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  1. Family: Menyanthaceae Dumort.
    1. Genus: Nymphoides Ség.
      1. Nymphoides forbesiana (Griseb.) Kuntze

        This species is accepted, and its native range is Tropical & S. Africa.

    [FTEA]

    Menyanthaceae, Christopher Whitehouse. Flora of Tropical East Africa. 1996

    Habit
    Plants perennial, occasionally annual, often reddish violet especially beneath the leaves.
    Stolons
    Stolons 1-3 mm. wide.
    Leaves
    Leaves circular, up to 12 cm. across, with a wide sinus; petiole 5-10(-30) mm. long.
    Inflorescences
    Inflorescence usually 10-20-flowered; pedicels (2-)4-7 cm. long.
    Calyx
    Calyx 4-7 mm., sepals spreading at anthesis, later closing around the capsule.
    Corolla
    Corolla 1.2-1.5 cm. across, golden yellow; tube ± 3-3.5 mm. long; lobes ± 6-7 mm. long, fimbriate along the margins and midvein, hairy in the throat; heterostylous.
    Stamens
    Stamens inserted near the sinus’ s of the corolla; filaments 1.5-1.7 mm. long in short-styled flowers, ± 0.5 mm. long in long-styled flowers; anthers 1.1-1.5 mm. long in both types of flowers.
    Pistil
    Gynoecium ± 4 mm. or 5.5-6 mm.; ovary ovoid, ± 2 mm.; carpels 2; stigma bifid, membranous, laciniate along the margins.
    Fruits
    Capsule ovoid, ± as long as the calyx but sometimes shorter when it contains only a few seeds.
    Seeds
    Seeds up to ± 12, smooth to echinulate.
    Habitat
    Shallow water at the edge of lakes, pools and rivers; 0-1650 m.
    Distribution
    K7 P T1 T3 T4 T6 T7 T8 U4 Z tropical Africa from Ivory Coast to Somalia, south to South Africa
    [FZ]

    Menyanthaceae, Barbara Mackinder. Flora Zambesiaca 7:4. 1990

    Habit
    Perennial, sometimes annual; floating stolons long and thin, 1–3 mm. thick in life.
    Leaves
    Petiole 0.5–1 (3) cm., lamina 12 cm. in diam., subcircular with a deep narrow sinus.
    Flowers
    Flowers 10–20 heterostylous; pedicels 3–6 cm. long.
    Calyx
    Calyx 3–4 mm. long, spreading at anthesis.
    Corolla
    Corolla golden yellow 10–15 mm. long, tube 3–3.5 mm. long, lobes 6–7 mm. long, fimbriate-laciniate along margins and midvein inside, hairy, sometimes more densely so at the throat.
    Fruits
    Capsule ovoid, 4–5 x 5.7 mm. slightly longer than the calyx, up to 12 seeded. Many fruits abort.
    Seeds
    Seeds 1.6–2.2 mm, round, smooth to spiny or glochidiate.

    Images

    Distribution

    Native to:

    Angola, Benin, Botswana, Cameroon, Chad, Congo, Gabon, Ivory Coast, Kenya, KwaZulu-Natal, Mozambique, Somalia, Sudan, Tanzania, Uganda, Zambia, Zaïre, Zimbabwe

    Synonyms

    Common Names

    English
    Yellow water gentian

    Other Data

    Nymphoides forbesiana (Griseb.) Kuntze appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Aug 1, 1970 Forbes [s.n.], Mozambique K000418517 lectotype
    Aug 1, 1970 K000418516
    Bidgood, S. [6203], Tanzania K000468222
    Andrews, F.W. [W3], Sudan Limnanthemum niloticum 16370.000

    Bibliography

    First published in Revis. Gen. Pl. 2: 429 (1891)

    Accepted by

    • 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.
    • Onana, J.M. (2011). The vascular plants of Cameroon a taxonomic checklist with IUCN assessments: 1-195. National herbarium of Cameroon, Yaoundé.
    • Lejoy, J., Ndjele, M.-B. & Geerinck, D. (2010). Catalogue-flore des plantes vasculaires des districts de Kisangani et de la Tshopo (RD Congo) Taxonomania 30: 1-307.
    • Figueiredo, E. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.
    • Sosef, M.S.M. & al. (2006). Check-list des plantes vasculaires du Gabon Scripta Botanica Belgica 35: 1-438.
    • Akoègninou, A., van der Burg, W.J. & van der Maesen, L.J.G. (eds.) (2006). Flore Analytique du Bénin: 1-1034. Backhuys Publishers.
    • Thulin, M. (ed.) (2006). Flora of Somalia 3: 1-626. The Royal Botanic Gardens, Kew.
    • Sita, P. & Moutsambote, J.-M. (2005). Catalogue des plantes vasculaires du Congo, ed. sept. 2005: 1-158. ORSTOM, Centre de Brazzaville.
    • Germishuizen, G. & Meyer, N.L. (eds.) (2003). Plants of Southern Africa an annotated checklist Strelitzia 14: 1-1231. National Botanical Institute, Pretoria.
    • Whitehouse, C. (1996). Flora of Tropical East Africa, Menyanthaceae: 1-5.
    • Launert, E. & Pope, G.V. (eds.) (1990). Flora Zambesiaca 7(4): 1-114. Royal Botanic Gardens, Kew.
    • 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.

    Literature

    Kew Backbone Distributions

    • 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.
    • Onana, J.M. (2011). The vascular plants of Cameroon a taxonomic checklist with IUCN assessments: 1-195. National herbarium of Cameroon, Yaoundé.
    • Lejoy, J., Ndjele, M.-B. & Geerinck, D. (2010). Catalogue-flore des plantes vasculaires des districts de Kisangani et de la Tshopo (RD Congo) Taxonomania 30: 1-307.
    • Figueiredo, E. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.
    • Sosef, M.S.M. & al. (2006). Check-list des plantes vasculaires du Gabon Scripta Botanica Belgica 35: 1-438.
    • Akoègninou, A., van der Burg, W.J. & van der Maesen, L.J.G. (eds.) (2006). Flore Analytique du Bénin: 1-1034. Backhuys Publishers.
    • Sita, P. & Moutsambote, J.-M. (2005). Catalogue des plantes vasculaires du Congo, ed. sept. 2005: 1-158. ORSTOM, Centre de Brazzaville.
    • Germishuizen, G. & Meyer, N.L. (eds.) (2003). Plants of Southern Africa an annotated checklist Strelitzia 14: 1-1231. National Botanical Institute, Pretoria.
    • Whitehouse, C. (1996). Flora of Tropical East Africa, Menyanthaceae: 1-5.
    • Launert, E. & Pope, G.V. (eds.) (1990). Flora Zambesiaca 7(4): 1-114. Royal Botanic Gardens, Kew.
    • 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.

    Flora of Tropical East Africa

    • Mackinder in Flora Zambesiaca 7(4): 53 (1990).
    • A. Raynal in Flore d'Afrique Centrale, Menyanthaceae: 6, fig. 3 (1975).
    • A. Raynal in Adansonia, sér. 2, 14: 424, t. 20 (1974)
    • Kuntze, Rev. Gen. Pl. 2: 429 (1891).

    Sources

    Flora Zambesiaca
    Flora Zambesiaca
    http://creativecommons.org/licenses/by-nc-sa/3.0

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

    Herbarium Catalogue Specimens
    'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet http://www.kew.org/herbcat [accessed on Day Month Year]'. Please enter the date on which you consulted the system.
    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 2020. 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 2020. 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

    Plants and People Africa
    Common Names from Plants and People Africa http://www.plantsandpeopleafrica.com/
    © Plants and People Africa http://www.plantsandpeopleafrica.com http://creativecommons.org/licenses/by/3.0/