222 



VANDE^. 



Chap. YIL 



but it cannot be predicted whether they alight on the 

 surface which is uppermost in the drawing (fig. 33) and 



Fig. 33. 



CyCNOOHES VENTBrOOSUM. 

 Flower viewed in its natural dependent position, 



c. column, after the ejection of s. stigmatic cavity. 



the pollinium together with 

 the anther. 

 f, filament of anther. 



L. labellum. 



pet. the two lateral jietala, 



then crawl over the margin so as to gnaw the convex 

 surface, and in doing so touch with their abdomens 



