ib 
MASTERS. 
LINN. Soc. JOURN., BOT. VOL. XXXV. PL. 20. 
Fic. 1.—Pinus sylvestris. 
Resin-canals, peripheral. 
owak 
Fic. 3.—Pinus cubensis. 
SECTIONS OF LEAVES OF PINUS. 
