2II4 



A TEXTBOOK OF THEORETICAL BOTANY 



Fig. 2053. — Calanthe masuca. A, Flower. B, Flower with perianth removed, except the 

 labellum. Anther case removed to show the eight pollinia within the clinandrum. 

 C, as in B, but pollinia and disc removed showing the notched rostellum. (A after 

 Bateman. B and C after Darivin.) 



Fig. 2054. — Catasetum. A and D, Myanthus-iorm, flowers. In A the perianth has been 

 remo\ed except the labellum. F and H, Mouachanthiis-iorm (female) flowers. 

 B, Pollinia with strap-like caudicle and retinaculum. C, Column of Myanthus-iorm 

 in section showing the caudicle bent over the rostellum, with retinaculum tucked 

 in below it. G, the above, entire, showing the sensitive arms or antennae. {Partly 

 after Darivin.) 



