CONE-BEARERS. 35 



tained, which, being distilled, forms the basis of med- 

 ical preparations called Abietene, Santa Abie, etc. 



VARIETIES OF BLACK PINE. 



SIERRA RED-BARK PINE. Var. (a) deflexa, Lemmon. 

 P. deflexa. Torr. Bot. Mex. Bound. 209. 



This form constitutes one of the principal timber 

 trees of the high Sierra, notably near Truckee. The 

 bark is usually reddish brown, thick, coarsely checked 

 as if braided, especially toward the top of the tree; 

 cones large, 6 to 10 inches long. . 



PENINSULA BLACK PINE. Yar. (6) peninsularis, Lemmon. 



On the San Rafael Mountains of Lower California; 

 bark dark brown, thick, deeply furrowed; cones re- 

 markably abundant and large, 6 to 8 inches long. 



MONTANA BLACK PINE. Var. (c) montana, Lemmon. 



A tree of the lake region of western Montana, 

 "with purple cones and long, glaucous foliage." 



Group 2. Little-Known Lumber 



PineSi Novitates. 

 Three Species of Arizona and Chihuahua. 

 No. 16 Arizona Five-Leaved Pine 



P. Arizonka, Engelm, 1878. 



A middle-sized tree 40 to 60 feet high, branches 

 spreading; leaves in 5's, 5 to 7 inches long; cones 



