Wi.] THE FERTILISATION OF FLOWERS. 55 
Orchis. The other three segments of the perianth 
are erect and small. The pistil gives rise to three 
EF Zl 
cn 
YY 
GU Wp 
v 
stigmatic lobes which are so developed as to resemble 
petals. Each of these stigmas is arched over a large 
Fic. 71. 
perianth segment, and shelters the stamen, likewise 
arched. Fig. 69 is a front view of one segment; SF 
