Craterosiphon Engl. & Gilg

First published in Bot. Jahrb. Syst. 19: 27 (1894)
This genus is accepted
The native range of this genus is Tropical Africa.

Descriptions

Thymelaeaceae, B. Peterson (University of Göteborg). Flora of Tropical East Africa. 1978

Morphology General Habit
Lianes, climbing shrubs or small trees with twining branches; twigs with conspicuous lenticels, glabrous
Morphology Leaves
Leaves opposite, subopposite or rarely alternate, petiolate; blade elliptical to ovate, acuminate, chartaceous to coriaceous; lateral nerves spreading almost at right angles
Morphology Reproductive morphology Inflorescences
Inflorescence axillary
Morphology Reproductive morphology Flowers
Flowers 5-merous, subsessile or pedicelled, solitary or 2–4, with small, sometimes ciliate, bracts
Morphology Reproductive morphology Flowers Calyx
Calyx-tube funnel-shaped, glabrous outside, glabrous or hairy inside, somewhat fleshy, persistent; lobes 5, equal to the tube or much shorter
Morphology Reproductive morphology Flowers Corolla
Petals absent or 10 minute glands inserted on the throat of the tube
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 10 in two whorls, inserted in the throat of the tube
Morphology Reproductive morphology Flowers Gynoecium Pistil
Ovary sessile or subsessile, 1-locular, glabrous or slightly pubescent or pilose at the top; disc cup-shaped or lobed, membranous; style terminal or sublateral; stigma capitate, finely papillose
Morphology Reproductive morphology Fruits
Fruit a drupe with sclerified pericarp, included in the persistent calyx-tube Grain oblong, fusiform.
[FTEA]

Flora Zambesiaca. Vol. 9, Part 3. Polygonaceae-Myriaceae. Pope GV, Polhill RM, Martins ES. 2006.

Morphology General Habit
Lianes, climbing shrubs or small trees with twining branches; twigs with conspicuous lenticels, glabrous Lianes, climbing shrubs or small trees with twining branches; twigs with conspicuous lenticels, glabrous.
Morphology Leaves
Leaves opposite, subopposite or rarely alternate, petiolate; blade elliptic to ovate, acuminate, chartaceous to coriaceous; lateral nerves spreading almost at right angles Leaves opposite, subopposite or rarely alternate, petiolate; blade elliptic to ovate, acuminate, chartaceous to coriaceous; lateral nerves spreading almost at right angles.
Morphology Reproductive morphology Inflorescences
Inflorescences axillary Inflorescences axillary.
Morphology Reproductive morphology Flowers Corolla
Petals absent or 10 minute glands inserted at the throat of the tube Petals absent or 10 minute glands inserted at the throat of the tube.
Morphology Reproductive morphology Flowers Gynoecium Ovary
Ovary sessile or subsessile, 1-locular, glabrous or slightly pubescent or pilose at the top; disk cup-shaped or lobed, membranous; style terminal or sublateral; stigma capitate or subcapitate, finely papillose, sometimes exserted
Distribution
About 9 species, all tropical African, mainly in the rain forest regions of central and west Africa.
Morphology Reproductive morphology Flowers
Flowers 5-merous, subsessile or shortly pedicellate, solitary or 2–4, with small, sometimes ciliate, bracts. Flowers 5-merous, subsessile or shortly pedicellate, solitary or 2–4, with small, sometimes ciliate, bracts
Morphology Reproductive morphology Flowers Calyx
Calyx tube funnel-shaped, glabrous outside, glabrous or hairy inside, somewhat fleshy, not articulated, persistent; lobes 5, equal to the tube or much shorter. Calyx tube funnel-shaped, glabrous outside, glabrous or hairy inside, somewhat fleshy, not articulated, persistent; lobes 5, equal to the tube or much shorter
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 10 in 2 whorls, or practically in 1 series, attached at the middle of the tube and included or attached in the throat of the tube and exserted; filaments of those opposite the sepals usually longer. Stamens 10 in 2 whorls, or practically in 1 series, attached at the middle of the tube and included or attached in the throat of the tube and exserted; filaments of those opposite the sepals usually longer
Morphology Reproductive morphology Flowers Gynoecium Pistil
Ovary sessile or subsessile, 1-locular, glabrous or slightly pubescent or pilose at the top; disk cup-shaped or lobed, membranous; style terminal or sublateral; stigma capitate or subcapitate, finely papillose, sometimes exserted.
Morphology Reproductive morphology Fruits
Fruit a drupe with a sclerified pericarp, included in the persistent calyx tube. Fruit a drupe with a sclerified pericarp, included in the persistent calyx tube
Morphology Reproductive morphology Seeds
Seed oblong, fusiform. Seed oblong, fusiform.
[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
  • Kew Backbone Distributions

    • The International Plant Names Index and World Checklist of Vascular Plants 2022. 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 2022. 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