Hi.] THE FERTILISATION OF FLOWERS. 



55 



Orchis. The other three segments of the perianth 

 are erect and small. The pistil gives rise to three 



SB"' 



- IP 



FIG. 69. 



stigmatic lobes which are so developed as to resemble 

 petals. Each of these stigmas is arched over a large 



FIG. 71. 



FIG. 70. 



perianth segment, and shelters the stamen, likewise 

 arched. Fig. 69 is a front view of one segment; SF 



