Connaraceae
Vismianthus

Vismianthus punctatus Mildbr.

First published in Notizbl. Bot. Gart. Berlin-Dahlem 12: 706 (1935)
This species is accepted
The native range of this species is SE. Tanzania. It is a shrub or tree and grows primarily in the wet tropical biome.

Descriptions

IUCN Red List of Threatened Species https://www.iucnredlist.org/species/158219/767050

Conservation
VU - vulnerable
[IUCN]

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]

Connaraceae, J. H. Hemsley. Flora of Tropical East Africa. 1956

Morphology General Habit
Much branched shrub to 5 m. high, young branches pubescent, later becoming glabrous with pale brown smooth bark and inconspicuous transverse ringing.
Morphology Leaves
Petiole slender, about half length of leaf blade, puberulous; lamina broadly ovate, to 8 cm. long, 5 cm. wide, apex long and narrowly acuminate, base slightly cordate, chartaceous; upper surface sparsely puberulous when young, later glabrescent; lower surface with scattered bifurcate hairs, denser on midrib and main lateral nerves, thickly beset with small dark glandular dots; lateral nerves 4–6, arcuate, ascending.
Morphology Reproductive morphology Inflorescences
Inflorescence raceme-like, with about 5 flowers; rhachis 1.5–5 cm. long, puberulous.
Morphology Reproductive morphology Flowers Calyx
Sepals green with dark red glandular dots and streaks, narrowly elliptic and deeply concave, to 3.5 mm. long, 1.5 mm. wide, ± glabrous.
Morphology Reproductive morphology Flowers Corolla
Petals white with lines of dark red glandular dots and streaks, obovate to elliptic-oblong, to 5 mm. long, 2.3 mm. wide, glabrous.
Morphology Reproductive morphology Flowers Androecium Stamens
Five episepalous stamens to 3.5 mm. long, 5 epipetalous to 2.5 mm. long.
Morphology Reproductive morphology Flowers Gynoecium Pistil
Ovary ovoid, to 1 mm. long, densely covered with long pale brown hairs, style ± 2 mm. long.
Morphology Reproductive morphology Fruits
Fruit (not fully mature) to 1.7 cm. long, 8 mm. diam., apex narrowed to a slender rostrum; dehiscence probably by ventral suture; outer layer of pericarp thin and brittle when dry, puberulous when young, later glabrescent, with prominent raised nerves and scattered dark raised gland-dots.
Morphology Reproductive morphology Seeds
Seed solitary, with thickened attachment to ventral placenta.
Figures
Fig. 3.
Habitat
Coastal evergreen bushland and secondary forest on margins of native cultivation, 800 m.
Distribution
not known elsewhere T8
[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/

  • IUCN Categories

    • IUCN Red List of Threatened Species
    • http://creativecommons.org/licenses/by-nc-sa/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