1. Family: Apocynaceae Juss.
    1. Genus: Tylophora R.Br.
      1. Tylophora cameroonica N.E.Br.

        This species is accepted, and its native range is Benin to Uganda.

    [FWTA]

    Asclepiadaceae, A. A. Bullock. Flora of West Tropical Africa 2. 1963

    Habit
    A glabrous climber
    Leaves
    Very broad leaves
    Flowers
    Small purple flowers in clusters along the branches of large diffuse paniculate cymes.
    [FTEA]

    Apocynaceae (part 2), David Goyder, Timothy Harris, Siro Masinde, Ulrich Meve, Johan Venter. Flora of Tropical East Africa, 2012

    Habit
    Robust vine to several metres.
    Stem
    Stems at least 5 mm in diameter, glabrous or minutely tomentose with golden hairs
    Leaves
    Leaves semi-succulent; petiole 1–3 cm long, glabrous or pubescent; lamina elliptic to suborbicular, 8–16 × (4–)5–13 cm, apex rounded and with a short apiculus, base cordate, completely glabrous or with indumentum of minute hairs on margins and on principal veins beneath
    Inflorescences
    Inflorescences extra-axillary, with 1–several much-branched and generally congested (in the Flora area) panicles at each node, inflorescence axes subglabrous to minutely tomentose.
    Peduncles
    Peduncles (to 1st branching point) 2–4.5 cm long.
    Bracts
    Bracts triangular, minute.
    Pedicel
    Pedicels 3–5 mm long, minutely tomentose with golden hairs
    Calyx
    Calyx lobes broadly triangular, ± 1 mm long, minutely tomentose with golden hairs
    Corolla
    Corolla pink or reddish purple, rotate, united at the base, sparsely pubescent with white hairs on upper surface, glabrous beneath; corolla lobes ovate, ± 2–3 × 2 mm, apex rounded
    Stamens
    Staminal corona lobes maroon or purple, fleshy, ± 0.5 mm long, shorter than the gynostegium and radiating from it
    Anthers
    Anther wings 0.2 mm long
    Pollinarium
    Pollinaria minute, corpusculum ovoidsubcylindrical, ± 0.05 mm long; translator arms slender, terete, somewhat curved, ± 0.05 mm long.
    Pollinia
    Pollinia ovoid, ± 0.1 mm long
    Style
    Stylar head flat
    Fruits
    Follicles mostly occuring singly, to ± 8 × 1 cm, narrowly lanceolate in outline, smooth
    Seeds
    Seeds oblong to ovate, 6–7 × 3 mm, winged and with a minutely pubescent convex face and a glabrous concave face; coma 1.5 cm long.
    Ecology
    Moist forest; 1200–1300 m
    Note
    Most collections of this species are robust climbers with minutely golden-tomentose stems and inflorescences – characters used by Bullock (K.B. 9: 585 (1955)) in describing Tylophora glauca. Collections of T. cameroonica sensu Bullock have more diffuse, subglabrous inflorescences and glabrous stems. However, these characters are inconsistent even in the specimens Bullock cited from Uganda. While extreme forms are indeed distinctive, many specimens are more difficult to place. Variation in inflorescence architecture parallels that in T. anomala, so the more slender collections from Cameroon ( T. cameroonica sensu stricto) are regarded here as merely a distinctive form within a more broadly defined species.
    Distribution
    Flora districts: U2 U4 Range: Scattered localities from Ivory Coast to Cameroon and E Congo-Kinshasa
    [FWTA]

    Asclepiadaceae, A. A. Bullock. Flora of West Tropical Africa 2. 1963

    Habit
    A climber very like the above (Tylophora cameroonica), but with less expanded panicles, the purple flowers larger and fewer, stems, inflorescences and veins golden-tomentose and the leaves very glaucous.
    [FTEA]
    Use
    Cultivated as an ornamental in parts of Uganda

    Images

    Distribution

    Native to:

    Benin, Cameroon, Congo, Ivory Coast, Nigeria, Uganda, Zaïre

    Tylophora cameroonica N.E.Br. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Dec 1, 2004 Gosline, G. [421], Cameroon K000199918
    Jan 1, 1993 Tchouto (Mbatchou), P. [60], Cameroon K000086199
    Jan 1, 1954 Dalziel, J.M. [8236], Cameroon K000028328
    Jan 1, 1954 Dalziel, J.M. [8236], Cameroon K000028329
    Johnston, H.H. [s.n.] K000305333 Unknown type material
    Onochie, C. [FHI 33430], Nigeria Tylophora glauca 22855.000
    Troupin, G. [3719], Congo, DRC Tylophora glauca 1085.000
    Onochie, C.F.A. [FHI 33430], Nigeria Tylophora glauca K000305341 holotype
    Onochie, C.F.A. [FHI 33430], Nigeria Tylophora glauca K000305340 holotype

    First published in Bull. Misc. Inform. Kew 1895: 257 (1895)

    Accepted by

    • Goyder, S., Harris, T., Masinde, S., Meve, U. & Venter, J. (2012). Flora of Tropical East Africa, Apocynaceae(2): 1-530.
    • Onana, J.M. (2011). The vascular plants of Cameroon a taxonomic checklist with IUCN assessments: 1-195. National herbarium of Cameroon, Yaoundé.
    • 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.
    • Hepper, F.N. (ed.) (1963). Flora of West Tropical Africa, ed. 2, 2: 1-544.

    Literature

    Flora of West Tropical Africa
    • Bullock in Kew Bull. 9: 585 (1955).
    • F.T.A. 4, 1: 407
    • in Kew Bull. 1895: 258
    Kew Backbone Distributions
    • Goyder, S., Harris, T., Masinde, S., Meve, U. & Venter, J. (2012). Flora of Tropical East Africa, Apocynaceae(2): 1-530.
    • Onana, J.M. (2011). The vascular plants of Cameroon a taxonomic checklist with IUCN assessments: 1-195. National herbarium of Cameroon, Yaoundé.
    • 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.
    Flora of Tropical East Africa
    • F.W.T.A. ed. 2, 2: 96 (1963).
    • F.T.A. 4(1): 407 (1903)
    • K.B. 1895: 258 (1895)

    Sources

    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
    '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 2018. 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 2018. 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