna & Flora of Liberia, flowering plant species list www.liberianfaunaflora.org.
  • Sita, P. & Moutsambote, J.-M. (2005). Catalogue des plantes vasculaires du Congo, ed. sept. 2005: 1-158. ORSTOM, Centre de Brazzaville.
  • Velayos, M. & al. (eds.) (2018). Flora de Guinea Ecuatorial 10: 1-491. Consejo superior de investigaciones científicas, Real jardín botánico, Madrid.

Flora of Tropical East Africa

  • Bak. in Flora of Tropical Africa 7: 417 (1898).
  • Burkill in Bulletin du Jardin Botanique de l'État a Bruxelles 15: 351 (1939).
  • De Wild. in Bulletin du Jardin Botanique de l'État a Bruxelles 4: 318 (1914).
  • Hutch. & Dalz., Flora of West Tropical Africa 2: 382 (1936).
  • Miège in Flora of West Tropical Africa, ed. 2, 3: 152 (1968).
  • Pax in E. J. 15: 147 (1892).
  • R. Knuth in A. Engler, Das Pflanzenreich IV. 43: 221 (1924).
  • Robyns, Flore des Spermatophytes du Parc National Albert 3: 394 (1955).

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

Herbarium Catalogue Specimens
Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/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