372 



J. S. DILLEK THE JURASSIC FLORA OF OREGON 



LEGEND 



SEDIMENTARY 

 ROCKS 



EOCENE 



UmpqucL 

 CRETACEOUS 



'MyrtLe" 





Plant -beds 

 JURASSIC 



Oo+han 



IGNEOUS 

 ROCKS 



'■*''>ty. 



Greenstone 



Serpentine 



FiGUEE 2. — Nichols and Buck Peak Region, Douglas County, Oregon 



