1. Family: Melastomataceae Juss.
    1. Genus: Tristemma Juss.
      1. Tristemma leiocalyx Cogn.

        This species is accepted, and its native range is W. Central Tropical Africa to Uganda.

    [FTEA]

    Melastomataceae, G. E. Wickens. Flora of Tropical East Africa. 1975

    Habit
    Soft woody shrub forming a dense mass of prostrate stems, rooting at the nodes, with vertical shoots up to 1.5 m. high; stem 4-angled, lightly strigose.
    Leaves
    Leaf-lamina ovate-elliptic, up to 10.5 cm. long and 5.5 cm. wide, shortly acuminate, base shortly attenuate to subtruncate, shortly strigose on both surfaces; nerves 5, subprominent on both surfaces; petiole up to 3 cm. long.
    Inflorescences
    Inflorescence terminal or axillary; flowers 1–3, subsessile; bracts broadly ovate, acute, 2–4 mm. long, membranaceous, strigose.
    Calyx
    Calyx-tube tubular-campanulate, 6–7 mm. long, 3–3.5 mm. in diameter, glabrous; lobes narrowly triangular, 2–3 mm. long, margins shortly ciliate.
    Corolla
    Petals obovate, 6–8 mm. long, 5–6 mm. wide, white or pink.
    Stamens
    Stamens equal, 5 mm. long; anthers 2 mm. long; connective produced 0.6 mm., with 2 anterior tubercles 0.5 mm. long; filaments 2–3 mm. long.
    Pistil
    Ovary ovoid, ± 5 mm. long, apex setose; style ± 6 mm. long.
    Figures
    Fig. 6/13, p. 18.
    Habitat
    Marshy clearings in lowland rain-forest, riverine and swamp forest; 1140–1320 m.
    Distribution
    U2 U4
    [FWTA]

    Melastomataceae, Hutchinson and Dalziel. Flora of West Tropical Africa 1:1. 1954

    Habit
    An erect hairy herb
    Flowers
    Fairly large rose flowers.

    Images

    Distribution

    Native to:

    Cameroon, Central African Repu, Congo, Equatorial Guinea, Gabon, Rwanda, Sudan, Uganda, Zaïre

    Tristemma leiocalyx Cogn. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jan 1, 2006 Cheek, M. [11751], Cameroon K000023187
    Jan 1, 1973 Schrveinfurth, G. [3323] K000313232
    Hens [13], Congo K000312737

    First published in Monogr. Phan. 7: 1179 (1891)

    Accepted by

    • Roskov Y. & al. (eds.) (2018). Species 2000 & ITIS Catalogue of Life Naturalis, Leiden, the Netherlands.

    Literature

    Flora of Tropical East Africa
    • A. & R.. Fernandes in Bol. Soc. Brot., sér.2, 34: 68, 191 (1960).
    • Gilg in Monographieen Afrikanischer Pflanzen-Familien und Gattungen 2: 24 (1898).
    • Cogn. in A. & C. DC., Monogr. Phan. 7: 1179 (1891).

    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 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