Olacaceae

Strombosia Blume

First published in Bijdr. Fl. Ned. Ind.: 1154 (1827)
This genus is accepted
The native range of this genus is Tropical Africa, Tropical Asia.

Descriptions

Olacaceae, G. Ll. Lucas. Flora of Tropical East Africa. 1968

Morphology General Habit
Trees
Morphology Leaves
Leaves petiolate, alternate, entire, subcoriaceous to coriaceous, glabrous; veins very prominent beneath, ± impressed above, tertiary veins characteristically parallel to one another (as also in Strombosiopsis)
Morphology Reproductive morphology Inflorescences
Inflorescence axillary, with the flowers fasciculate on a very short lateral shoot, padlike
Morphology Reproductive morphology Flowers
Flowers bisexual, pedicellate
Morphology Reproductive morphology Flowers Calyx
Calyx small, tubular, 5-lobed, accrescent, adnate to the ovary
Morphology Reproductive morphology Flowers Corolla
Petals 5, valvate, with a fine indumentum on the inner surface usually confined to the upper half
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 5, epipetalous; filaments free for only a short distance; anthers dorsifixed
Morphology Reproductive morphology Flowers Gynoecium Pistil
Ovary semi-inferior to inferior, 3–5-locular, borne on a disk or partially immersed in it, scarcely lobed; ovules 1 per locule, pendulous from a central placenta; style short; stigma 3–5-lobed
Morphology Reproductive morphology Fruits
Fruit a drupe, bearing the remains of the calyx at the apex.
[FTEA]

Olacaceae, J. G. Garcia. Flora Zambesiaca 2:1. 1963

Morphology General Habit
Trees.
Morphology Leaves
Leaves glabrous.
Morphology Reproductive morphology Flowers
Flowers bisexual, fasciculate on very short lateral shoots.
Morphology Reproductive morphology Flowers Calyx
Calyx-tube adnate to the ovary; limb small, with 5 broadly ovate lobes.
Morphology Reproductive morphology Flowers Corolla
Petals 5, perigynous, valvate, connivent or patent-erect.
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 5, opposite the petals; filaments adnate to the petals; anthers dorsifixed.
Morphology Reproductive morphology Flowers Gynoecium Pistil
Ovary semi-inferior, 3–5-locular at the base, covered by the disk; ovules 3–5 (6), pendulous in the middle of the loculi from the top of a central placenta; style short; stigma obtuse.
Morphology Reproductive morphology Fruits
Fruit drupaceous, crowned by the vestiges of the calyx-limb; endocarp crustaceous.
Morphology Reproductive morphology Seeds
Seed pendulous, with a minute apical embryo, surrounded by fleshy endosperm.
[FZ]

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

  • Kew Backbone Distributions

    • The International Plant Names Index and World Checklist of Vascular Plants 2024. 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 2024. 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