1. Family: Apocynaceae Juss.
    1. Riocreuxia Decne.

      1. This genus is accepted, and its native range is Tanzania to S. Africa.

    [FTEA]

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

    Habit
    Perennial herbs with somewhat woody rootstock, producing a tuft of slightly fleshy or sub-fusiform roots.
    Exudate
    Latex clear
    Stem
    Stems twining or sometimes suberect and tufted, sometimes becoming woody at base, mostly unifariously (rarely bifariously) puberulous, rarely puberulous all round
    Leaves
    Leaves opposite, petiolate, base conspicuously cordate; interpetiolar stipules of tufts of whitish or brownishtranslucent hairs. Flowers in laxly branched cymes or in fascicles at 1, 2 or 3 nodes of peduncle or flowering axis
    Corolla
    Corolla mostly tubular, straight or campanulate, ± inflated at base; lobes 5, linear-attenuate, erect, shorter or longer than tube, mostly connate at tips to form a subglobose cage-like structure.
    Corona
    Corolline corona absent Gynostegial corona (1–)2 seriate, variable, subsessile, stipitate.
    Anthers
    Anthers erect, dorsiventrally compressed, subquadrate, incumbent on the ± globose or ± truncate stylar head, longer or shorter than staminal lobes.
    Pollinia
    Pollinia erect, oblong or elliptic with an acute pellucid margin at apex resembling a small beak, attached in pairs from near base by short caudicles to a small dark-brown corpusculum
    Fruits
    Follicles paired, terete-fusiform, acuminate, usually ± beaded from being constricted between the seeds, glabrous; seed dorsiventrally compressed, linear-elliptic or oblong, curling length-wise on drying to become convex-concave, with a very narrow marginal wing along perimeter, apex with a tuft of white fluffy hairs

    Images

    Distribution

    Native to:

    Angola, Burundi, Cape Provinces, Free State, KwaZulu-Natal, Lesotho, Malawi, Northern Provinces, Rwanda, Swaziland, Tanzania, Zambia, Zimbabwe

    Riocreuxia Decne. appears in other Kew resources:

    First published in A.P.de Candolle, Prodr. 8: 640 (1844)

    Accepted by

    • Goyder, S., Harris, T., Masinde, S., Meve, U. & Venter, J. (2012). Flora of Tropical East Africa, Apocynaceae(2): 1-530.
    • Albers, F. & Meve, U. (eds.) (2002). Illustrated handbook of succulent plants Asclepiadaceae, corr. 2nd printing: 1-318. Springer, Berlin, Heidelberg,New York.

    Literature

    Flora of Tropical East Africa
    • K.B. 60: 410 (2005)
    • Goldblatt & Manning, Cape Plants, Strelitzia 9: 288 (2000)
    • Retief & Herman, Pl. N. Prov. S. Afr., Strelitzia 6: 276 (1997)
    • S. Afr.: 227 (1983);
    • E. & P. Pf 4(2): 273 (1895)
    • E.J. 18, Beibl. 45: 13 (1894)
    • G.P. 2(2): 780 (1876)
    • Harv., Gen. S. Afr. Pl. ed. 2: 240 (1868)
    • DC., Prodr. 8: 640 (1844)

    Sources

    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 2019. 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 2019. 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