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SEXUAL FORMS OF CATASETtTM:. 



223 







C. macboglossum, BeicTib.f. 



% 







C. maculatum, Kuuth (C. integerriinuin, Rook. y C. Wailesii, 

 Hook.). 





C. Naso, Lindl. 



C. (Ebstedii, Beichb. f. 



\ See preceding list. 















c. 



Otto). 



planiceps, Lindl. (C. recurvatum, Link, Xlotzsch, &f 



Nees (C semianertuin. Hook 











VIRIDIFLAVUM, Rook. (C 

















































In some of the species one of the antennae stands forward in 

 front of the other, and the hinder one is usually, perhaps in- 

 variably, function less, as pointed out by Darwin in similar in- 

 stances; in others both are in the same plane and equally 

 sensitive. The same character appears in certain species of 

 the succeeding section, so that the superior lip of the male 



flower is the essential distinguishing character of the present 

 group. 





• 



Section II. Myanthus. — Dioecious ; lip inferior in the male, 

 generally much flatter than in JSucatasetum, superior in the 

 female, and galeate ; rostellum prolonged below into a pair of 

 slender antennae, which are either in different planes, and one of 

 them f unctionless, as in jEucatasetum, or both stand forward in 

 the same plane, over the lip, and are equally sensitive. 



It is a large group, comprising between thirty and forty 

 described species. The position of the antennae appears to offer 

 the best primary character for its subdivision, after which the 

 shape of the lip serves to distinguish two or three fairly natural 

 groups of species. 













































































Antenna; in different planes, one only sensitive 





C. pileatum, Beichb, f. See preceding list. 











C. Christyanum, Beichb. f. 

 C. laminatum, Lindl. 

























C. saccatum, Lindl. 



C. TABXTLABE, Lindl. 















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