Oak (Cupuliferce) 209 



(2) Genus ALNUS, Tourn. (Alder.) 



Staminate flowers, in long, drooping clusters with three 

 (sometimes six) blossoms, and four or five small 

 bracts to each shield-shaped scale. Pistillate flowers, 

 in oval or oblong clusters, with two or three blossoms 

 to each fleshy scale. Scales and bracts, woody in 

 fruit. 



Leaves, simple, alternate, toothed. 



Fruit, in " cones," sometimes winged, scale-like, clustered. 

 A scale-like nutlet. 



Green Alder. Mountain Alder. A. viridis, D. C. 



Pistillate clusters, one half to two thirds of an inch 

 long, on slender stalk, appearing with the leaves. 

 April. 



Leaves, two to four inches long, egg-shape to rounded 

 and heart-shaped. 



Fruit, with a thin, broad wing. August. 



Found, along streams in the Alleghany Mountains to 

 North Carolina, and from Western Massachusetts 

 and New York westward and far northward. 



A shrub three to eight feet high. 



