THE ANGIOSPERMAE 



1357 



Fig. 1263. — Viola hirta. Plant with cleistogamous flowers 

 (a) and developed capsules (b). i. Cleistogamous 

 flower. ^ = petals, A = calyx, a = bracteole. 2. The 

 same after removal of the calyx. {After Velenovsky.) 



Fig. 1264. — Viola riviniana. A, Chasmogamous flower in section. B, Anterior stamen. 

 C, Style. D, Cleistogamous flower. E, Anterior stamen. F, Style. {After West.) 



