2o6 po te I 6 ia 



cicles on dwarf branches on the 

 older parts of the tree. 



Larix p. i6i. 



B. Foliage leaves all spirally arranged upon 



the ordinary branches, often twisted so 

 as to appear two-ranked. 



a. Leaves non-resinous, with little odor 



when bruised and with a purely 

 bitter taste. Leaves mucronate, 

 twisted so as to appear two-ranked 



Tax us p. 147. 



b. Leaves resinous, aromatic or strong 



smelling when bruised; taste other 

 than purely bitter. Abies p. 162. 



C. Foliage leaves in whorls of three. 



Jiiniperus (Sect. Oxycedrus) p. 201. 

 Foliage wholly or largely of closely appressed 

 opposite or whorled scales. 



A. Spray not flattened, scale-leaves not het- 



eromorphous, leaves of strong growing 

 twigs sometimes acicular. 



Juniperus (Sect. Sahina) p. 203. 



B. Spray flat (i. e. the twigs of a branch all 



in the same plane), scale-leaves hetero- 



