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This species is accepted, and its native range is Central & SW. Tanzania to S. Tropical Africa.

[FZ]

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

Morphology General Habit
Small epiphytic, occasionally lithophytic, herb.
Vegetative Multiplication Pseudobulbs
Pseudobulbs 10–20 × 7–8 mm, ovate to conical, green or reddish, 2–3-leaved.
Morphology Leaves
Leaves 4–12 × 1–1.5 cm, lanceolate, oblong-lanceolate or oblanceolate, often purple-tinged or with a purple line around the edge.
Morphology Reproductive morphology Inflorescences
Inflorescence (floral axis) to 15 cm long, fairly densely up to c. 20-flowered.
Morphology General Indumentum
Peduncle, pedicel, ovary and bracts all minutely pubescent.
Morphology Reproductive morphology Flowers Pedicel and Ovary
Pedicel and ovary c. 7 mm long.
Morphology Reproductive morphology Inflorescences Bracts
Bracts 7–14 mm long, ovate, acuminate.
Morphology Reproductive morphology Flowers Perianth
Sepals and petals yellowish or yellow-brown, tinged with purple, becoming deep orange-brown as the flowers age; lip white with purple spotting on the side lobes and centre of mid-lobe.
Morphology Reproductive morphology Flowers Calyx
Sepals sparsely pubescent; dorsal sepal 9–12 × 2–4 mm, lanceolate, acuminate; lateral sepals 9–13.5 × 5.5–7 mm, obliquely lanceolate, somewhat falcate, long acuminate, keeled on the outside; mentum conical, 4.5–5 mm high.
Morphology Reproductive morphology Flowers Corolla
Petals 6.5–7.5 × 0.5–2 mm, narrowly oblanceolate.
Morphology Reproductive morphology Flowers Labellum
Lip strongly recurved, hard to flatten, 9–11 × 5 mm, 3-lobed with a long claw; mid-lobe 5.5–6 × 2–4 mm, oblong-lanceolate, acuminate, fleshy, bullate; side lobes erect, with a fleshy somewhat papillose callus lying between them.
Morphology Reproductive morphology Flowers Column
Column 1 mm long.

[FTEA]

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

Morphology General Habit
A small epiphytic plant to 15 cm. high.
Vegetative Multiplication Pseudobulbs
Pseudobulbs erect or suberect, narrowly cylindric-conical, to 2.5 cm. long, 7–8 mm. in diameter, 2–3-leaved at the apex.
Morphology Leaves
Leaves erect-spreading, oblong-ligulate to oblanceolate or linear, obtuse to subacute, 4–12 cm. long, 5–17 mm. wide, glabrous.
Morphology Reproductive morphology Inflorescences
Inflorescence erect; peduncle minutely puberulous, 3.5–5.5 cm. long; bracts ovate, acuminate, minutely puberulous, as long as ovary, 7–14 mm. long.
Morphology Reproductive morphology Flowers
Flowers whitish with a yellow-brown hood, lime-green to yellowish brown; lip white, side lobes lined crimson.
Morphology Reproductive morphology Flowers Calyx
Dorsal sepal lanceolate-oblong, acuminate, 8–11.2 mm. long, 2–3 mm. wide; lateral sepals obliquely lanceolate, somewhat falcate, keeled on reverse, 9–13.5 mm. long, 5.5–7 mm. wide, acuminate; mentum shortly conical, 4.6 mm. high.
Morphology Reproductive morphology Flowers Corolla
Petals linear-oblanceolate, subacute, 6.5–7.5 mm. long, 0.5–1.5 mm. wide.
Morphology Reproductive morphology Flowers Labellum
Lip genuflex-recurved towards the middle, with a long claw, 3-lobed, 9 mm. long, 5 mm. wide, glabrous; side lobes erect, oblong, 2 mm. wide, 3.5 mm. long; mid-lobe oblong-lanceolate, fleshy, bullate, very recurved, acuminate, to 5.5 mm. long, 2 mm. wide; callus fleshy, ± papillose but not pubescent, lying between the side lobes.
Morphology Reproductive morphology Flowers Column
Column terete, 1 mm. long; column foot 4.5 mm. long, glabrous.
Habitat
Epiphytic in evergreen forest; 1590–2300 m.
Distribution
T4 T7 T8

Native to:

Angola, Malawi, Tanzania, Zambia, Zaïre, Zimbabwe

Polystachya malilaensis Schltr. appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Pollock, Tanzania 11345.000
Batty [783], Tanzania 13903.020
Moreau, R.E. [861], Tanzania 17614.000
Morris, B. [BM82], Malawi 26058.000
Morris, B. [82], Malawi 28532.000
Moreau, R.E. [860], Tanzania 30455.000
La Croix, E. [26], Malawi 42798.000
la Croix, I. [208], Malawi 44266.000
la Croix, I. [162], Malawi 44305.000
Gassner, A. [216], Malawi 44312.000
la Croix, I. [512], Malawi 48832.000
Cribb, P.J. [6000], Malawi 49145.000
la Croix, I. [647], Malawi 50634.000
Richards, H.M. [10612], Malawi 595.000
Richards, H.M. [7300], Zambia 9137.000
Timberlake, J. et al. [5875], Mozambique K000718686

First published in Bot. Jahrb. Syst. 53: 566 (1915)

Accepted by

  • Govaerts, R. (2003). World Checklist of Monocotyledons Database in ACCESS: 1-71827. The Board of Trustees of the Royal Botanic Gardens, Kew.
  • 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

  • Szlachetko, D.L. & Mytnik-Ejsmont, J. (2015). Orchidaceae of West-Central Africa 2: 1-300. Koeltz Scientific books, Koenigsheim, Germany.

Flora of Tropical East Africa

  • Schltr. in A. Engler, Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie 53: 566 (1915).
  • Williamson, Orch. SC. Afr.: 124, fig. 64/18 (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

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