208 MendeUan Inheritance in Bryonia dioica 



o-i n-nm. 



Fig. 3. Transverse section across ovary of ? liower of B. dioica. var. IS, 



showing the tliree-carpellary condition. Details as in Fig. 4. 



Camera lucida drawing. 



Yb._. 



O 



0-1 Trvm 



Fig. 4. Transverse section across ovary of ? {lower of i>'. dioica, var. G, 



showing the two-carpellary condition. o = ovule ; (■i = vascular bundles. 



Camera lucida drawing. 



