154 



CONIFBRALES (RECENT) 



[CH. 



A B 



Fig. 703. A, Arjlnoslrobus pyntmhluJis. B, TetracUiiis nrliculata. (After Saxton.) 



Fig. 704. Pinus excelsa, cone and foliage-spur. 

 (From a photograph by A. Howard.) 



