BLACK ALDER. EUROPEAN ALDER. 



Alnus glutinosa (L.) Gaertn. 



Fig. 148. Branchlet, with mature leaves and fruit, and young aments (both staminate and pis- 

 tillate) for next season's flowers, i ; portion of cone with detached scales and seeds, 2 ; branchlet 

 in winter bearing young staminate (the larger) and pistillate (the smaller) aments, 3 ; do, with 

 leaf-buds only, 4. 



149. Trunk of tree with leaves at base. Staten Island, N. Y. 



