Beteran Conoco: Katanga District, Kafuba, fairly common, Dec. 
22nd., 1923, von Hirschberg 156. 
This truly remarkable plant is evidently a near ally of 
HI. Mechrowtt Reichb. f., from which it differs by the 
characters given in the diagnosis. The most striking dif- 
ferences are the long pedicels which carry the flowers well 
away from the bracts and make the inflorescence much 
more open, and the very much longer spur. In general 
floral structure there is a strong resemblance to many 
members of sect. Ceratopetalae, e.g. HI. cirrhata (Lindl. ) 
Reichb.f. and HY. Lawrentii De Wildem., but the col- 
umn is different while the stigmas are shorter and thicker. 
The name is given in honour of the collector, Mr. 
Edgar Milne-Redhead, whose collection of Northern 
Rhodesian orchids, including nearly 250 gatherings, con- 
sisting of numerous perfectly dried specimens accompa- 
nied by flowers in liquid preservative and ample colour 
and habitat notes, must rank as one of the finest ever 
made on the African continent. 
Polystachya tessellata Lindley in Journ. Linn. 
Soc. Lond. Bot. 6 (1862) 130. 
Polystachya tricruris Reichenbach filius in Flora 50 
(1867) 118. 
Polystachya hypocrita Reichenbach filius in Gard. 
Chron. new series 16 (1881) 685. 
Polystachya Buchanani Rolfe in Bull. Mise. Inform. 
Kew 18938 (1894) 335. 
Polystachya similis Bolus Ic. Orch. Austr.-Afric. 2 
(1911) t. 83, partim—Rolfe in Dyer FI. Cap. 5, sect. 
3 (1912) 63, partim, non Reichenbach filius. 
Polystachya Lettowiana Kraenzlin in Fedde Repert. 
Spec. Nov. Beih. 89 (1926) 54. 
Polystachya lepidantha Wraenzlin in Bull. Mise. In- 
form. Kew (1926) 290. 
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