1. Family: Stilbaceae Kunth
    1. Nuxia Comm. ex Lam.

      1. This genus is accepted, and its native range is Tropical & S. Africa, W. Indian Ocean, Arabian Peninsula.

    [FTEA]

    Loganiaceae, E. A. Bruce and J. Lewis. Flora of Tropical East Africa. 1960

    Habit
    Shrubs or small trees, glandular and ± hairy
    Leaves
    Leaves petiolate; stipules reduced to a mere line
    Flowers
    Flowers 4-merous, small and numerous, in cymose panicles
    Calyx
    Calyx glandular, often externally; lobes valvate, persistent
    Corolla
    Corolla-tube ± cylindrical, circumscissile just above the persistent base; lobes imbricate in aestivation
    Stamens
    Stamens inserted just below mouth of corolla-tube, longly exserted; filaments filiform
    Ovary
    Ovary 2-locular; ovules numerous in rows on axil placentas
    Fruits
    Capsule ovoid or obloid, septicidally dehiscent and the valves halving above
    Seeds
    Seeds small and numerous; endosperm fleshy; embryo straight.
    [FZ]

    Loganiaceae, A. J. M. Leeuwenberg. Flora Zambesiaca 7:1. 1983

    Habit
    Shrubs or trees.
    Stem
    Branches unarmed, with fissured bark, not lenticellate. Trunk often fluted.
    Leaves
    Leaves opposite, ternate, quaternate, or in some lateral branches occasionally alternate, petiolate (or only in N.gracilis often sessile).
    Inflorescences
    Inflorescence terminal, thyrsoid, but often dichotomously branched. Lower bracts mostly leafy, the others small, often scale–like. Ultimate branches topped by solitary flowers or by heads of three or more flowers which may be globose.
    Flowers
    Flowers 4–merous, actinomorphic except for the more or less irregularly lobed calyx.
    Calyx
    Calyx campanulate to cylindrical, 4–lobed; lobes much shorter than the tube, triangular, acute or rarely obtuse or rounded, entire or sometimes tridenate (only observed in N. floribunda and N. gracilis), erect or suberect, sometimes two or two pairs coherent or partially united; flowers with almost regularly 4–lobed calyx or the irregularly lobed calyx in a single inflorescence, with minute glandular hairs and often also simple or branched hairs; inner side mostly sericeous to appressed–pubescent.
    Corolla
    Corolla mostly white or creamy, circumscissile, outside with some minute glandular hairs at the base of the lobes and the apex of the tube; inside with a pilose or villose ring of mostly recurved hairs in the throat and with minute glandular hairs in the tube except for its glabrous base (hairs in corolla throat or in tube may be absent on a few occasions, but in those cases never both kinds simultaneously); tube slightly shorter or less often longer than the calyx, cylindrical; lobes oblong, recurved from above the base and there convex and often with a minute callosity, concave and rounded to acute at the apex, entire.
    Stamens
    Stamens well exserted, inserted at the mouth of the corolla tube; filaments only at the very base vilose in a line with the group of hairs on the corolla throat or slightly above or entirely glabrous, straight or curved, geniculate at the base only in N. floribunda; anthers glabrous, 0–5–2 mm. long; cells 2, parallel when young, conspicuously divergent after the pollen has been shed, confluent at the apex, dehiscent throughout by a longitudinal slit.
    Pistil
    Pistil: ovary superior, obcordoid, ovoid, or ellipsoid, mostly slightly laterally compressed, appressedly pubescent or hirto–pubescent, glabrous only in N. floribunda, at the very base, however, always glabrous, surrounded by a narrow disk–like ring formed by the base of the shed corolla, 2–celled; style well exserted, glabrous; stigma small, capitate or occasionally slightly bilobed.
    Placenta
    In each cell one axile peltate placenta with many ovules attached to the middle of the septum.
    Fruits
    Capsule about as long as and included in the persisting calyx or up to about one–third longer, with about the same indumentum as the ovary, bivalved, septicidal, retuse or rounded at the apex; often later longitudinally cleft, the capsule becoming 4–valved.
    Seeds
    Seeds small, medium brown, fusiform, longitudinally striate or reticulate–striate.

    Images

    Distribution

    Native to:

    Angola, Botswana, Burundi, Cameroon, Cape Provinces, Comoros, Djibouti, Eritrea, Ethiopia, Free State, Ghana, Guinea, Gulf of Guinea Is., Ivory Coast, Kenya, KwaZulu-Natal, Liberia, Madagascar, Malawi, Mauritius, Mozambique, Namibia, Nigeria, Northern Provinces, Rwanda, Réunion, Saudi Arabia, Sierra Leone, Somalia, Sudan, Swaziland, Tanzania, Uganda, Yemen, Zambia, Zaïre, Zimbabwe

    Nuxia Comm. ex Lam. appears in other Kew resources:

    First published in Tabl. Encycl.: t. 71 (1791)

    Accepted by

    • Leeuwenberg, A.J.M. (1975). The Loganiaceae of Africa XIV. A revision of Nuxia Lam. Mededelingen Landbouwhogeschool te Wageningen 75-8: 1-80.

    Literature

    Flora of West Tropical Africa
    • —F.T.A. 4, 1: 511.
    Flora Zambesiaca
    • Leeuwenberg in Meded. Landb. Wag. 75–8: 1 (1975).
    • Tab. Encycl. Méth. Bot. 1: 295 (1792).
    Flora of Tropical East Africa
    • Illustr. 1: 295, t. 71 (1791)

    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 2018. 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 2018. 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