Rubiaceae
Pauridiantha

Pauridiantha viridiflora (Schweinf. ex Hiern) Hepper

First published in Kew Bull. 13: 405 (1958 publ. 1959)
This species is accepted
The native range of this species is SE. Nigeria to NW. Tanzania and NW. Angola. It is a shrub or tree and grows primarily in the seasonally dry tropical biome.

Descriptions

Extinction risk predictions for the world's flowering plants to support their conservation (2024). Bachman, S.P., Brown, M.J.M., Leão, T.C.C., Lughadha, E.N., Walker, B.E. https://nph.onlinelibrary.wiley.com/doi/full/10.1111/nph.19592

Conservation
Predicted extinction risk: not threatened. Confidence: confident
[AERP]

Rubiaceae, F. N. Hepper & R. W. J. Keay. Flora of West Tropical Africa 2. 1963

Morphology General Habit
Shrub or small tree 10-20 ft. high
Morphology Leaves
Yellow-green leaves
Morphology Reproductive morphology Flowers
Flowers greenish or grey
Ecology
At edges of forest.
[FWTA]

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

Morphology General Habit
Shrub or small tree 3–7.5(–12) m. tall; young stems densely finely yellowish pubescent, becoming glabrescent.
Morphology Leaves
Leaves yellow-green (as in aluminium-accumulating plants); blades deeply furrowed, elliptic-oblong, (7–)9.6–15.5(–23.5) cm. long, 2–5.6(–8.4) cm. wide, acuminate at the apex, cuneate at the base, pubescent on main nerves particularly beneath or almost glabrous on both surfaces; lateral nerves 16–20 on each side; petiole 0.5–1.5 cm. long; stipules ovate-triangular or ovate, 0.5–1.8 cm. long, 0.3–1.2 cm. wide, acute to acuminate at the apex, adpressed pubescent, eventually deciduous.
Morphology Reproductive morphology Flowers
Flowers in extensive terminal and axillary inflorescences (the axillary ones actually often branches bearing one pair of leaves), 8–25 cm. long and wide; peduncles 3–8.5 cm. long; secondary peduncles 2–4 cm. long; pedicels 0.5–5 mm. long; whorls of bracts absent, but sometimes a few scattered lanceolate bracts ± 5 mm. long; all parts of inflorescence densely adpressed yellowish tomentose-pubescent.
Morphology Reproductive morphology Flowers Calyx
Calyx campanulate, pubescent, the tube 0.5–1 mm. long, the limb-tube 0.6–1 mm. long, the shallow teeth up to ± 0.3 mm. long.
Morphology Reproductive morphology Flowers Corolla
Corolla pubescent outside, green or greenish white; tube 1.4–2.7 mm. long; lobes triangular, 0.9–2.1 mm. long, 0.6–1.4 mm. wide.
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens almost as long as the corolla-lobes in short-styled flowers, almost completely included in long-styled flowers.
Morphology Reproductive morphology Flowers Disc
Disc apically pubescent.
Morphology Reproductive morphology Flowers Gynoecium Pistil
Style hairy, 2–2.8 mm. long in long-styled flowers, 0.8–0.9 mm. long in short-styled flowers; stigma 0.5–1.1 mm. long.
Morphology Reproductive morphology Fruits
Berries greenish, subglobose, 5–7 mm. in diameter, crowned by the cupular calyx-limb.
Morphology Reproductive morphology Seeds
Seeds brownish red, ellipsoid, ± 1 mm. long, strongly wrinkled and pitted.
Habitat
Understory of evergreen forest, forest edges and secondary scrub; 1140–1400 m.
Distribution
T1 U4
[FTEA]

IUCN Red List of Threatened Species https://www.iucnredlist.org/species/156103545/156103547

Conservation
LC - least concern
[IUCN]

Sources

  • Angiosperm Extinction Risk Predictions v1

    • Angiosperm Threat Predictions
    • http://creativecommons.org/licenses/by/4.0

  • Flora of Tropical East Africa

    • Flora of Tropical East Africa
    • http://creativecommons.org/licenses/by-nc-sa/3.0

  • Flora of West Tropical Africa

    • Flora of West Tropical 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.
    • Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/

  • IUCN Categories

    • IUCN Red List of Threatened Species
    • 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