28 WEST-AMERICAN 



No. 10 Parry Nllt- Pine P* Parryana, Engelm. 

 Small trees in the San Kafael Mountains, on the 

 peninsula of Lower California, with a few specimens 

 extending into San Diego County, California. Cones 

 smaller than the preceding, with soft-shelled seeds; 

 leaves in 5's, often in 4's, robust. 



No. 11 stone-Seed Pinyon - 



P. cembroides, Zuccarini. 



Small, round-headed trees of Arizona and Northern 

 Mexico, with small cones, but with very large, hard- 

 shelled seeds, largely used in Mexico for food and 

 much exported. Leaves slender, mostly in 3's. 



Group 3. Thimble-Cone Pines. 



Parviconce. 



Cones very small, slender, 1 to 3 inches long; 

 leaves short and in pairs. 

 Two Species: 



No 12 North-Coast Scrub Pine 



P. contorta, Dougl. 



Usually small, scrubby trees, on sandy dunes and 

 exposed promontories of the northwest coast of Cali- 

 fornia, northward to Alaska, the very small cones 

 often remaining on the trees for many years. The 

 cones are singularly variable even on the same 



