S. pedjcellaris Pursh. Deerfield, E. Tuckerman. 



discolor Muhl. Glaucous Willow. 



humjhs Marsh. Prairie Willow. 



tristis Ait. Dwarf Gray Willow. 



sericea Marsh. Silky Willow. 



rostrata Richards. 



PURPUREA L. Purple Willow. Near Conway, H.G. Jesup; Glen- 

 wood, Springfield. 

 Populus [Tourn.] L. Poplar. Aspen. 



alia L. White Poplar. Silver Leaved Poplar. 



tremuloides Michx. American Aspen. 



grandidentata Michx. Large-toothed Aspen. 



bahamifera L. Balsam Poplar. 



candicans Ait. Balm of Gilead. 



deltoides Marsh. Cottonwood. Necklace Poplar. 



NIGRA L. Black Poplar. Occasionally spreading by root suck- 

 ers, var. ITALICA Du Roi. Rarely, if ever, spread- 

 ing. 



MYRICACEAE 



Myrica L. 



Gale L. Sweet Gale. Gill, E. H. Sharpe ; Shutesbury, R. E. 



Torrey ; Belchertown, etc. 

 carolinensis Mill. Bayberry. Wilbraham, E. Longfellow, Dr. 

 W. H. Chapin ; Conway, etc. Much more common near 



the coast. 

 asphnifoha L. Sweet Fern. 



JUGLANDACEAE 



Juglans L. Walnut. 



cinerea L. Butternut. 



nigra L. Black Walnut. Native in Amherst, etc., but rare in our 

 range. 

 Carya Nutt. Hickory. 



ovata (Mill.) K. Koch. Shagbark Hickory. 



alba (L.) K. Koch. Mocker Nut. 



glabra (Mill.) Spach. Pig Nut. 



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



