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This species is accepted, and its native range is SE. Kenya to NE. Tanzania.
A specimen from Kew's Herbarium

[FTEA]

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

Morphology General Habit
An erect to spreading epiphyte with a short stem 1–3.5 cm. long.
Morphology Roots
Roots smooth, 2 mm. in diameter.
Morphology Leaves
Leaves linear, unequally obtusely bilobed, 6–11 cm. long, 0.6–1.1 cm. wide, each lobe 2-toothed at apex, twisted at apex to lie in one plane, spotted with dark green on a paler green background.
Morphology Reproductive morphology Inflorescences
Inflorescences 2–5 cm. long, 2–8-flowered; bracts reflexed, ovate, 3.5–4.5 mm. long.
Morphology Reproductive morphology Flowers
Flowers green or dull green; pedicel and ovary 6–8 mm. long.
Morphology Reproductive morphology Flowers Calyx
Dorsal sepal oblong, acute, 7–7.5 mm. long, 2.5–3 mm. wide; lateral sepals obliquely oblong-lanceolate, acuminate, 8.5–9.5 mm. long, 2.5 mm. wide.
Morphology Reproductive morphology Flowers Corolla
Petals lanceolate, acuminate, 7–7.5 mm. long, 2 mm. wide.
Morphology Reproductive morphology Flowers Labellum
Lip obscurely 3-lobed in the apical part, 8–9.5 mm. long, 3–3.5 mm. wide, auriculate at the base; side lobes tooth-like, blunt, 1 mm. long; mid-lobe narrowly triangular, fleshy at the apex, 3.5 mm. long, 1.5 mm. wide.
Morphology Reproductive morphology Flowers Spur
Spur pendent, slightly upcurved at the apex, slightly dilated in apical part, 18.5–19.5 mm. long.
Morphology Reproductive morphology Flowers Column
Column 3 mm. long; stipes Y-shaped, rugulose.
Figures
Pl. 8.
Habitat
In montane evergreen forest and dwarf forest, on tree trunks in deep shade; 1450–1600 m.
Distribution
K7 T3 not known elsewhere

Native to:

Kenya, Tanzania

Ypsilopus tanneri (P.J.Cribb) D'haijère & Stévart appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Jun 23, 1983 Faden, R.B. [971], Kenya Tridactyle tanneri K000382736
Tanner, L. [T 252], Tanzania Tridactyle tanneri 42529.000
Hall, J. [244], Tanzania Tridactyle tanneri 42541.000
Massawe, G. [539], Tanzania Tridactyle tanneri K000382733
Tanner, L. [252], Tanzania Tridactyle tanneri K000382735
Cribb, P.J. [10038], Tanzania Tridactyle tanneri K000306506 Unknown type material

First published in Taxon 68: 466 (2019)

Accepted by

  • Govaerts, R., Nic Lughadha, E., Black, N., Turner, R. & Paton, A. (2021). The World Checklist of Vascular Plants, a continuously updated resource for exploring global plant diversity. https://doi.org/10.1038/s41597-021-00997-6 Scientific Data 8: 215.

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/

Kew Backbone Distributions
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

Kew Names and Taxonomic Backbone
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0