Hannoa Planch.

First published in London J. Bot. 5: 566 (1846)
This genus is accepted
The native range of this genus is Nigeria to South Sudan.

Descriptions

Simaroubaceae, H. Wild & J. B. Phipps. Flora Zambesiaca 2:1. 1963

Morphology General Habit
Trees, shrubs or shrublets.
Morphology Leaves
Leaves not crowded at the ends of the branches, imparipinnate; leaflets opposite or alternate, sometimes with scattered thickenings or depressions.
Morphology Reproductive morphology Inflorescences
Inflorescences axillary or terminal, paniculate.
Morphology Reproductive morphology Flowers
Flowers unisexual or bisexual.
Morphology Reproductive morphology Flowers Calyx
Calyx irregularly and sometimes shallowly 2–4-lobed.
Morphology Reproductive morphology Flowers Corolla
Petals 5 (6–9), imbricate.
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 10 (12–14), the 5 opposite the petals somewhat shorter; filaments with a hairy appendage at the base.
Morphology Reproductive morphology Flowers Disc
Disk thick and fleshy, ± 10-ribbed or -lobed.
Morphology Reproductive morphology Flowers Gynoecium Ovary
Vestigial ovary in male flowers sunk in the disk, of 5 free carpels with very short connate styles and 5 stigmas. Ovary in bisexual flowers similar but much larger.
Morphology Reproductive morphology Flowers Gynoecium Carpels
Carpels 1-ovulate.
Morphology Reproductive morphology Fruits
Fruit of 1–3 drupaceous mericarps.
[FZ]

Sources

  • Flora Zambesiaca

    • Flora Zambesiaca
    • 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 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