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  1. Family: Rubiaceae Juss.
    1. Genus: Aulacocalyx Hook.f.
      1. Aulacocalyx laxiflora E.M.A.Petit

        This species is accepted, and its native range is W. Tanzania to Zambia.

    [FZ]

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

    Habit
    Shrub or small tree 2–8 m tall with brown glabrous or ± pubescent stems, the bark ± flaky.
    Leaves
    Leaves 1.5–15 × 0.4–6 cm, elliptic or elliptic-oblong to elliptic-oblanceolate, shortly acuminate at the apex, cuneate at the base, glabrous and ± shiny above, glabrous beneath or with very sparse hairs on nerves and midrib and with hairy domatia; costa impressed above and venation finely raised beneath; petiole 2–5 mm long; stipules narrowly triangular-subulate, 4–5 mm long, acuminate, hairy inside.
    Inflorescences
    Inflorescences appearing axillary and terminal, 3–10-flowered; peduncle 2–7 mm long, the secondary axes and pedicels 5–9 mm long; all axes pubescent to densely hairy; bracts and bracteoles c. 3 × 2 mm, ovate- triangular, acuminate.
    Flowers
    Flowers scented.
    Calyx
    Calyx densely pubescent; tube 1.5–2.5 mm long; limb-tube 2–3 mm long; lobes (1) 2–5 mm long, linear.
    Corolla
    Corolla white; tube 0.5–2 cm long, cylindrical, appressed pubescent outside; lobes 1.2–2 cm × 3–6 mm, linear-oblong, appressed silky pubescent outside.
    Anthers
    Anthers c. 1 cm long.
    Style
    Style 0.7–2.4 cm long.
    Pollen presenter
    The pollen presenter/stigmatic lobes 7–8 mm long.
    Fruits
    Fruit 1.2–1.3 cm in diameter, globose, glabrous, ± crowned by the persistent calyx limb.
    [FTEA]

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

    Habit
    Shrub or small tree 2–8 m. tall with ± glabrous elliptic-oblong leaves to 15 × 6 cm.
    Inflorescences
    Inflorescences 3–10-flowered, the corolla white with adpressed pubescent cylindrical tube 0.5–2 cm. long, otherwise very similar to Heinsenia diervilleoides (see p. 730).
    Distribution
    T4

    Distribution

    Native to:

    Tanzania, Zambia, Zaïre

    Other Data

    Aulacocalyx laxiflora E.M.A.Petit appears in other Kew resources:

    Bibliography

    First published in Bull. Jard. Bot. État Bruxelles 31: 4 (1961)

    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 Tropical East Africa

    • Petit in Bulletin du Jardin Botanique de l'État a Bruxelles 31: 4 (1961).

    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 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