Miocene. California, Oregon. PLATE L V. 



Figures. 



1. Grewia auriculata, Lesqx., p. 252. 



2. Salix varians, Goepp., p. 247. 



3-5. Populus balsamoides, Goepp., p. 248. 



6. Salix august a, Al. Br., p. 247. 



7. Salix integra 1 Goepp., p. 248. 



