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This species is accepted, and its native range is S. Central Tanzania to N. Mozambique.
A specimen from Kew's Herbarium

[FZ]

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

Morphology General Habit
Dwarf, epiphytic herb up to c. 7 cm high.
Vegetative Multiplication Pseudobulbs
Pseudobulbs 6–18 × 3–5 mm, conical to ovoid, with 2–3 nodes, 2–3-leaved.
Morphology Leaves
Leaves c. 3 × 0.4 cm, lanceolate or oblanceolate, conduplicate, subacute to obtuse.
Morphology Reproductive morphology Inflorescences
Inflorescence (floral axis) produced before leaves develop, 2–5 cm long, 4–10-flowered.
Morphology General Indumentum
Peduncle, bracts and flowers all somewhat pubescent.
Morphology Reproductive morphology Inflorescences Bracts
Bracts large, 6.5 × 8 mm, cordate, mucronate, papery.
Morphology Reproductive morphology Flowers Perianth
Sepals and petals greenish-white or greenish-yellow, the sepals purple-tinged; lip white with a yellow-green mid-line.
Morphology Reproductive morphology Flowers Calyx
Dorsal sepal 7 × 2–3 mm, lanceolate, acuminate; lateral sepals 8 × 4.5 mm, obliquely lanceolate-falcate, acuminate; mentum 4 mm long, conical.
Morphology Reproductive morphology Flowers Corolla
Petals 6 × 1.8 mm, oblong or oblanceolate, obtuse.
Morphology Reproductive morphology Flowers Labellum
Lip 5.5 × 4 mm, recurved, shortly clawed, 3-lobed in the basal half; mid-lobe 4 × 1.8 mm, lanceolate, acuminate, fleshy, bullate; side lobes erect, rounded, clavate-pubescent; callus fleshy, clavate-pubescent.
Morphology Reproductive morphology Flowers Column
Column short.

[FTEA]

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

Morphology General Habit
Dwarf epiphytic herb 3–7 cm. high.
Vegetative Multiplication Pseudobulbs
Pseudobulbs 4 mm. apart on a short stout creeping rhizome. Pseudobulbs erect or slightly curved, cylindrical-conical to ovoid- conical, 0.6–1.8 cm. long, 0.3–0.5 cm. diameter, 2–3-noded in apical half, drying yellow, 2–3-leaved.
Morphology Leaves
Leaves suberect, spreading above, conduplicate, subacute to obtuse, 3 cm. long, 0.4 cm. wide.
Morphology Reproductive morphology Inflorescences
Inflorescence erect, 2–5 cm., produced before the leaves have developed, racemose, 4–10-flowered; peduncle wiry, somewhat flattened, pubescent; bracts large, papery, cordate, mucronate, 6.5 mm. long, 8 mm. wide, sparsely pubescent.
Morphology Reproductive morphology Flowers
Flowers spreading, sparsely pubescent, colour unrecorded.
Morphology Reproductive morphology Flowers Calyx
Dorsal sepal lanceolate, acuminate, 7 mm. long, 2.8 mm. wide; lateral sepals obliquely lanceolate-falcate, acuminate, 8 mm. long, 4.5 mm. wide, forming with the column-foot a shortly conical mentum 4 mm. high.
Morphology Reproductive morphology Flowers Corolla
Petals oblong or oblanceolate, obtuse, 6.5 mm. long, 1.8 mm. wide.
Morphology Reproductive morphology Flowers Labellum
Lip very shortly clawed, recurved in middle, 3-lobed in basal half, 5.5 mm. long and 4 mm. wide when spread out; side lobes erect, subquadrate-rounded, clavate-pubescent; mid-lobe lanceolate, acuminate, fleshy, 4 mm. long, 1.8 mm. wide, bullate-rugulose, glabrous; callus fleshy, clavate-pubescent.
Morphology Reproductive morphology Flowers Column
Column short; anther hemispherical, verrucose at apex.
Habitat
In riverine forest; 600 m.
Distribution
T8

Native to:

Malawi, Mozambique, Tanzania

Polystachya magnibracteata P.J.Cribb appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Nov 2, 1994 Johnston-Stewart, N.C.B. [s.n.], Malawi K000390021
Mar 22, 1982 Welch, J.R. [315], Malawi K000390022
Mar 10, 1977 Mgaza, C.D. [125], Tanzania K000242231 Unknown type material
Mar 10, 1977 Mgaza, C.D. [125], Tanzania K000242232
Leedal, G.P. [7261], Tanzania K000390023
La Croix, I.F. [211], Malawi K000390020

First published in Kew Bull. 32: 684 (1978)

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.

Literature

Kew Backbone Distributions

  • Mytnik-Ejsmont, J. (2011). A monograph of the subtribe Polystachyinae Schltr. (Orchidaceae): 1-400. Fundacja Rozwoju Uniwersytetu Gdanskiego.

Flora of Tropical East Africa

  • Cribb in Kew Bulletin 32: 684, fig. 2A–H (1978).

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