Skip to main content
This species is accepted, and its native range is W. Tanzania to Zambia.
A specimen from Kew's Herbarium

[FTEA]

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

Morphology General Habit
An erect or spreading epiphyte forming small clumps; stems 1–9 cm. long, 7–8 mm. in diameter.
Morphology Roots
Roots smooth or slightly rough, 1.5–3.5 mm. in diameter.
Morphology Leaves
Leaves spreading-falcate, conduplicate, linear, unequally roundly bilobed at the apex, 8–13 cm. long, 0.7–0.8 cm. wide.
Morphology Reproductive morphology Inflorescences
Inflorescences 7.5–11 cm. long, 9–11-flowered; rhachis 1 mm. in diameter; bracts amplexicaul, ovate, 3 mm. long.
Morphology Reproductive morphology Flowers
Flowers pale green to creamy yellow; pedicel and ovary 4 mm. long.
Morphology Reproductive morphology Flowers Calyx
Dorsal sepal lanceolate, acuminate, 8–11 mm. long, 3.5–4 mm. wide; lateral sepals similar but oblique.
Morphology Reproductive morphology Flowers Corolla
Petals lanceolate, acuminate, 7–8 mm. long, 2.5–3 mm. wide.
Morphology Reproductive morphology Flowers Labellum
Lip 3-lobed in the apical half, 10–16 mm. long, 3–5 mm. wide, auriculate at the base; side lobes obliquely spreading, acute, half the length of the mid-lobe; mid-lobe narrowly triangular, 3.5–5 mm. long.
Morphology Reproductive morphology Flowers Spur
Spur filiform, decurved-pendent, 3.6–4.3 cm. long.
Morphology Reproductive morphology Flowers Column
Column 4 mm. long.
Habitat
In Brachystegia woodland, on the branches of trees in dappled shade; 1800–2100 m.
Distribution
T4

[FZ]

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

Morphology General Habit
Erect, epiphytic herb.
Morphology Stem
Stem usually short, 1–9 cm long.
Morphology Roots
Roots stout, up to 7 mm in diameter, clinging closely to bark of host, smooth or very slightly verrucose.
Morphology Leaves
Leaves 3–4, stiff, more or less erect, 7–14 × 0.7–1.4 cm, linear, conduplicate, unequally and roundly 2-lobed at the apex, slightly glaucous green.
Morphology Reproductive morphology Inflorescences
Inflorescences 1 or 2, arising at base of the stem, arching, 7.5–11 cm long, fairly densely c. 10-flowered.
Morphology Reproductive morphology Flowers
Flowers yellow, creamy-yellow or greenish-cream, c. 15 mm in diameter, arranged in 2 ranks, all facing the same way.
Morphology Reproductive morphology Flowers Pedicel and Ovary
Pedicel and ovary 4–6 mm long.
Morphology Reproductive morphology Inflorescences Bracts
Bracts to 3 mm long, sheathing.
Morphology Reproductive morphology Flowers Perianth
Sepals and petals lanceolate, acuminate; sepals 8–11 × 2.5–4 mm, the dorsal sepal with edges sometimes slightly erose, the lateral sepals somewhat oblique with the tips reflexed.
Morphology Reproductive morphology Flowers Corolla
Petals spreading, reflexed at tips, 7–8 × 2.5–3 mm.
Morphology Reproductive morphology Flowers Labellum
Lip 3-lobed in apical half, 10–16 mm long, 3–5 mm wide, auriculate at the base; mid-lobe 3.5–5 × 1 mm, narrowly triangular; side lobes shorter, obliquely spreading; spur 4–5 cm long, slender, at first parallel to ovary, then pendent.
Morphology Reproductive morphology Flowers Column
Column 4–5 mm long.

Native to:

Malawi, Tanzania, Zambia

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

Date Reference Identified As Barcode Type Status
Jul 12, 1982 la Croix, I. [245], Malawi Tridactyle citrina K000048617
Richards, H.M. [7272], Tanzania Tridactyle citrina 12335.000
la Croix, I. [91], Malawi Tridactyle citrina 45126.000
Richards, H.M. [11857], Tanzania Tridactyle citrina 8697.000
Richards, H.M. [15780], Tanzania Tridactyle citrina K000049443
La Croix, I.F. [903], Malawi Tridactyle citrina K000048618
la Croix, E.A.S. [902], Malawi Tridactyle citrina K000048619
Williamson, G. [230], Zambia Tridactyle citrina K000049440 Unknown type material
Williamson, G. [230A], Zambia Tridactyle citrina K000049442
Bullock, A.A. [2103], Zambia Tridactyle citrina K000049441
Pawek, J. [2570], Malawi Tridactyle citrina K000048620
Richards, H.M. [11857], Tanzania Tridactyle citrina K000049445

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 Zambesiaca
Flora Zambesiaca
http://creativecommons.org/licenses/by-nc-sa/3.0

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