1. Family: Apocynaceae Juss.
    1. Diplorhynchus Welw. ex Ficalho & Hiern

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

    [FZ]

    Apocynaceae, A. J. M. Leeuwenberg & F. K. Kupicha et al. Flora Zambesiaca 7:2. 1985

    Habit
    Shrub or tree with white or yellow latex.
    Stem
    Branchlets usually dotted with paler lenticels.
    Leaves
    Leaves opposite or rarely subopposite, those of a pair equal, often fairly long-petiolate.
    Inflorescences
    Inflorescence thyrsoid, terminal and in axils of the upper leaves, lax to congested; bracts obscure.
    Flowers
    Flowers actinomorphic except for the sometimes slightly unequal sepals.
    Calyx
    Sepals ovate, acute, connate at the base.
    Corolla
    Corolla hypocrateriform; tube usually much longer than the calyx, nearly cylindrical, ventricose in the upper half and constricted at the mouth, inside velutinous to sericeous except for the glabrous base; lobes narrowly oblong or narrowly obovate, inside at the base pilose or sericeous, overlapping to the left in bud, spreading.
    Stamens
    Stamens included; inserted near the middle of the corolla tube; filaments filiform, much widened at the apex; anthers triangular, completely fertile, mucronate, sagittate at the base.
    Ovary
    Ovary of two basally connate carpels; 4 ovules on an adaxial placenta in each carpel; clavuncula subcylindrical.
    Fruits
    Fruit composed of two obliquely oblong follicles, outside dotted with many paler lenticels, dehiscent at the adaxial side.
    Seeds
    Seeds laterally compressed, obliquely oblong, long-winged at the apex; wings of the two outer seeds directed towards the base and those of the two central seeds towards the apex of the fruit.
    [FTEA]

    Apocynaceae, E.A. Omino. Flora of Tropical East Africa. 2002

    Habit
    Trees or shrubs, sometimes lianas, with white or yellow sticky latex
    Leaves
    Leaves (sub-) opposite
    Inflorescences
    Inflorescence terminal or in the axils of upper leaves, thyrsoid, lax to congested
    Flowers
    Flowers fragrant, actinomorphic except for the slightly unequal sepals
    Corolla
    Corolla salver-shaped; tube with a subcampanulate upper and a cylindrical narrower basal portion, constricted at the throat; lobes overlapping to the left, with corona at the base;
    Stamens
    Stamens included; anthers completely fertile
    Pistil
    Ovary of two free carpels, coherent at the base, placentation parietal, ovules 4 in each carpel; pistil head with a pubescent, basal stigmatic subcylindrical part and a bifid stigmoid apex
    Fruits
    Fruits composed of two woody follicles, coherent at the base, 4-seeded
    Seeds
    Seeds compressed, obliquely oblong, dorsal side straight, ventral side abruptly curved, long-winged at apex.

    Images

    Distribution

    Native to:

    Angola, Botswana, Caprivi Strip, Congo, Malawi, Mozambique, Namibia, Northern Provinces, Tanzania, Zambia, Zaïre

    Diplorhynchus Welw. ex Ficalho & Hiern appears in other Kew resources:

    First published in Trans. Linn. Soc. London, Bot. 2: 22 (1881)

    Accepted by

    • Govaerts, R. (2003). World Checklist of Selected Plant Families Database in ACCESS: 1-216203. The Board of Trustees of the Royal Botanic Gardens, Kew.

    Literature

    Flora Zambesiaca
    • in Trans. Linn. Soc., Ser. 2, Bot. 2: 22 (1881).
    Flora of Tropical East Africa
    • Plaizier in Meded. Landbouwhogeschool 80 (12): 28–35 (1980)
    • in Trans. Linn. Soc., Bot. 2, 2: 22 (1881)

    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

    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