Rubiaceae
Chassalia

Chassalia zimmermannii Verdc.

First published in Kew Bull. 30: 275 (1975)
This species is accepted
The native range of this species is 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 of unknown habit, probably only a few m. tall but possibly slightly scandent; older stems pale greyish, younger blackish, all glabrous.
Morphology Leaves
Leaf-blades elliptic to oblanceolate, 3–17 cm. long, 1.2–5 cm. wide, shortly distinctly acuminate at the apex, cuneate at the base, glabrous, discolorous; petiole short, 0.2–2.5(–4) cm. long, scarcely separable from the decurrent leaf-base; stipules transverse with single central apiculum, 1.5–2 mm. long.
Morphology Reproductive morphology Flowers
Flowers in rather few-flowered subsessile or shortly pedunculate subcapitate inflorescences; peduncles and secondary peduncles up to 5 mm. long; pedicels obsolete; bracts linear, 1.2–1.3 cm. long.
Morphology Reproductive morphology Flowers Calyx
Calyx glabrous; tube ovoid-oblong, 1 mm. long; lobes linear, (1.5–)3–5 mm. long, 0.5–0.8 mm. wide, narrowed at the base.
Morphology General Buds
Buds conspicuously winged.
Morphology Reproductive morphology Flowers Corolla
Corolla white shaded with purple and yellow; tube 1–1.2 cm. long; lobes triangular, 2.5 mm. long, 1.5 mm. wide, winged outside.
Morphology Reproductive morphology Flowers Androecium Stamens Anthers
Anthers just completely exserted in short-styled flowers.
Morphology Reproductive morphology Flowers Gynoecium Pistil
Style 5.5 mm. long and stigma-lobes 2.5 mm. long in short-styled flowers.
Morphology Reproductive morphology Fruits
Fruits white, globose, 5 mm. in diameter, ribbed, mostly crowned with the persistent calyx-lobes; pyrenes pale, 1/2-ovoid, 5 mm. long, 3.6 mm. wide, 3 mm. thick, with very strong dorsal keel.
Morphology Reproductive morphology Seeds
Seeds strongly concavo-convex.
Figures
Fig. 10.
Habitat
Evergreen forest; 250–450(–800) m.
Distribution
T3 not known elsewhere
[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

    • 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 2026. 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 2026. 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