Rubiaceae
Pauridiantha

Pauridiantha symplocoides (S.Moore) Bremek.

First published in Bot. Jahrb. Syst. 71: 212 (1940)
This species is accepted
The native range of this species is Tanzania (Uluguru Mountains) to S. Tropical Africa. It is a shrub or tree and grows primarily in the seasonally dry tropical biome.

Descriptions

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

Morphology General Habit
Shrub or small tree, usually much-branched, 1.8–9 m. tall; stems glabrous or nearly so.
Morphology Leaves
Leaf-blades lanceolate, 4.5–13.3 cm. long, 0.9–2.8 cm. wide, narrowly acuminate at the apex, cuneate at the base, glabrous above save for a few short hairs on the narrowly impressed midnerve, entirely glabrous or with a few hairs on the venation beneath; lateral nerves ± 10–12 on each side, prominent beneath; petioles 2–8 mm. long, pubescent; stipules triangular-lanceolate, 1.5–5 mm. long, 0.5–2 mm. wide, pubescent.
Morphology Reproductive morphology Flowers
Flowers heterostylous, 1–3 in each axil with no or only a short common peduncle 0–2.5 mm. long; pedicels 1.5–4.5 mm. long; bracts in a whorl of 2 long and 2 short, 1.5–2.5 mm. long, pubescent.
Morphology Reproductive morphology Flowers Calyx
Calyx pubescent; tube 1.6–1.7 mm. long; limb-tube 0–0.2 mm.; lobes lanceolate-subulate 1–4.1 mm. long.
Morphology Reproductive morphology Flowers Corolla
Corolla white, yellowish white or cream, glabrous outside; tube 4–4.3 mm. long; lobes triangular-lanceolate, 2–4.9 mm. long, 1.1–2 mm. wide.
Morphology Reproductive morphology Flowers Androecium Stamens Anthers
Anthers about 3/4-exserted in short-styled flowers, just included in long-styled flowers.
Morphology Reproductive morphology Flowers Disc
Disc depressed, glabrous.
Morphology Reproductive morphology Flowers Gynoecium Pistil
Style glabrous, 5.8 mm. long in long-styled flowers, 1.5 mm. long in short-styled flowers; stigma 0.9–1.2 mm. long, the lobes quite distinct, linear.
Morphology Reproductive morphology Fruits
Berries subglobose, 3–3.7 mm. long, 4–5 mm. across, glabrous.
Morphology Reproductive morphology Seeds
Seeds typically orange-brown, ovoid, 1.2 mm. long, 0.95 mm. wide.
[FTEA]

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

Morphology General Habit
Shrub or small tree, usually much-branched, 1.8–9 m. tall; stems glabrous or nearly so.
Morphology Leaves
Leaf blades 4.5–13.3 x 0.9–2.8 cm., lanceolate, narrowly acuminate at the apex, cuneate at the base, glabrous above save for a few short hairs on the narrowly impressed midnerve, entirely glabrous or with a few hairs on the venation beneath; lateral nerves ± 10–12 on each side, prominent beneath; petioles 2–8 mm. long, pubescent; stipules 1.5–5 x 0.5–2 mm., triangular-lanceolate, pubescent.
Morphology Reproductive morphology Flowers
Flowers heterostylous, 1–3 in each axil with no or only a short common peduncle 0–2.5 mm. long; pedicels 1.5–2.5 mm. long, pubescent.
Morphology Reproductive morphology Flowers Calyx
Calyx pubescent; tube 1.6–1.7 mm. long; limb tube 0–0.2 mm.; lobes 1–4.1 mm. long, lanceolate-subulate.
Morphology Reproductive morphology Flowers Corolla
Corolla white, yellowish white or cream, glabrous outside; tube 4–4.3 mm. long; lobes 2–4.9 x 1.1–2 mm., triangular-lanceolate.
Morphology Reproductive morphology Flowers Androecium Stamens Anthers
Anthers about three-quarters exserted in short-styled flowers, just included in long-styled flowers.
Morphology Reproductive morphology Flowers Disc
Disk depressed, glabrous.
Morphology Reproductive morphology Flowers Gynoecium Pistil
Style glabrous, 5.8 mm. long in long-styled flowers, 1.5 mm. long in short-styled flowers; stigma 0.9–1.2 mm. long, the lobes quite distinct, linear.
Morphology Reproductive morphology Fruits
Berries 3–3.7 mm long, 4–5 mm. across, subglobose, glabrous.
Morphology Reproductive morphology Seeds
Seeds typically orange-brown, 1.2 x 0.95 mm. ovoid.
[FZ]

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]

Sources

  • Angiosperm Extinction Risk Predictions v1

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

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