Paraknoxia Bremek.

First published in Bull. Jard. Bot. État Bruxelles 22: 77 (1952)
This genus is accepted
The native range of this genus is Central African Republic to E. & S. Tropical Africa.

Descriptions

Rubiaceae, B. Verdcourt. Flora Zambesiaca 5:1. 1989

Morphology General Habit
Annual herbs.
Morphology Leaves
Leaves paired, shortly petiolate; stipules small, with several deltoid segments from a short base.
Morphology Reproductive morphology Flowers
Flowers small, hermaphrodite, dimorphic, some flowers with anthers included and style exserted and others completely vice versa, in small sessile terminal heads.
Morphology Reproductive morphology Flowers Calyx
Calyx tube short; lobes small, 3–4, sometimes 1 enlarged and rest minute, or all minute.
Morphology Reproductive morphology Flowers Corolla
Corolla tube narrowly funnel-shaped; lobes 3–4, oblong; throat hairy.
Morphology Reproductive morphology Flowers Gynoecium Pistil
Ovary 2-locular; ovules solitary in each locule, pendulous; style filiform; stigma bifid, the lobes filiform.
Morphology Reproductive morphology Fruits
Fruit ovoid, indehiscent, but longitudinally grooved and where the fruit breaks off a little cup is left being the persistent woody flanged pedicel; between this flange and the base of the fruit are masses of rhaphides.
Morphology Reproductive morphology Seeds
Seeds narrowly ellipsoid or ovate in outline, strongly compressed.
[FZ]

Rubiaceae, B. Verdcourt. Flora of Tropical East Africa. 1976

Morphology General Habit
Annual herbs
Morphology Leaves
Leaves paired, shortly petiolate; stipules small, with several deltoid segments from a short base
Morphology Reproductive morphology Flowers
Flowers small, hermaphrodite, dimorphic, some flowers with anthers included and style exserted and others completely vice versa, in small sessile terminal heads
Morphology Reproductive morphology Flowers Calyx
Calyx-tube short; lobes small, 3–4, sometimes 1 enlarged and rest minute, or all minute
Morphology Reproductive morphology Flowers Corolla
Corolla-tube narrowly funnel-shaped; lobes 3–4, oblong; throat hairy
Morphology Reproductive morphology Flowers Gynoecium Pistil
Ovary 2-locular; ovules solitary in each locule, pendulous; style filiform; stigma bifid, the lobes filiform
Morphology Reproductive morphology Fruits
Fruit ovoid, indehiscent, but longitudinally grooved and where the fruit breaks off a little cup is left being the persistent woody flanged pedicel; between this flange and the base of the fruit are masses of rhaphides
Morphology Reproductive morphology Seeds
Seeds narrowly ellipsoid or ovate in outline, strongly compressed.
[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
  • 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