1. Family: Rubiaceae Juss.
    1. Virectaria Bremek.

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

    [FTEA]

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

    Habit
    Annual or perennial herbs or subshrubby herbs with erect or procumbent glabrescent to stiffly hairy stems from a fibrous rootstock
    Leaves
    Leaves paired; stipules small, entire, deltoid, or fimbriated with linear setae from a short base
    Flowers
    Flowers small, hermaphrodite, never dimorphic, in few–many-flowered cymose clusters at the apices of the main shoots
    Calyx
    Calyx-tube ovoid or urceolate, often bristly hairy; lobes 5–6, equal or unequal, spathulate, filiform or lanceolate with small glands between each pair
    Corolla
    Corolla-tube filiform to narrowly infundibuliform; lobes 4–6(–7), deltoid to lanceolate, suberect; throat practically glabrous save for an obscure ring of hairs some distance below the orifice
    Stamens
    Stamens 4–6, much exserted
    Pistil
    Ovary bilocular; ovules attached to placentas which are affixed to the central partition; style much exserted, often overtopping the corolla-lobes; stigma subcapitate
    Disc
    Disc cylindrical or consisting of two separate cones, Capsule very characteristic, subglobose, splitting in a plane at right-angles to the central partition into 2 valves one of which usually falls away entirely but the other remains attached to the rachis by means of a woody pedicle
    Seeds
    Seeds small, brownish, subglobose, reticulately pitted.
    [FZ]

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

    Habit
    Annual or perennial herbs or subshrubby herbs with erect or procumbent glabrescent to stiffly hairy stems from a fibrous rootstock.
    Leaves
    Leaves paired.
    Stipules
    Stipules small, limbs free, entire, deltoid, or fimbriated with linear setae from a short base.
    Flowers
    Flowers small, hermaphrodite, never dimorphic, in few- to many-flowered cymose clusters at the apices of the main shoots.
    Calyx
    Calyx tube ovoid or urceolate, often bristly hairy; limb-tube absent; lobes 5–6, equal or unequal, spathulate, filiform or lanceolate with small glands between each pair.
    Corolla
    Corolla tube filiform to narrowly infundibuliform, lobes 4–6(7), deltoid to lanceolate, suberect; throat practically glabrous except for an obscure ring of hairs some distance below the orifice.
    Stamens
    Stamens 4–6, much exserted.
    Pistil
    Ovary bilocular; ovules attached to placentas which are affixed to the septum; style much exserted, often overtopping the corolla lobes; stigma subcapitate.
    Disc
    Disk cylindrical or consisting of two separate cones.
    Fruits
    Capsule very characteristic, subglobose, splitting in a plane at right angles to the central partition into 2 valves one of which often falls away entirely but the other remains attached to the rhachis by means of a woody pedicel.
    Seeds
    Seeds small, brownish, subglobose, reticulately pitted.

    Images

    Distribution

    Native to:

    Angola, Benin, Burkina, Burundi, Cabinda, Cameroon, Central African Repu, Congo, Equatorial Guinea, Gabon, Ghana, Guinea, Guinea-Bissau, Gulf of Guinea Is., Ivory Coast, Liberia, Mali, Nigeria, Rwanda, Senegal, Sierra Leone, Tanzania, Togo, Uganda, Zambia, Zaïre

    Virectaria Bremek. appears in other Kew resources:

    First published in Verh. Kon. Ned. Akad. Wetensch., Afd. Natuurk., Sect. 2, 48(2): 21 (1952)

    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 of West Tropical Africa
    • in Verh. K. Nederl. Akad. Wetensch., Afd. Natuurk., sect. 2, 48: 21 (1952).
    Flora Zambesiaca
    • Dessein et al. in Bot. J. Linn. Soc. 137: 1–29 (2001).
    • Verdcourt in Bull. Jard. Bot. État 28: 242 (1958).
    • Verdcourt in Bull. Jard. Bot. État 23: 35–52 (1953)
    • in Verh. Kon. Ned. Akad. Wetensch., Afd. Natuurk., Sect. 2, 48: 21 adnot. (1952).
    Flora of Tropical East Africa
    • B.J.B.B. 28: 242 (1958)
    • Verdc. in B.J.B.B. 23: 35–52 (1953)
    • in Verh. Nederl. Akad. Wet Afd. Nat., ser. 2, 48: 21, adnot (1952)

    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