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This species is accepted, and its native range is South Sudan and S. Africa.
A specimen from Kew's Herbarium

[FZ]

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

Morphology General Habit
Erect, epiphytic or lithophytic herb 8–25(50) cm tall, drying black.
Morphology Stem
Stems cylindrical, 2–5-leaved, covered with black, tubular sheaths.
Morphology Leaves
Leaves 8.5–13 × 0.7–2 cm, ligulate or linear-lanceolate, obtuse at apex, dark green, often purplish.
Morphology Reproductive morphology Inflorescences
Inflorescence (floral axis) 3–13 cm long, of similar length to the leaves, unbranched, or occasionally 1–3-branched, sparsely pubescent, up to 12-flowered.
Morphology Reproductive morphology Flowers
Flowers glabrous on outer surface, green, yellow-green or bright yellow, sometimes purple-tinged; lip creamy-white, purple-veined.
Morphology Reproductive morphology Flowers Pedicel and Ovary
Pedicel and ovary 3–9 mm long.
Morphology Reproductive morphology Inflorescences Bracts
Bracts 3–7 mm long, ovate, acuminate.
Morphology Reproductive morphology Flowers Calyx
Dorsal sepal 5.5–10 × 2.5–4 mm, ovate, acute; lateral sepals 8.5–15 × 6–9.5 mm, obliquely triangular, acute or acuminate; mentum 5.5–9 mm long, conical.
Morphology Reproductive morphology Flowers Corolla
Petals 5–7.5 × 1–2 mm, oblanceolate to spathulate.
Morphology Reproductive morphology Flowers Labellum
Lip with a long claw, obscurely 3-lobed in the apical half, recurved, 6.6–11 × 6–8 mm; mid-lobe 2.5–3 × 2.6–3 mm, triangular, subacute; side lobes rounded.
Morphology Reproductive morphology Flowers Column
Column 2.5 mm long.

[FTEA]

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

Morphology General Habit
An erect epiphytic plant, 7–53 cm. high.
Morphology Stem
Stems terete, 4–45 cm. long, completely covered by imbricating leaf bases, 5–8-leaved.
Morphology Leaves
Leaves distichous, well spaced on stem, ligulate or linear-lanceolate, rounded or obtuse at apex, 4.5–13 cm. long, 7–20 mm. wide, drying black.
Morphology Reproductive morphology Inflorescences
Inflorescence erect, shorter to slightly longer than the leaves, unbranched or weakly 1–3-branched, 3–13 cm. long; peduncle and rhachis terete, 1–6 cm. long, sparsely pubescent; bracts ovate, acuminate, recurved, 3–7 cm. long.
Morphology Reproductive morphology Flowers
Flowers erect, glabrous on outer surface, sepals cream, yellow, yellow-green, green or orange variously suffused with brown or purple, petals and lip dull cream to greenish veined with maroon.
Morphology Reproductive morphology Flowers Calyx
Dorsal sepal ovate, acute or subacute, 5.4–8.2 mm. long, 2.5–4.2 mm. wide; lateral sepals obliquely triangular, acute or acuminate, 8.4–11.3 mm. long, 6.2–9.5 mm. wide; mentum cylindric-conical, 5.5–9 mm. long.
Morphology Reproductive morphology Flowers Corolla
Petals oblanceolate-subspathulate, acute to obtuse, 4.8–6.6 mm. long, 1.1–1.9 mm. wide.
Morphology Reproductive morphology Flowers Labellum
Lip long-clawed, recurved, obscurely 3-lobed in apical half, sinuses between the mid-lobe and side lobes obscure, 6.6–10.5 mm. long, 5.7–8 mm. wide; side lobes rounded; mid-lobe broadly triangular, 2.5 mm. long, 3.6 mm. wide, subacute, obtuse or shortly apiculate.
Morphology Reproductive morphology Flowers Column
Column semi-terete, 2.5 mm. long.
Habitat
In upland rain-forest and mist forest; (1200–) 1800–2900 m.
Distribution
K3 K4 K5 K6 K7 T2 T3 T6 T7 U1 U2 U3

Native to:

Burundi, Kenya, KwaZulu-Natal, Malawi, Mozambique, Northern Provinces, Rwanda, Sudan, Swaziland, Tanzania, Uganda, Zambia, Zaïre, Zimbabwe

Polystachya transvaalensis Schltr. appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Sep 12, 2012 Timberlake, J. [5864], Mozambique K000718693
Jan 1, 2011 s.coll. [s.n.], Zimbabwe K000718244
May 22, 2009 Harris, T. [632], Mozambique K000614217
Oct 26, 1955 Kirk [s.n.], Malawi K000242304
Milne-Redhead, E. [8174], Tanzania 17054.000
Williamson, G. [225], Zambia 1800.062
Richards, H.M. [14125], Tanzania 1814.000
Milne-Redhead, E. [8915], Tanzania 20080.000
Copley, H. [68], Kenya 20081.000
Eggeling, W.J., Uganda 20082.000
Eggeling, W.J. [6370], Tanzania 20083.000
Jones, R. [25167], Zimbabwe 21259.000
Drummond, R.B. [1671], Tanzania 21260.000
Polhill, R. [1839], Tanzania 24643.000
Polhill, R. [1487], Tanzania 25124.000
Polhill, R. [1645], Tanzania 27235.000
Morris, B. [32A], Malawi 28317.000
Mason, L.M. [2615], Reunion 32682.000
Cribb, P. [10710], Tanzania 35762.000
Cribb, P. [10461], Tanzania 35771.000
Leedal, G.P. [2628], Tanzania 37467.000
la Croix, I. [27], Malawi 42781.000
Owen, D. [018], Malawi 44009.000
Lovett, J. [302], Tanzania 48355.000
Jenkins, P., Malawi 50914.000
Nsolomo, V.R. [88016/U], Tanzania 53566.000
Zimbabwe 598.000
Richards, H.M. [10476], Malawi 599.000
Germain, R. [3914], Congo, DRC 9191.000
Drummond, R.B. [1299], Tanzania 9193.000
Pullen, I.B., Tanzania 9202.000
Drummond, R.B. [2475], Tanzania 9203.000
Drummond, R.B. [1575], Tanzania 9204.000
Jannerup, P.L. [0392], Tanzania 71162.000
Jannerup, P.L. [0391], Tanzania 71167.000
Timberlake, J. [5206], Mozambique K000613934

First published in Beibl. Bot. Jahrb. Syst. 50: 28 (1895)

Accepted by

  • Darbyshire, I., Kordofani, M., Farag, I., Candiga, R. & Pickering, H. (eds.) (2015). The Plants of Sudan and South Sudan: 1-400. Kew publishing, Royal Botanic Gardens, Kew.
  • Fischer, E., Rembold, K., Althof, A. & Obholzer, J. (2010). Annotated checklist of the vascular plants of Kakamega forest, Western province, Kenya Journal of East African Natural History 99: 129-226.
  • Govaerts, R. (2003). World Checklist of Monocotyledons Database in ACCESS: 1-71827. The Board of Trustees of the Royal Botanic Gardens, Kew.
  • Harris, T., Darbyshire, I. & Polhill, R. (2011). New species and range extensions from Mt Namuli, Mt Mabu and Mt Chiperone in northern Mozambique Kew Bulletin 66: 241-151.
  • Johnson, S. & Bytebier, B. (2015). Orchids of South Africa. A field guide: 1-536. Struik nature, Cape Town, South Africa.
  • Mytnik-Ejsmont, J. (2011). A monograph of the subtribe Polystachyinae Schltr. (Orchidaceae): 1-400. Fundacja Rozwoju Uniwersytetu Gdanskiego.
  • Szlachetko, D.L. & Mytnik-Ejsmont, J. (2015). Orchidaceae of West-Central Africa 2: 1-300. Koeltz Scientific books, Koenigsheim, Germany.

Literature

Kew Backbone Distributions

  • Fischer, E., Rembold, K., Althof, A. & Obholzer, J. (2010). Annotated checklist of the vascular plants of Kakamega forest, Western province, Kenya Journal of East African Natural History 99: 129-226.
  • Harris, T., Darbyshire, I. & Polhill, R. (2011). New species and range extensions from Mt Namuli, Mt Mabu and Mt Chiperone in northern Mozambique Kew Bulletin 66: 241-151.

Flora of Tropical East Africa

  • Kraenzl. in F. Fedde, Repertorium Speciorum Novarum Regni Vegetabilis, Beih. 39: 14 (1926).
  • Piers, Orch. E. Afr., ed. 2: 140 (1968).
  • Schltr. in A. Engler, Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie 20: 28 (1895).
  • Stewart in A.D.Q. Agnew, Upland Kenya Wild Flowers p. 768, fig. (1974).
  • Summerh. in Kew Bulletin 11: 227 (1956).
  • Williamson, Orch. SC. Afr.: 117, fig. 61/3 (1977).

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