Psychotria lucens Hiern

First published in D.Oliver & auct. suc. (eds.), Fl. Trop. Afr. 3: 211 (1877)
This species is accepted
The native range of this species is Nigeria to Uganda. It is a subshrub or shrub and grows primarily in the wet tropical biome.

Descriptions

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

Morphology General Habit
Shrub or subshrub,? sometimes creeping, 0.3–1.5 m. tall, with glabrous stems.
Morphology Leaves
Leaf-blades elliptic, narrowly oblong-elliptic or obovate-elliptic,, (7–)12–28 cm. long, 3–12 cm. wide, acuminate at the apex, cuneate at the base, glabrous on both surfaces, drying brownish beneath, thin, with 6–16 pairs of lateral nerves; domatia and nodules absent; petioles 0.5–2.5 cm. long, glabrous; stipules ovate, 0.8–1.8 cm. long, glabrous, often bilobed at the apex, the lobes 2.5–6 mm. long, deciduous.
Morphology Reproductive morphology Flowers
Flowers heterostylous, 4-merous in several- to much-branched panicles 2–20 cm. long; peduncle 0.5–10 cm. long, glabrous; secondary branches 0.5–1.6 cm. long; pedicels 0–3 mm. long, lengthening to 5 mm. in fruit; lower bracts ovate-triangular or narrowly triangular, up to 5 mm. long, glabrous, rest minute.
Morphology Reproductive morphology Flowers Calyx
Calyx-tube obconical, 0.75–1 mm. long, glabrous; limb cupuliform, 0.5 mm. long, glabrous, truncate or the lobes very short.
Morphology Reproductive morphology Flowers Corolla
Corolla white or greenish ochre, glabrous outside; tube 1.6–2 mm. long; lobes ovate, 1.5 mm. long, 1.3 mm. wide, horned at the apex.
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens with filaments 1.5 mm. long in short-styled flowers, 0.5 mm. long or almost free in long-styled flowers.
Morphology Reproductive morphology Flowers Gynoecium Pistil
Style 1 mm. long in short-styled flowers, 2 mm. long in long-styled flowers; stigma-lobes 0.5–0.7 mm. long.
Morphology Reproductive morphology Fruits
Drupes red, of 2 pyrenes, ellipsoid, ± 9 mm. long, ± 6 mm. wide, glabrous, not grooved; pyrenes semi-ellipsoid, 8.5 mm. long, 5.5 mm. wide, 3 mm. thick, the ventral face plane, the dorsal face 3-ribbed or slightly undulate.
Morphology Reproductive morphology Seeds
Seeds slightly smaller, ventral face plane, but with a T-shaped median fissure, dorsal face 3-ribbed or slightly undulate; albumen not ruminate.
[FTEA]

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 of Tropical East Africa

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

    • 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 2024. 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 2024. 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