Orchidaceae
Polystachya

Polystachya calluniflora Kraenzl.

First published in Bot. Jahrb. Syst. 28: 166 (1900)
This species is accepted
The native range of this species is Ivory Coast (Mt. Mafa), Nigeria to Uganda. It is a pseudobulbous epiphyte and grows primarily in the wet 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: confident
[AERP]

Orchidaceae, V. S. Summerhayes. Flora of West Tropical Africa 3:1. 1968

Morphology Reproductive morphology Flowers
Flowers white and pink.
[FWTA]

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

Morphology General Habit
An erect, suberect or arching epiphytic herb.
Vegetative Multiplication Pseudobulbs
Pseudobulbs superposed, new shoots given off just below centre of previous year’s pseudobulb, fusiform, 5 cm. long, 4 mm. in diameter, 2-leaved, covered when young by 2–3 scarious sheaths.
Morphology Leaves
Leaves linear, grass- like, 4.5–17 cm. long, 5–6 mm. wide, acute.
Morphology Reproductive morphology Inflorescences
Inflorescence erect, cylindrical, 4–10 cm. long, racemose, subtended at base by 1–2 long compressed acuminate sheaths, the upper sheath more or less overlapping the basal flowers; bracts setaceous, 1–4 mm. long.
Morphology Reproductive morphology Flowers
Flowers white or pink.
Morphology Reproductive morphology Flowers Calyx
Dorsal sepal ovate, 2.5 mm. long, 1.6 mm. wide, shortly acuminate; lateral sepals slightly obliquely ovate or oblong-ovate, acute, 3 mm. long, 1.7 mm. wide; mentum obscurely rounded.
Morphology Reproductive morphology Flowers Corolla
Petals elliptic, subacute, 2.5 mm. long, 1.5 mm. wide.
Morphology Reproductive morphology Flowers Labellum
Lip 3-lobed just above base, shortly clawed, hastate, 3.5 mm. long, 1.7 mm. wide; side lobes small, triangular or obliquely triangular; mid-lobe lanceolate, acute, 3.2 mm. long, 1.3 mm. wide; callus on base of mid-lobe of 2 curved, fleshy raised ridges.
Morphology Reproductive morphology Flowers Column
Column very short, truncate.
Habitat
Epiphyte in upland forest; 2200 m.
Distribution
U2
[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

  • Flora of West Tropical Africa

    • Flora of West Tropical 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 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