Orchidaceae
Centrostigma

Centrostigma papillosum Summerh.

First published in Kew Bull. 11: 219 (1956)
This species is accepted
The native range of this species is S. Tropical Africa. 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: not threatened. Confidence: low confidence
[AERP]

Orchidaceae, I. la Croix and P.J. Cribb. Flora Zambesiaca 11:1. 1995

Morphology General Habit
A ± slender herb 40–65 cm tall, drying dark brown or almost black; tubers ellipsoid.
Morphology Stem
Stem leafy; leaves 6–8, the two lowest sheathing, the rest semi-erect, up to c. 9 × 1.5 cm, lanceolate, acute.
Morphology Reproductive morphology Inflorescences
Inflorescence 11–20 × 3.5–4 cm, laxly 2–12-flowered; ovary and pedicel c. 35 mm long; bracts of similar length.
Morphology Reproductive morphology Flowers
Flowers green.
Morphology Reproductive morphology Flowers Calyx
Dorsal sepal erect, 10.5–12 × 4–8 mm, ovate, convex; lateral sepals sharply reflexed and curled, 10–11 × 2.5–4 mm, obliquely lanceolate.
Morphology Reproductive morphology Flowers Corolla
Petals 7–12 × 1–3 mm, lanceolate, obtuse, usually with a small lateral lobe near the base, lying inside dorsal sepal.
Morphology Reproductive morphology Flowers Labellum
Lip 3-lobed; claw 2–4 mm long; mid-lobe 10–13 × 1–2.5 mm, linear, reflexed; side lobes 10–13 × 2–3 mm, projecting forwards, the apex truncate and dentate.
Morphology Reproductive morphology Flowers Spur
Spur 20–25 mm long, tucked into bract.
Morphology Reproductive morphology Flowers Androecium Stamens Anthers
Anther 2.8–3 mm high; canals 3–4 mm long.
Morphology Reproductive morphology Flowers Gynoecium Stigma
Stigmatic arms 3–5 mm long.
[FZ]

Sources

  • Angiosperm Extinction Risk Predictions v1

    • Angiosperm Threat Predictions
    • http://creativecommons.org/licenses/by/4.0

  • Flora Zambesiaca

    • Flora Zambesiaca
    • 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 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