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

[FWTA]

Aponogetonaceae, F. N. Hepper. Flora of West Tropical Africa 3:1. 1968

Morphology General Habit
Aquatic in pools on laterite
Morphology Reproductive morphology Flowers
Flowers white or pale violet.

[FTEA]

Aponogetonaceae, K.A. Lye (Agricultural University of Norway). Flora of Tropical East Africa. 1989

Morphology General Habit
Plants monoecious.
Vegetative Multiplication Tubers
Tuber globular to conical, usually only 5–10 mm. (rarely to 20 mm.) in diameter; lower half greyish to greenish without roots; upper half with very numerous roots.
Morphology Leaves
Leaves very numerous (often 25–50 or more on robust plants), sessile, ligulate with obtuse tips, often 10–20 cm. long and 4–8 mm. wide on larger plants, only 5–10 cm. long and 1.5–4 mm. wide on smaller specimens, without a distinct midrib, but with 7 or 9 indistinct parallel lateral nerves.
Morphology Reproductive morphology Flowers
Flowers white or with a slight violet tinge, drying a warm yellowish brown, densely set in unbranched unilateral spikes on 5–30 cm. long peduncles (depending on the depth of the water); spathe 12–18 mm. long, usually persistent when flowering, caducous when fruiting.
Morphology Reproductive morphology Inflorescences
Spike usually 2–5 cm. long and ±10 mm. wide with tepals spreading, the upper part recurved or spirally twisted; flowers inserted on only one side of the axis.
Morphology Reproductive morphology Flowers Tepal
Tepals 2, white and glossy, rarely with a pinkish or mauve tinge, particularly below, oval, 3–6 mm. long and usually 2–3 mm. wide, caducous, with several nerves.
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 6, 1.5–2 mm. long; filaments whitish, widened towards the base; anthers 0.4–0.8 mm. long and 0.3–0.5 mm. wide, greyish violet to blackish, but pollen yellow.
Morphology Reproductive morphology Flowers Gynoecium Ovary
Ovaries 3, green, with 6–8 ovules.
Morphology Reproductive morphology Fruits
Follicles green, 4.5–6 mm. long including a ± 1 mm. long beak.
Morphology Reproductive morphology Seeds
Seeds 1.8–2.5 mm. long and 0.4–0.7 mm. wide, narrowly oblong-lanceolate with distinct longitudinal ridges (made of the loose outer testa), greenish with the brownish inner testa visible beneath.
Figures
Fig. 1.
Habitat
In shallow seasonal rock-pools and lake-edges, locally abundant, usually submerged but sometimes on wet soil; 1050–1700 m.
Distribution
K3 U1 U3 U4 scattered throughout tropical Africa from Senegal and Sierra Leone to Ethiopia and with a southern limit in Zambia

Native to:

Burkina, Cameroon, Central African Repu, Chad, Ethiopia, Guinea-Bissau, Ivory Coast, Kenya, Nigeria, Rwanda, Senegal, Sierra Leone, Sudan, Uganda, Zambia, Zaïre

Aponogeton vallisnerioides Baker appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Keay, R.W.J. [25961], Nigeria 24326.000
Speke [s.n.] K000346038 Unknown type material

First published in Trans. Linn. Soc. London, Bot. 2: 158 (1875)

Accepted by

  • Andrews, F.W. (1956). The Flowering Plants of the Sudan 3: 1-579. T.Buncle & co., LTD., Arbroath, Scotland.
  • Catarino, L., Sampaio Martins, E., Pinto-Basto, M.F. & Diniz, M.A. (2006). Plantas Vasculares e Briófitos da Guiné-Bissau: 1-298. Instituto de investigação científica tropical, Instituto Português de apoio ao desenvolvimento.
  • 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.
  • Edwards, S., Demissew, S. & Hedberg, I. (eds.) (1997). Flora of Ethiopia and Eritrea 6: 1-586. The National Herbarium, Addis Ababa University, Ethiopia & The Department of Systematic Botany, Upps.
  • Govaerts, R. (1995). World Checklist of Seed Plants 1(1, 2): 1-483, 1-529. MIM, Deurne.
  • Hepper, F.N. (ed.) (1968). Flora of West Tropical Africa, ed. 2, 3(1): 1-276.
  • Lebrun, J.-P., Audru, J., Gaston, A. & Mosnier, M. (1972). Catalogue des Plantes Vasculaires du Tchad Méridional: 1-289. Institut d' Elevage et de Médecine Vétérinaire des Pays Tropicaux, Maisons Alfort.
  • Lye, K.A. (1989). Aponogetonaceae Flora of Tropical East Africa: 1-10.
  • Symoens, J.J. & Villiers, J.-F. (1984). Alismatidées, Flagellariacées Flore du Cameroun 26: 1-84. Ministère de l'enseignement supérieur et de la recherche scientifique (Mesres), Yaoundé.
  • Timberlake, J.R. & Martins, E.S. (eds.) (2009). Flora Zambesiaca 12(2): 1-208. Royal Botanic Gardens, Kew.
  • van Bruggen, H.W.E. (1974). Flore d'Afrique Centrale (Zaïre - Rwanda - Burundi) Aponogetonaceae: 1-11. Jardin Botanique National de Belgique, Meise.

Literature

Flora of West Tropical Africa

  • F.T.A. 8: 218
  • Troupin in Fl. Sperm. Parc. Nat. Garamba 1: 12, fig. 1 (1953).
  • in Trans. Linn. Soc. 29: 158 (1875)

Kew Backbone Distributions

  • Catarino, L., Sampaio Martins, E., Pinto-Basto, M.F. & Diniz, M.A. (2006). Plantas Vasculares e Briófitos da Guiné-Bissau: 1-298. Instituto de investigação científica tropical, Instituto Português de apoio ao desenvolvimento.
  • Timberlake, J.R. & Martins, E.S. (eds.) (2009). Flora Zambesiaca 12(2): 1-208. Royal Botanic Gardens, Kew.

Flora of Tropical East Africa

  • A. Bennett in Flora of Tropical Africa 8: 218 (1901).
  • Baker in Trans. Linn. Soc., Bot. 29:158 (1875).
  • F. W. Andr., The Flowering Plants of the Sudan 3: 234 (1956).
  • H. Bruggen in Bibl. Bot. 33,137: 39 (1985).
  • H. Bruggen in Bulletin du Jardin botanique National de Belgique 43: 197, fig. 4/1 (1973)
  • H. Bruggen in Flore d'Afrique Centrale: 3, t. 1 (1974).
  • Hepper in Flora of West Tropical Africa, ed. 2, 3: 15 (1968).
  • K. Krause in A. Engler, Das Pflanzenreich IV. 13:19, fig. 9J–M (1906).
  • Lye in A.D.Q. Agnew, Upland Kenya Wild Flowers p. 652 (1974).
  • Symoens in Fl. Cameroun 26: 48, t. 12 (1984).
  • Troupin in Fl. Garamba 1: 12, fig. 1 (1956).

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

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