KEY TO GENERA AND SPECIES 



ward and west- 

 ward. (Figs. 10, 

 n.) Bald Cypress, 

 Taxodium disti- 

 chum (L.) Richard. 



12. Mature leaves con- 

 spicuously whiten- 

 ed beneath. Cones 



Magnified 



section 

 Leaf 

 Upright. North- enlarged 



eastward from Pa. 



and Wis. (Figs. 12, 



13.) Balsam Fir, Balsam, Firtree, Balm 



of Gilead Fir, Abies balsamea (L.) Mill. 



Fig. 12. Balsam Fir. 



Fig. 13. Balsam Fir, showing blisters on young trunk. 



