98 



Corylus Americana, Walt. (Common Hazel-nut.) 



Along walls and roadsides. Common. 

 Corylus rostrata, Ait. (Beakbd Hazel-nut.) 



Similar places, but not so common. 



Ostrya Virginlca, Willd. (Hop-Hornbeam.) 

 Prequent in many towns. 



Carpinus Caroliniana, Walt., Carpinus Americana, Miohx. (Gray's 

 Manual.) (Hornbeam ; Blue Beech.) 

 Kather less comnjon than the last. 



M:YRICACB.ffil. 



(Sweet-Gale Eamilt.) 



Myrica Gale, L. (Sweet Gale.) 



Swamps and borders of ponds. Common, 

 Myrica cerifera, L. (Baybbrry.) 



Pastures, etc. Common. 



Comptonia asplenifolia. Ait. (Sweet-Fern.) 

 Pastures and hills. Common. 



BETULACE.ffiI. 



(Birch Family.) 



Betula leuta, L. (Sweet or Black Birch.) 

 ' Frequent. 



Betula lutea, Michx., t. (Yellow or Gray Birch.) 

 < Quite common. 



Betula alba, var. populifolia, Spaeh. (Whitb Birch.) 

 Very common on hillsides, and by the roads. 



Betula papyracea, Ait. (Paper or Canoe Birch.) 

 Occasional. Salem Great Pastures. Wenham pond, north shore. 

 Danvers, and more frequently in the northwestern portion of the 

 county. 



Betula nigra, L. (Red or Kiver Birch.) 

 North Andover and Lawrence, near the Merrimac river. 



Betula pumila, L. (Low Birch.) 



"Shore of North Andover pond" and "on a railroad track in 

 Groveland" (S. P. Fowler, Proc. E. I., Vol. 11, pp. 402 and 409), 

 Eockport (Pool, in "Pigeon Cove and vicinity"). Specimens 

 brought to the P. A. S., in 1879, from the shore of Pentucket pond, 



