Allanblackia Oliv.

First published in J. Linn. Soc., Bot. 10: 42 (1867)
This genus is accepted
The native range of this genus is Tropical Africa.

Descriptions

Guttiferae, P. Bamps, N. Robson & B. Verdcourt. Flora of Tropical East Africa. 1978

Morphology General Habit
Trees with hollow longitudinally wrinkled branches
Morphology Leaves
Leaves opposite, with secretory canals visible on the lower face
Morphology Reproductive morphology Flowers
Flowers unisexual, in terminal racemes or panicles with secondary axes very reduced and sometimes accompanied by solitary or paired flowers in the axils of the upper leaves, or sometimes pseudo-axillary on short lateral branches Male flowers: stamens numerous, grouped in 5 very fleshy bundles opposite the petals; anthers subsessile in several rows on the inner face or on both faces of the bundle, longitudinally dehiscent; disc in the form of a star, with 5 ± clavate branches ending in 5 smooth glands, grooved superficially or pleated-laminated, alternating with the staminal bundles; ovary absent Female flowers: 5 rudimentary staminal bundles alternating with 5 free disc glands; ovary conical, with 5 incompletely separated locules and parietal placentas; ovules 2–28 per locule, arranged in 2 rows; stigma peltate, sessile or subsessile
Morphology Reproductive morphology Flowers Calyx
Sepals 5, imbricate, unequal
Morphology Reproductive morphology Flowers Corolla
Petals 5, imbricate
sex Male
Male flowers: stamens numerous, grouped in 5 very fleshy bundles opposite the petals; anthers subsessile in several rows on the inner face or on both faces of the bundle, longitudinally dehiscent; disc in the form of a star, with 5 ± clavate branches ending in 5 smooth glands, grooved superficially or pleated-laminated, alternating with the staminal bundles; ovary absent
sex Female
Female flowers: 5 rudimentary staminal bundles alternating with 5 free disc glands; ovary conical, with 5 incompletely separated locules and parietal placentas; ovules 2–28 per locule, arranged in 2 rows; stigma peltate, sessile or subsessile
Morphology Reproductive morphology Fruits
Fruit a berry, often very large
Morphology Reproductive morphology Seeds
Seeds arillate.
[FTEA]

Sources

  • 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 2023. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2022 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 2023. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2022 International Plant Names Index and World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0