2100 A TEXTBOOK OF THEORETICAL BOTANY 



Fig. 2036. — Ophrys opifera. A, Flower. B, Pollinia dm'7ling on the elongated caudicles. 

 C, Pollinium with caudicle and retinaculum. (A after Soiverby. B after Danvin.) 



pollinia impinge on the stigmatic surfaces of the next flower visited (Fig. 

 2037)- 



Fig. 2037. — Anacamptis pyramidalis. A, Labellum and column in face view, showing the 

 two lateral stigmas and the saddle-shaped rostellum at the base of the anther. B, Flower 

 in section (compare B in Fig. 2035). C, Pollinium and caudicle. (After Dandn.) 



