Rubiaceae
Rutidea

Rutidea dupuisii De Wild.

First published in Ann. Mus. Congo Belge, Bot., sér. 5, 2: 174 (1907)
This species is accepted
The native range of this species is W. Tropical Africa to Tanzania. It is a climbing shrub and grows primarily in the wet 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, B. Verdcourt. Flora of Tropical East Africa. 1976

Morphology General Habit
Scandent shrub or climber 1–4 m. tall; young branches covered with rust-coloured spreading hairs; older branches with thin flaking bark.
Morphology Leaves
Leaf-blades elliptic, broadly elliptic or oblong-elliptic, 6–18 cm. long, 2.3–3.6 cm. wide, acuminate and sometimes mucronulate at apex, obtuse to rounded, often unequal or sometimes cordate at base, glabrous, glabrescent or sparsely pubescent above, glabrescent to sparsely pubescent with denser spreading hairs on the nerves beneath, shiny with surface forming fine ridges resembling fingerprints on both faces; domatia usually absent or if present then hairy tufts, inconspicuous; petiole 0.7–2.7 cm. long, densely covered with spreading hairs; stipules triangular at base, subulate above, 0.8–1.6 cm. long, covered with spreading hairs outside.
Morphology Reproductive morphology Flowers
Flowers 5-merous, sessile, in terminal pyramidal panicles; 2–4 pairs of main lateral inflorescence-branches covered with spreading hairs; bracteoles linear, up to 1.2 cm. long, exceeding and obscuring the calyx, covered with spreading hairs.
Morphology Reproductive morphology Flowers Calyx
Calyx ± covered with spreading hairs; tube 0.75–1 mm. long; limb-tube 0.25–1.25 mm. long; lobes ovate, 1–1.5(–2) mm. long.
Morphology Reproductive morphology Flowers Corolla
Corolla-tube funnel-shaped, 7–10 mm. long, ± 2 mm. wide at top, glabrous or sparsely pubescent outside; lobes ovate, 3–3.75 mm. long, 1.25–2 mm. wide, acuminate at apex.
Morphology Reproductive morphology Flowers Gynoecium Pistil
Style with a dense patch of pubescence just above base; stigma narrowly clavate to clavate, 2–3 mm. long.
Morphology Reproductive morphology Fruits
Fruit orange to red, 5–8 mm. in diameter, glabrous; calyx-limb persistent.
Morphology Reproductive morphology Seeds
Seeds reddish brown or reddish black, 4.5–5 mm. in diameter, minutely reticulate.
[FTEA]

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

    • '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