24 



Betula lenta, L. Cherry Birch. Black Birch. Sweet Birch. 



"Gloucester: Plentiful in a ravine east of Mullica Hill, 

 and common in woods, middle and northern counties." (Brit- 

 ton.) 



Betula Ivied, Michx. Yellow Birch. Gray Birch. 



"In woods, northern counties. Bergen : Closter and Pali- 

 sades. Passaic : West side of Bearfoot mountain. Morris : 

 Lake Hopatcong, Brook Valley and near Hurdtown. Essex 

 county. Sussex: Near Morris pond." (Britton.) 



^Betula nigra, L. Bed Birch. River Birch. 



"Along rivers and lakes. Common throughout the State. 

 Especially abundant along the Delaware and all its tributary 

 streams." ( Britton. ) 



"Species more or less abundant in both deciduous and conif- 

 erous zones." (Geol. Rpt, '99, Hollick, 185.) 



* Betula populifolia, Marsh. Gray Birch. White Birch. 



"In sw T ampy soil. Common throughout most of the State, 

 but locally rare in the southern counties and along the Dela- 

 ware." (Britton.) 



"Species more or less abundant in both deciduous and co- 

 niferous zones." (Geol. Rpt, '99, Hollick, 185.) 



Alnus tenuifolia, Nutt Alder. 



"Low grounds in the northern counties. Morris : Budd's 

 lake. Sussex: Near Andover and at Culver's Gap." 

 (Britton.) 



Alnus oblongifolia, Torr. Alder. 



"In low grounds. Common throughout the State." 

 (Britton.) 



