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  1. Family: Rubiaceae Juss.
    1. Genus: Spermacoce L.
      1. Spermacoce ruelliae DC.

        This species is accepted, and its native range is Tropical Africa.

    [FTEA]

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

    Habit
    Annual unbranched to branched herb 3–60 cm. tall; stems 4-ribbed, ± densely covered with spreading white hairs.
    Leaves
    Leaf-blades narrowly lanceolate to elliptic-lanceolate, 1.8–7(–9.5) cm. long, 0.25–1.9(–2.1) cm. wide, tapering acute at the apex, cuneate at the base, sparsely to densely ± scabridly hairy or rarely glabrous on both surfaces, the margins always very scabrid with short hairs, the nerves impressed above and surface somewhat bullate; true petiole absent; stipule-sheath 3.5–5 mm. long, densely hairy, with 5–9 setae 0.4–1.1 cm. long.
    Flowers
    Flowers in few-many-flowered clusters at the nodes, up to 1.3–1.8 cm. in diameter in fruiting stage.
    Calyx
    Calyx-tube obconic, 2.2 mm. long, hairy above; lobes 4, narrowly triangular-lanceolate, 2 shorter narrower ones alternating with 2 longer wider ones 2–4(–7) mm. long, 0.5–1.6 mm. wide, scabrid on the margins.
    Corolla
    Corolla white or pink; tube 3–5(–7) mm. long; lobes triangular or ovate-triangular, 1.8–2.5(–5) mm. long, 1.2–1.8 mm. wide, with a few hairs at the apex outside.
    Filaments
    Filaments exserted 1–2 mm.
    Pistil
    Style exserted 2–4 mm.; stigma capitate.
    Fruits
    Capsule ellipsoid, 3–4 mm. long, 2.1–2.5 mm. wide, hairy above or all over.
    Seeds
    Seeds chestnut-brown, oblong-ellipsoid, 2.4–2.8 mm. long, 1.3 mm. wide, 0.6 mm. thick, convex dorsally, with a wide ventral excavation which is usually filled with white cellular material for most of its length but basally narrowed and there filled with rhaphides, finely rugulose.
    Figures
    Fig. 51/24, p. 344.
    Habitat
    Dry places, bare ground, grassland; 1200 m.
    Distribution
    U1 U2 U4 West Africa from Senegal to Angola, Chad, Central African Republic, Zaire, Sudan
    [FWTA]

    Rubiaceae, F. N. Hepper & R. W. J. Keay. Flora of West Tropical Africa 2. 1963

    Habit
    Erect herb with or without branches, scabrid and coarsely pubescent about 1 ft. high
    Flowers
    Flowers white, sometimes pink
    Note
    A weed.

    Distribution

    Native to:

    Angola, Benin, Burkina, Cameroon, Central African Repu, Chad, Congo, Gabon, Gambia, Ghana, Guinea, Guinea-Bissau, Gulf of Guinea Is., Ivory Coast, Liberia, Mali, Nigeria, Senegal, Sierra Leone, Sudan, Togo, Uganda, Zaïre

    Synonyms

    Other Data

    Spermacoce ruelliae DC. appears in other Kew resources:

    Bibliography

    First published in Prodr. 4: 554 (1830)

    Accepted by

    • Darbyshire, I., Kordofani, M., Farag, I., Candiga, R. & Pickering, H. (eds.) (2015). The Plants of Sudan and South Sudan: 1-400. Kew publishing, Royal Botanic Gardens, Kew.
    • Jongkind, C. (2014). Fauna & Flora of Liberia, flowering plant species list www.liberianfaunaflora.org.
    • Figueiredo, E. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.
    • Sosef, M.S.M. & al. (2006). Check-list des plantes vasculaires du Gabon Scripta Botanica Belgica 35: 1-438.
    • Akoègninou, A., van der Burg, W.J. & van der Maesen, L.J.G. (eds.) (2006). Flore Analytique du Bénin: 1-1034. Backhuys Publishers.
    • Govaerts, R. (2003). World Checklist of Selected Plant Families Database in ACCESS: 1-216203. The Board of Trustees of the Royal Botanic Gardens, Kew.
    • Brunel, J.F., Hiepo, P. & Scholz, H. (eds.) (1984). Flore Analytique du Togo Phanérogames: 1-751. GTZ, Eschborn.

    Literature

    Kew Backbone Distributions

    • Jongkind, C. (2014). Fauna & Flora of Liberia, flowering plant species list www.liberianfaunaflora.org.
    • Sosef, M.S.M. & al. (2006). Check-list des plantes vasculaires du Gabon Scripta Botanica Belgica 35: 1-438.
    • Akoègninou, A., van der Burg, W.J. & van der Maesen, L.J.G. (eds.) (2006). Flore Analytique du Bénin: 1-1034. Backhuys Publishers.
    • Ruhsam, M in Ruhsam, M. (2005). Survey of all the Rubiaceae specimens at the Royal Botanic Gardens, Kew.
    • Lebrun, J.P. (1973). Énumération des plantes vasculaires du Sénégal: 1-209. Maisons Alfort: Institut d'élevage et de médecine vétérinaire des pays tropicaux.

    Flora of Tropical East Africa

    • Hiern in Flora of Tropical Africa 3: 238 (1877).
    • DC., Prodr. 4: 554 (1830).

    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

    Kew Backbone Distributions
    The International Plant Names Index and World Checklist of Selected Plant Families 2020. 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 2020. 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