THE ORCHIDOLOOT OP INDIA. 63 



he has referred to the genus so wholly different a plant as Phreatia 

 elegans. The only species known at present on the continent of 

 India itself, furnishes some addition to the perplexity that sur- 

 rounds the genus. 



329. Th. pygmsea. {'EA\^Yoho%Q\% ^y^mddd^, Griffith, in Calcutta Journal 

 of Nat. Hist. V. 372. t. 26; Wight. Ic. t. 1732, not 1733.) 



Khasija hills, Griffith, Lobb ; at 2000-4000 feet elevation, flowers white, 

 J. D. H. Sf T. T. (29). 



Griffith's figure of his Euprohoscis pygmcea, in the Calcutta 

 Journal, is sufficient for the identification of this plant, which 

 seems to be common on the Khasija mountains. In that work 

 the name E. Grifflthii, quoted by Prof. Eeichenbach (Bonplandia, 

 Feb. 15, 1857), does not occur. Prof. Blume refers it to his 

 Th. capitata which differs in having a " spica densa ovoidea deinde 

 cylindrica," and an ovate obtuse lip, a description that in no way 

 applies to this. Dr. Wight's figure is a good one, but from a 

 small specimen whose flowers are in a state of Peloria. The name 

 pygm(Ba is objectionable, for there are specimens before me as 

 much as 8 inches high ; it must however stand. A Thelasis from 

 Hong Kong, sent by Dr. Hance (287), appears to be either this 

 or Th. triptera-, but my specimens are not good enough for 

 positive determination. 



330. Th. ochreata; foHo coriaceo lorato obtuse canaliculato basi 

 squama maxima laxa truncata stipato, scapo foliis duplo breviore 

 vaginis maximis laxis truncatis baseos binis medii solitaria, spica den- 

 si ssima bracteis reflexis acutis amplexicaulibus duris concavis, ovario 

 obovato, sepalis alte carinatis supremo galeato, labello ovato obtuso. 



Borneo ; low forests of Sarawak, T. hobb. 



I should have thought that this might have been Blume's Th, 

 capitata, judging from his latest definition ; but Prof. Eeichenbach, 

 who has carefully examined that plant, describes the leaves as 

 cuneate and equally 2-lobed, and the sepals entirely without 

 carinse. The leaves are a foot long when full-grown. 



I have two or three more species of the genus, but until some 

 authentic evidence concerning Blume's plants reaches me, I can- 

 not venture to name them. 



A Note upon Pseudo centrum, a New Genus of Orchidacece. 



By Prof. LiNDLET, F.E.S. 



[Read March 4th, 1858.] 



Among the numerous collections of Peruvian Orchids which have 



been communicated to me from time to time by my excellent corre- 



