Rytigynia stolzii Robyns

First published in Bull. Jard. Bot. État Bruxelles 11: 224 (1928)
This species is accepted
The native range of this species is SW. Tanzania. It is a shrub 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: threatened. Confidence: confident
[AERP]

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

Morphology General Habit
Shrub 2–3.6 m. tall, usually much branched, sometimes ± scandent; stems with very dark purplish brown ± minutely flaking bark, glabrous.
Morphology Leaves
Leaf-blades oblong to oblong-elliptic or lanceolate, 3–11 cm. long, 1.2–6 cm. wide, acuminate, rounded at the base, thin, ± glabrous or with a few very scattered seta-like hairs and pubescent domatia beneath; petiole 3.5–5 mm. long; stipules triangular, 3 mm. long, connate at the base, persistent, densely villous inside; appendage broadly subulate, ± fleshy, 4–8 mm. long, soon deciduous or sometimes completely lacking.
Morphology Reproductive morphology Inflorescences
Inflorescence 9–14-flowered; peduncle 2–4 mm. long; pedicels 2–4.5 mm. long; bracts 1.5 mm. long, connate into an involucre.
Morphology General Buds
Buds shortly acuminate, glabrous.
Morphology Reproductive morphology Flowers Calyx
Calyx-tube 1.5–2 mm. long; limb ± 0.2 mm. long, truncate.
Morphology Reproductive morphology Flowers Corolla
Corolla greenish yellow; tube 2.5–3 mm. long, with a ring of deflexed hairs inside; lobes 3–3.5 mm. long, 1.5–1.8 mm. wide, not or very shortly appendaged.
Morphology Reproductive morphology Flowers Gynoecium Ovary
Ovary 2-locular.
Morphology Reproductive morphology Fruits
Fruit black, bilobed in dry state, 8 mm. long, 7.5 mm. wide, with 2 pyrenes.
Habitat
Evergreen thicket on termite mounds, Brachystegia woodland, edge of Allophylns, Osyris, Carissa, Combretum thicket, edge riverine or dry evergreen forest; 1380–1950 m.
Distribution
not known elsewhere T7
[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