Chap. VII. CATASETUM SACCATUM. 



183 



Fig. 29. 



— T> 



CaTASETUM SACCATUM. 



a. anther. 



an, antennae of the rostellum. 



d. disc of polUnium. 



/. filament of anther. 



g. germen or ovarium. 



I. lahellum. 



p. pollen-masses. 



pd, or ped. pedicel of pollinium. 



s. stigmatlc chamber. 



A. Front view of column. 



B. Side view of flower, with all the 



sepals and petals removed ex- 

 cept the lahellum. 



C. Diagrammatic section through 



the column, with all the parts 

 a little separated. 



D. Pollinium, upper surface. 



E. Pollinium, lower surface, which 



before removal lies in close 

 contact with the rostellum. 



