Orchidaceae
Polystachya

Polystachya ottoniana Rchb.f.

First published in Hamburger Garten- Blumenzeitung 11: 249 (1855)
This species is accepted
The native range of this species is S. Tropical & S. Africa. It is a pseudobulbous epiphyte and grows primarily in the seasonally dry tropical biome.

Descriptions

Orchidaceae, I. la Croix & P.J. Cribb. Flora Zambesiaca 11:2. 1998

Morphology General Habit
Small epiphytic or lithophytic herb, forming chains of pseudobulbs.
Vegetative Multiplication Pseudobulbs
Pseudobulbs 1.5–2.5 × 1–2 cm, ovoid, asymmetrical, 2–3-leaved.
Morphology Leaves
Leaves 7–10 × 0.5–1 cm, linear or narrowly ligulate.
Morphology Reproductive morphology Inflorescences
Inflorescence (floral axis) 4–5 cm long, laxly few-flowered.
Morphology Reproductive morphology Flowers
Flowers usually white but sometimes pink or yellowish, the lip with a broad yellow central line.
Morphology Reproductive morphology Flowers Calyx
Dorsal sepal 9–11 × 2–3 mm, ovate; lateral sepals 10–14 × 5–7 mm, obliquely ovate.
Morphology Reproductive morphology Flowers Corolla
Petals 10 × 2 mm, oblanceolate.
Morphology Reproductive morphology Flowers Labellum
Lip 9–12 × 6–7 mm, pubescent with clavate hairs inside, rather obscurely 3-lobed at about halfway; mid-lobe recurved, the edge undulate.
Morphology Reproductive morphology Flowers Column
Column slender, 4–5 mm long.
[FZ]

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: confident
[AERP]

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

    • '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.

  • 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