516 



PRACTICAL BOTAJSTY 



Mr 9".' 



I II 



Fig. 2. I, simple umbel of cherry ; II, catkins of willow 

 A, staminate flowers; B, pistillate flowers 



■# 



m 



f/fW V 



'^Lr-^ 



%i 



Fio. 3. A, spike of plantain ; B, head of red clover 



