Salicaceae

Oncoba Forssk.

First published in Fl. Aegypt.-Arab.: 103 (1775)
This genus is accepted
The native range of this genus is Tropical & S. Africa, Araian Peninsula.

Descriptions

Flacourtiaceae, H. Sleumer (Rijksherbarium, Leiden). Flora of Tropical East Africa. 1975

Morphology General Habit
Shrubs or small trees; stem and branches often spiny
Morphology Leaves
Leaves deciduous, alternate, crenate-serrate, penninerved; petiole not thickened apically; stipules caducous
Morphology Reproductive morphology Flowers
Flowers bisexual or polygamous (andromonoecious), Camellia-like, white, scented, solitary, axillary or terminal on short side shoots, pedunculate
Morphology Reproductive morphology Flowers Calyx
Sepals 3–5, ± united at the base, ± imbricate, the outer ones gradually larger than the inner ones
Morphology Reproductive morphology Flowers Corolla
Petals (5–)8–15, imbricate in bud, subequal
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens very numerous; filaments filiform, anthers linear to oblong, basifixed, longitudinally dehiscent, apiculate by the ± elongate connective
Morphology Reproductive morphology Flowers Gynoecium Pistil
Ovary (wanting in ♂ flowers) sessile, unilocular, the 6–8(–10) placentas much protruding into the cavity, multi-ovulate; style columnar; stigma either peltate, i.e. formed by short subglobular and ± connate stigmatic branches (the number of the placentas), or radiate, i.e. the short stigmatic branches free, each with a capitate stigma
Morphology Reproductive morphology Fruits
Fruit globular, indehiscent, 1-locular, many-seeded, smooth or with slight longitudinal ridges, the pericarp woody
Morphology Reproductive morphology Seeds
Seeds embedded in an edible pulp, with a smooth bony testa.
[FTEA]

M. Thulin et al. Flora of Somalia, Vol. 1-4 [updated 2008] https://plants.jstor.org/collection/FLOS

Morphology General Habit
Shrubs or trees, stems and branches often spiny
Morphology Leaves
Leaves crenate-serrate
Morphology Reproductive morphology Flowers
Flowers bisexual or male, solitary
Morphology Reproductive morphology Flowers Calyx
Sepals 3–5, + imbricate
Morphology Reproductive morphology Flowers Corolla
Petals (5–)8–15, white, imbricate, longer than the sepals, soon falling off
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens numerous; filaments filiform; anthers linear to oblong
Morphology Reproductive morphology Flowers Gynoecium Ovary
Ovary smooth, with 6–8(–10) placentas; style thick, apically broadened
Morphology Reproductive morphology Fruits
Fruit woody, smooth, globular, indehiscent
Morphology Reproductive morphology Seeds
Seeds embedded in pulp, with a smooth testa.
Distribution
Genus of four species in Africa, one extending to Arabia.
[FSOM]

Flacourtiaceae, H. Wild. Flora Zambesiaca 1:1. 1960

Morphology General Habit
Trees or shrubs; branches often spinose.
Morphology Leaves
Leaves alternate, petiolate.
Morphology Reproductive morphology Flowers
Flowers terminal or axillary, solitary, often on short side-shoots, often large and showy.
Morphology Reproductive morphology Flowers Calyx
Sepals 3 or 4, free or united at the base, imbricate.
Morphology Reproductive morphology Flowers Corolla
Petals 5–10 or more, exceeding the sepals, imbricate.
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens numerous, free, anthers linear.
Morphology Reproductive morphology Flowers Gynoecium Pistil
Ovary 1-locular with 2–10 multiovulate parietal placentas; style simple.
Morphology Reproductive morphology Fruits
Fruit indehiscent, smooth or slightly ridged with a hard, shell-like pericarp, 1-locular, many seeded.
Morphology Reproductive morphology Seeds
Seeds with a smooth, horny testa; embryo with leafy cotyledons.
[FZ]

Sources

  • Flora Zambesiaca

    • Flora Zambesiaca
    • http://creativecommons.org/licenses/by-nc-sa/3.0

  • Flora of Somalia

    • Flora of Somalia
    • 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

  • Herbarium Catalogue Specimens

    • 'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet http://www.kew.org/herbcat [accessed on Day Month Year]'. Please enter the date on which you consulted the system.

  • Kew Backbone Distributions

    • The International Plant Names Index and World Checklist of Vascular Plants 2025. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0

  • Kew Names and Taxonomic Backbone

    • The International Plant Names Index and World Checklist of Vascular Plants 2025. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 International Plant Names Index and World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0