50 WEST-AMERICAN 



Male flowers, oblong, \ to 1 inch long. Three closely 

 related genera, often considered as one polymorphous 

 genus, but clearly distinct. The Spruces. 

 Two sections: 



Sec. I. Naked-Coned Pendants 



Inclusce. 



Cones terminal, the bracts short, concealed at ma- 

 turity by the cone-scales. Male flowers terminal, like 

 the cones. Two genera: 



Third Genus, 



THE TRUE SPRUCES- 



The branchlets of the True Spruce are rough from 

 the presence of prominent leaf-bases that become 

 hardened and persistent; the cones are terminal on leafy 

 branchlets; the bracts are smaller than the scales; the 

 leaves are sessile (i. e., not narrowed into stalks at 

 base), keeled on both upper and lower sides, and with 

 two lateral resin ducts from end to end; the seeds are 

 without resin vesicles. Male flowers solitary, and 



