1. Family: Rubiaceae Juss.
    1. Mitriostigma Hochst.

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

    [FZ]

    Rubiaceae, D.M.Bridson & B.Verdcourt. Flora Zambesiaca 5:3. 2003

    Habit
    Shrubs or small trees.
    Leaves
    Leaves petiolate; domatia absent or present as small tufts of hairs in the axils of the lateral nerves; stipules green in dry state, erect, persistent, scarcely connate at the base.
    Inflorescences
    Inflorescences of small cymes, lateral at successive nodes (TAB. 75/6) or axillary on both sides of the stem at the same node (not in the Flora Zambesiaca area), moderately lax or condensed; bracteoles present.
    Flowers
    Flowers hermaphrodite, 5-merous, subsessile to shortly pedicellate.
    Calyx
    Calyx tube turbinate to ellipsoid; limb-tube with a distinct tubular part and narrowly triangular lobes.
    Corolla
    Corolla white, or red or purple (not in the Flora Zambesiaca area), glabrous outside; tube not markedly long, cylindrical at the base and campanulate or funnel-shaped above or cylindrical and widening only near apex, ± glabrous to sparsely pubescent within; lobes short and erect or longer and erect or spreading.
    Stamens
    Stamens inserted in broad part of corolla tube; anthers subsessile, attached near the base, entirely included or up to 2/3 exserted, shortly apiculate; pollen in tetrads.
    Pistil
    Ovary 2-locular; placentas rather fleshy, subpendulous, bearing 6–25 ovules, ovules not immersed; style slender, glabrous; pollen presenter included or exserted, winged, mitriform or scarcely so at apex, shortly bifid.
    Fruits
    Fruit globose to ellipsoid, crowned by a persistent calyx limb.
    Seeds
    Seeds quite large, 4.5–6 mm across, somewhat compressed or not, fleshy; testa ornamented with fine narrow reticulations.
    [FTEA]

    Rubiaceae, B. Verdcourt. Flora of Tropical East Africa. 1976

    Habit
    Small shrubs
    Leaves
    Leaves petiolate; domatia absent or present as small hairy tufts in the axils of the lateral nerves; stipules green in dry state, erect, persistent, scarcely connate at base
    Flowers
    Flowers hermaphrodite, 5-merous, subsessile to shortly pedicellate in small cymes, lateral at successive nodes or axillary, moderately lax or condensed; bracteoles present
    Calyx
    Calyx-tube turbinate to ellipsoid; limb with distinct tubular part and narrowly triangular lobes
    Corolla
    Corolla usually white, glabrous outside; tube not markedly long, cylindrical at base and campanulate or funnel-shaped above or cylindrical and widening only near apex, ± glabrous to sparsely pubescent inside; lobes short and erect or larger and erect or spreading
    Stamens
    Stamens inserted in broad part of corolla-tube; anthers subsessile, attached near the base, entirely included or up to 2/3-exserted, shortly apiculate
    Pistil
    Style slender, glabrous; stigmatic club included or exserted, winged, mitriform or scarcely so, shortly bifid at apex
    Ovary
    Ovary 2-locular; placentas rather fleshy, subpendulous, bearing 6–12 ovules, not immersed in placental tissue
    Fruits
    Fruit globose to ellipsoid, crowned by persistent calyx-limb
    Seeds
    Seeds quite large, 4.5–6 mm. across, somewhat compressed or not, fleshy; testa ornamented with fine narrow reticulations.

    Images

    Distribution

    Native to:

    Cameroon, Cape Provinces, Gulf of Guinea Is., Kenya, KwaZulu-Natal, Mozambique, Tanzania

    Mitriostigma Hochst. appears in other Kew resources:

    First published in Flora 25: 235 (1842)

    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 of West Tropical Africa
    • —F.T.A. 3: 111.
    Flora Zambesiaca
    • Verdcourt in Kew Bull. 42: 245–250 (1987).
    • Dyer in Gen. S. African Fl. Pl. 1: 612 (1975).
    • Keay in Bull. Jard. Bot. État 28: 41 (1958).
    • in Flora 25: 235 (1842).
    Flora of Tropical East Africa
    • in Flora 25: 235 (1842)

    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 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