PLATE 4 



Juglans calif ornica Wats. 

 Fig. 6. — a, h, c, d, e, nuts sectioned transversely; /, exterior of one 

 nut. X 1. 



Juglans valifornica var. qucrcina Babcock 

 Fig. G. — ij, h, i, ,/, A-, nuts sectioned tranversely; I, exterior of one nut. 

 X 1. 



[30] 



