Pauridiantha Hook.f.

First published in G.Bentham & J.D.Hooker, Gen. Pl. 2: 69 (1873)
This genus is accepted
The native range of this genus is Tropical Africa, Madagascar.

Descriptions

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

Morphology General Habit
Shrubs, small trees or subscandent woody plants
Morphology Leaves
Leaves opposite or ternate, shortly petiolate, the petioles compressed, channelled; blades acuminate or caudate, usually with acarodomatia; midnerve channelled; stipules interpetiolar, triangular or ovate, entire, acute
Morphology Reproductive morphology Flowers
Flowers hermaphrodite, mostly heterostylous, usually 5-merous, in axillary or terminal, sessile or pedunculate, trichotomously corymbose or subumbellate inflorescences, sometimes reduced to a few or even single flowers; peduncle with 1–2 4-parted involucels situated at the apex or middle; other bracts small or absent
Morphology Reproductive morphology Flowers Calyx
Calyx-tube short, denticulate, dentate or lobed
Morphology Reproductive morphology Flowers Corolla
Corolla salver-shaped, white, greenish, violet or lavender; tube short, funnel-shaped or cylindrical, the upper half densely hairy inside; lobes glabrous inside
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens with glabrous filaments and dorsifixed anthers, exserted in short-styled flowers
Morphology Reproductive morphology Flowers Disc
Disc cushion-shaped, papillate or shortly hairy
Morphology Reproductive morphology Flowers Gynoecium Pistil
Ovary 2–3-locular at the base, 4–6-locular at the apex, with 2–3, sometimes lobed, placentas affixed at the middle of the true septum, the false septa incised and broadly cordate; ovules numerous; style glabrous, puberulous or hairy, included or exserted; stigmas 2, globose, mitriform or subcapitate, the apex shortly 2-lobed, the lobes cohering or rarely free and linear or lanceolate
Morphology Reproductive morphology Fruits
Fruit a globose yellow or red berry, 2-locular at the base, 4-locular at the top
Morphology Reproductive morphology Seeds
Seeds numerous, yellow or yellow-brown, rarely red, ovoid, testa alveolate and sometimes irregularly ribbed; endosperm oily.
[FTEA]

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

Morphology General Habit
Shrubs, small trees or subscandent woody plants.
Morphology Leaves
Leaves opposite or ternate, shortly petiolate, the petioles compressed, channelled; blades acuminate or caudate, usually with acarodomatia; midnerve channelled; stipules interpetiolar, triangular or ovate, entire, acute.
Morphology Reproductive morphology Flowers
Flowers hermaphrodite, mostly heterostylous, usually 5-merous, in axillary or terminal, sessile or pedunculate, trichotomously corymbose or subumbellate inflorescences, sometimes reduced to a few or even single flowers; peduncle with 1–2 4-parted involucels situated at the apex or middle; other bracts small or absent.
Morphology Reproductive morphology Flowers Calyx
Calyx tube short, denticulate, dentate or lobed.
Morphology Reproductive morphology Flowers Corolla
Corolla salver-shaped, white, greenish, violet or lavender; tube short, funnel-shaped or cylindrical, the upper half densely hairy inside; lobes glabrous inside.
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens with glabrous filaments and dorsifixed anthers, exserted in short-styled flowers.
Morphology Reproductive morphology Flowers Disc
Disk cushion-shaped, papillate or shortly hairy.
Morphology Reproductive morphology Flowers Gynoecium Pistil
Ovary 2–3-locular at the base, 4–6-locular at the apex, with 2–3, sometimes lobed placentas affixed at the the middle of the true septum, the false septa incised and broadly cordate; ovules numerous; style glabrous, puberulous or hairy, included or exserted; stigmas 2, globose, mitriform or subcapitate, the apex shortly 2-lobed, the lobes cohering or rarely free and linear or lanceolate.
Morphology Reproductive morphology Fruits
Fruit a globose yellow or red berry, bilocular at the base, 4-locular at the top.
Morphology Reproductive morphology Seeds
Seeds numerous, yellow or yellow-brown, rarely red, ovoid; testa alveolate and sometimes irregularly ribbed; endosperm oily.
[FZ]

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

Morphology General Habit
Shrub; branchlets puberulous at first but later glabrescent
Morphology Leaves
Leaves opposite, petiolate, the petioles laterally compressed and channelled; blades acuminate, the midnerve channelled; primary and secondary nerve-axils bearing acarodomatia, venation densely reticulate; stipules ovate-triangular, recurved at the margins, densely pubescent inside and with large sparse colleters
Morphology Reproductive morphology Flowers
Flowers hermaphrodite, possibly slightly heterostylous, 5–6-merous; inflorescences axillary, usually 4, superposed in a vertical plane in a fan-like manner, confluent in a basal pulvinus, pedunculate, the peduncles involucellate about the middle, cymose or trichotomously corymbose, 7–9-flowered; bracts and bracteoles absent
Morphology Reproductive morphology Flowers Calyx
Calyx cupular, 5–6-dentate
Morphology Reproductive morphology Flowers Corolla
Corolla shortly salver-shaped; tube with throat densely hairy
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens inserted in the throat in short-styled flowers; anthers oblong, dorsifixed, basally bilobed, the connective briefly apiculate
Morphology Reproductive morphology Flowers Disc
Disc cushion-shaped, minutely white papillate, impressed at the margins by the decurrent parts of the filaments at the base of the tube, apically lobed
Morphology Reproductive morphology Flowers Gynoecium Pistil
Ovary 4–5-locular, with 4–5 axile placentas apically cut by a false septum which is broadly cordate; ovules numerous; style absent; stigma-lobes 4 or 5, terete, erect, short
Morphology Reproductive morphology Fruits
Fruit not seen.
[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
  • 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 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