





















-. 



222 





MR. R. A. ROLFE ON THE 



\ 



position of the lip is not mentioned, but from the characters given 

 I believe it belongs to the section Myanthus. 





16. Catasetum vabiabile, Bodr. 





Nov 



(§ Myanth 

 2 . C. variabile, Bodr. 1. c. p. 217 (§ Monach 



Only known to me by the description, from which it is clear 

 that the two forms described are simply the sexual states of the 











species 



■ 



Subdivisions of the Genus Catasetum. 

























No attempt has hitherto been made to separate the species of 







.tural 























i 





of the mystery which has surrounded them and the accumulation 

 of a more complete series of specimens, it is certain that such a 

 subdivision will be not only possible, but absolutely necessary, in 

 order to get something like a clear idea of their relations to each 

 other. There appears to me to be four very distinct sections 

 under which the species may be grouped ; and I have not seen a 

 single species of which there can be any doubt as to its position. 

 The second group, however, Myanthus, absorbs the majority of 

 the species. The following list only includes some of the better 

 known species, and is not intended to be exhaustive. 

























. 











■ 











Section I. Eucatasetum. — Dioecious ; lip superior in 



both 













sexes, generally more or less galeate in the male, always so (as 

 far as known) in the female ; rostellum prolonged below into a 

 pair of slender cirrhi, the antennae, one of which is generally 

 curved forward in front of the column and sensitive, the other 











- 















curved round near its base and functionless. 





To this section belongs C. macrocarpum, Rich., on which the 

 genus was founded, and some nine or ten others, at least. The 

 following species, and perhaps a few others, belong to the 









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' 











group : 







■ 



C. athatum, Lindl. 









- 











* 







C. Gnomus, Linden & Beivhb.f. V See preceding list. 











a 



















L 

 1 



C. maohocabpum, Bich. 







* 























* 







• 

























r 





















































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'/ *i 



