Annonaceae

Uvariodendron (Engl. & Diels) R.E.Fr.

First published in Acta Horti Berg. 10: 51 (1930)
This genus is accepted
The native range of this genus is W., W. Central & E. Tropical Africa.

Descriptions

Annonaceae, N. K. B. Robson. Flora Zambesiaca 1:1. 1960

Morphology General Habit
Shrubs or trees, not climbing, with simple hairs.
Morphology General Buds
Buds depressed-globose.
Morphology Reproductive morphology Flowers
Flowers bisexual, solitary or paired, axillary, sometimes on the old wood.
Morphology Reproductive morphology Inflorescences Bracteoles
Bracteoles 2–6, usually biseriate, forming an involucre in sessile flowers.
Morphology Reproductive morphology Flowers Calyx
Sepals 3, valvate, free or united at the base, not enclosing the petals in bud, with plane margins, densely brown- or golden-sericeous outside, glabrous within.
Morphology Reproductive morphology Flowers Corolla
Petals 6, in two whorls, the outer valvate, the inner valvate above and open below, expanding and spreading at anthesis or the inner whorl remaining connivent at the apex, free, subequal, thick.
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens very numerous, linear, with thecae lateral or extrorse and connective-prolongations capitate.
Morphology Reproductive morphology Flowers Gynoecium Carpels
Carpels ?, cylindric, with numerous ovules in two rows; style very short; stigma truncate, horse-shoe-shaped.
Morphology Reproductive morphology Fruits
Ripe carpels indehiscent, ovoid or ellipsoid to cylindric, straight, subsessile, many-seeded.
Morphology Reproductive morphology Seeds
Seeds ± horizontal; aril absent.
[FZ]

Annonaceae, B. Verdcourt. Flora of Tropical East Africa. 1971

Morphology General Habit
Shrubs or trees with an indumentum of simple hairs
Morphology Reproductive morphology Flowers
Flowers hermaphrodite, solitary or fascicled, axillary on leafy shoots and/or also on the old wood, sessile or stalked; bracteoles 2–6, often forming an involucre in the case of sessile flowers
Morphology Reproductive morphology Flowers Calyx
Sepals 3, valvate, free or united at the base, in most species not enclosing the petals in bud
Morphology Reproductive morphology Flowers Corolla
Petals 6, in 2 whorls of 3, the outer valvate, and at length spreading, the inner valvate or somewhat imbricate above, open below, often remaining connivent at apex long after flowers have opened, free, mostly very thick and fleshy, often brittle, subequal
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens very numerous, linear; anther-cells lateral or extrorse; connective-prolongations capitate
Morphology Reproductive morphology Flowers Gynoecium Carpels
Carpels numerous, cylindric, with numerous mostly biseriate ovules or in one species practically in 1 row; style very short or more developed, consisting of a plicate or involute lamina, the apical margin being the stigmatic surface
Morphology Reproductive morphology Fruits
Monocarps indehiscent, ovoid, ellipsoid or broadly to narrowly cylindric, straight, subsessile or shortly stipitate, many-seeded, often constricted between the seeds
Morphology Reproductive morphology Seeds
Seeds ± horizontal, ellipsoid.
[FTEA]

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

  • 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