G. Buds cylind r i c, 

 with spreading 

 scales little or not 

 resinous: lvs.8-12 



green, tn z s 



S's 



GG. Buds oblong-i 



PINUS 



G. Buds resinous 35. muricattv 



GG. Buds not resinous. 

 H. Besin-ducis par- 

 enchymatous. ..37. Pinastei 

 HH. Besin -ducts pe- 

 ripheral 39. Pinea 



EE. Scales of the thick 



FW. Foliage dull: resin- 

 ducts parenchyma- 

 tous ' 



Key Based on Cones and Seeds. 



