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Fig. 35. Diagrams and dorsal views of "flowers," cymules, of Betulaceae showing 

 varied make-up of male flowers in a cymule. A, B, G, H, Carpinus japonica: A, B, 

 H, floral diagrams from terminal portion of ament, from transition region between 

 ament and twig, and from central portion of ament; G, dorsal view. C, Ostrtja 

 virginiana, floral diagram. D, Carpinus laxiflora, floral diagram. E, F, C. caroliniana, 

 dorsal view and floral diagram. I, J, Alnus firma var. hirtcllci, dorsal view, (Bi, Bz, 

 Ba, bracts of inflorescence) and floral diagram. Horizontal bar in E, G, and 1 

 represents one mm. In dorsal views, all anthers are removed, stamens represented 

 by filaments only. ( After Abbe. ) 



76 



