SPERMATOPHYTA. 37 



grandidentata Michx. Large-toothed Aspen. 



With the preceding. 

 candicans Ait. Balm of Gilead. 



Escaped from cultivation, 

 deltoides Marsh. Cottonwood Poplar. . 



Millbury, probably transplanted. 



MYRICACE^E (SWEET GALE FAMILY). 



Myrica L. 



Gale L. Sweet Gale. 



In swamps and along ponds, common, 

 carolinensis Mill. Bayberry. In dry soil, common, 

 asplenifolia L. Sweet Fern. In dry soil, very common. 



JUGLANDACE^S (WALNUT FAMILY). 



Juglans L. Walnut. 



cinerea L. Butternut. In rich woods, common. 



Carya Nutt. Hickory. 



ovata (Mill.) K. Koch. Shag-bark Hickory. 



In woods and pastures. 

 glabra (Mill.) Spach. Pignut. 



In woods and pastures, common, 

 cordiformis (Wang.) K. Koch. Bitter Nut. 



In woods and swamps. Millbury. 



BETULACE^E (BIRCH FAMILY). 



Corylus (Tourn.) L. Hazelnut. 

 americana Walt. Hazelnut. 



In thickets and by roadsides, 

 rostrata Ait. Beaked Hazel. With the preceding. 



