KEY TO GENERA AND SPECIES 



alike; whitened on the real 

 upper surface (which is com- 

 monly turned towards the 

 ground) and green on the 

 lower surface, spiny pointed. 

 Rarely a small tree, generally 

 a shrub. Central New Eng- 

 land and southward in the 

 mountains. Common Juni- 

 per, Juniperus communis L. 

 The low spreading Dwarf 

 Juniper (var. depressa Pursh), 

 with leaves rarely ^ inch long, 

 is the common form of this 

 species in New England and 

 westward. (Figs, i, 3.) 



4. Leaves of two forms, one form awl-shaped, 

 two at a node, with the real 

 upper surface whitened, as 

 in the Common Jumper; the 

 other (usually on older trees) 

 consisting of short overlap- 

 ping scale-like leaves ar- 

 ranged in four more or less 

 distinct longitudinal rows. 



Fig. 2. Red Cedar, a. Twig Southern Maine and New 

 with awl-shaped leaves; Hampshire southward and 



b. Iwig with scale-like N 



leaves; c. Section of b. westward. (FlgS. 2, 3, 4.) 



Fig. i. Dwarf 

 Juniper. 



