Orchidaceae
Holothrix

Holothrix nyasae Rolfe

First published in D.Oliver & auct. suc. (eds.), Fl. Trop. Afr. 7: 193 (1898)
This species is accepted
The native range of this species is SW. Tanzania. It is a tuberous geophyte 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]

Orchidaceae, V. S. Summerhayes. Flora of Tropical East Africa. 1968

Morphology General Habit
Perennial herb up to 4 dm. high.
Morphology Leaves
Leaves 2, elliptical to reniform, apiculate, up to 4 cm. long and 6.5 cm. broad, with long rather soft hairs especially on upper surface.
Morphology Reproductive morphology Inflorescences Scape
Scape with long spreading hairs.
Morphology Reproductive morphology Inflorescences Bracts
Bracts lanceolate, acuminate, equalling or longer than the shortly stalked ovary, densely long-hairy.
Morphology Reproductive morphology Flowers
Flowers white or yellowish.
Morphology Reproductive morphology Flowers Calyx
Sepals ovate, apiculate, the laterals very oblique, 3–4.2 mm. long, densely hairy.
Morphology Reproductive morphology Flowers Corolla
Petals narrowly wedge-shaped, 5–7 mm. long, 3-lobed in the upper third, long-ciliate especially on the lobes.
Morphology Reproductive morphology Flowers Labellum
Lip ± fan-shaped, 7–13-lobed in the upper third or quarter, 5–9 mm. long, 4.5–7.5 mm. broad, long-ciliate especially on the lobes.
Morphology Reproductive morphology Flowers Spur
Spur conical, slightly incurved, 2–2.5 mm. long.
Morphology Reproductive morphology Flowers Gynoecium Ovary
Ovary densely hairy.
Habitat
Short upland grassland and among rocks; 2000–2700 m.
Distribution
T7 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

    • '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