1. Family: Rubiaceae Juss.
    1. Phellocalyx Bridson

      1. This genus is accepted, and its native range is Tanzania to Mozambique.

    [FZ]

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

    Habit
    Shrub or small tree; branches pubescent when young.
    Leaves
    Leaves opposite, petiolate, papery, restricted to new growth at apex of branches; stipules ovate-triangular with colleters and silky hairs within.
    Flowers
    Flowers precocious, hermaphrodite, solitary, terminal on short lateral branches (but may be exceeded by the development of an axillary branch), sessile, large.
    Calyx
    Calyx 6–8-ribbed, covered with very short fleshy hairs when young, which soon erode to reveal a rather flaky corky underlayer; tube campanulate; limb entire in bud, acuminate, rupturing into 2–3 lobes at anthesis, densely covered with silky hairs with large interspersed colleters within.
    Corolla
    Corolla tube short in proportion to the lobes, cylindrical to funnel-shaped; lobes 8–11, narrowly oblong, spreading, overlapping to the right in bud (as seen from outside).
    Anthers
    Anthers 8–11, sessile, attached near the base, inserted at throat, exserted by ± two thirds the length of the corolla lobes, linear, shortly acuminate.
    Pollen
    Pollen grains simple.
    Disc
    Disk annular.
    Pistil
    Ovary 4-locular (or ?incompletely so); septa thinly membranous, adhering to the placentas; placentas 4, elongate, fleshy, attached at the apex to the style base; ovules numerous impressed on the placentas; style slightly swollen, glabrous; pollen presenter exserted, cylindrical, 2-winged, bifid at apex with each lobe emarginate.
    Fruits
    Fruit large, globular, smooth, 1-locular (see Bridson (1980) fig. 2A&B), calyx limb caducous; pericarp thick.
    Seeds
    Seeds numerous, embedded in pulpy placental tissue (see Bridson (1980) fig. 2C&D), sublenticular; testa very thin, finely rugulose; endosperm entire, horny; embryo straight.
    [FTEA]

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

    Habit
    Shrub or small tree; branches pubescent when young
    Leaves
    Leaves opposite, petiolate, membranous, restricted to new growth at apex of stems; domatia present as white hairy tufts in the nerve-axils; stipules interpetiolar, ovate-triangular, with colleters and silky hairs inside
    Flowers
    Flowers precocious, hermaphrodite, solitary, terminal on short lateral branches (but may be exceeded by the development of an axillary branch), sessile, large
    Calyx
    Calyx 6–8-ribbed, covered with very short fleshy hairs when young, which soon erode to reveal a rather flaky corky underlayer; tube campanulate; limb entire in bud, acuminate, rupturing into 2–3 lobes at anthesis, densely covered with silky hairs with large interspersed colleters inside
    Corolla
    Corolla-tube short in proportion to the lobes, cylindrical to funnel-shaped; lobes 8–11, narrowly oblong, spreading, overlapping to the right in bud (as seen from outside)
    Anthers
    Anthers 8–11, sessile, attached near the base, inserted at throat, exserted, ± two-thirds the length of the corolla-lobes, linear, shortly acuminate; pollen-grains simple
    Pistil
    Ovary 4-locular (or ? incompletely so); septa thinly membranous, adhering to the placentas; placentas 4, elongate, fleshy, attached at the apex to the style-base; ovules numerous, impressed on the placentas; disc annular; style slightly swollen, glabrous; stigmatic club exserted, cylindrical, 2-winged, bifid at apex with each lobe emarginate
    Fruits
    Fruit large, globular, smooth, 1-locular; calyx-limb caducous; pericarp thick
    Seeds
    Seeds numerous, embedded in pulpy placental tissue, sublenticular; testa very thin, finely rugulose; endosperm entire, horny; embryo straight.

    Images

    Distribution

    Native to:

    Malawi, Mozambique, Tanzania

    Phellocalyx Bridson appears in other Kew resources:

    First published in Kew Bull. 35: 315 (1980)

    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 Zambesiaca
    • in F.T.E.A., Rubiaceae: 519 (1988).
    • in Kew Bull. 35: 315–321 (1980)
    Flora of Tropical East Africa
    • in K.B. 35: 315 (1980)

    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