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  1. Family: Rubiaceae Juss.
    1. Aulacocalyx Hook.f.

      1. This genus is accepted, and its native range is Tropical Africa.

    [FZ]

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

    Habit
    Trees or shrubs with branching similar to that of many Rothmannia species and characteristic evergreen foliage.
    Leaves
    Leaves opposite, petiolate, thinly coriaceous, usually with ± transversely parallel venation; domatia absent or present and pubescent; stipules triangular, acute or acuminate, soon falling.
    Inflorescences
    Inflorescences 1–several- or occasionally ± many-flowered on very short terminal branchlets subtended by a single leaf (TAB. 75/3&4) but often lateral and pseudoaxillary owing to the sympodial growth of the stem; bracts small.
    Calyx
    Calyx tube ovoid to cylindrical; limb-tube shortly cylindrical with 5 triangular to lanceolate teeth.
    Corolla
    Corolla pubescent to densely appressed silky outside, salver-shaped with narrow cylindrical tube but in some species (formerly referred to Dorothea) the corolla tube is split unilaterally giving the corolla an irregular appearance; corolla lobes 5, contorted to the left, ovate to lanceolate.
    Anthers
    Anthers linear, elongate, apiculate, sessile, usually medifixed, included or slightly to completely exserted.
    Pollen
    Pollen grains simple.
    Pistil
    Ovary 2-locular; each locule with a pendulous placenta carrying 2–10 embedded ovules; style filiform or elongate-clavate, glabrous or rarely pubescent, apical part acting as pollen presenter sometimes 10-ribbed, and divisible into lobes up to 4–5 mm long bearing the stigmatic surfaces; the whole style is divisible almost to the base if pulled gently.
    Fruits
    Fruit baccate, 1–several-seeded, subglobose, crowned by the persistent calyx limb.
    Seeds
    Seeds subglobose with abundant endosperm, devoid of a testa.

    Images

    Distribution

    Native to:

    Angola, Cameroon, Central African Repu, Congo, Equatorial Guinea, Gabon, Ghana, Guinea, Gulf of Guinea Is., Ivory Coast, Liberia, Nigeria, Sierra Leone, Tanzania, Zambia, Zaïre

    Accepted Species

    Synonyms

    Other Data

    Aulacocalyx Hook.f. appears in other Kew resources:

    Bibliography

    First published in Hooker's Icon. Pl. 12: t. 1126 (1873)

    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.
    • Govaerts, R. (1995). World Checklist of Seed Plants 1(1, 2): 1-483, 1-529. MIM, Deurne.

    Literature

    Flora of West Tropical Africa

    • K. Schum. in E. & P. Pflanzenfam. 4, 4: 87 (1891).
    • —F.T.A. 3: 129

    Flora Zambesiaca

    • Figueiredo in Kew Bull. 52: 637–658 (1997).
    • Robbrecht & Puff in Bot. Jahrb. Syst. 108: 124 (1986).
    • N. Hallé in Fl. Gabon, no. 17, Rubiacées (2e partie): 154 (1970).
    • E.M.A. Petit in Bull. Jard. Bot. État 32: 183 (1962).
    • in Bentham & J.D. Hooker, Gen. Pl. 2: 109 (1873)
    • in Hooker’s Icon. Pl. 12: 25 (1873).

    Sources

    Flora Zambesiaca
    Flora Zambesiaca
    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