98 
Corylus Americana, Walt. (ComMMoN HaZzEL-NUT.) 
Along walls and roadsides. Common. 
Corylus rostrata, Ait. (BEAKED HAZEL-NUT.) 
Similar places, but not so common. 
Ostrya Virginica, Willd. (Hor-HornBEam.) 
Frequent in many towns. 
Carpinus Caroliniana, Wailt., Carpinus Americana, Michx. (Gray’s 
Manual.) (HORNBEAM; BLUE BEECH.) 
Rather less common than the last. 
MYRICACEA., 
(SWEET-GALE FamILy.) 
Myrica Gale, Z. (Swert GALez.) 
Swamps and borders of ponds. Common. 
Myrica cerifera, Z. (BAyYBERRY.) 
Pastures, etc. Common. 
Comptonia asplenifolia, Ait. (SwEET-FERN.) 
Pastures and hills. Common. 
BETULACEA. 
(BrrcH FaMIty. ) 
Betula lenta, Z. (SwrEeEtT or Buack Brrcu.) 
Frequent. 
Betula lutea, Michz., f. (YELLow or Gray Brirca.) 
Quite common. 
Betula alba, var. populifolia, Spach. (WuITE 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, Z. (RED oR RIVER Bircu.) 
North Andover and Lawrence, near the Merrimac river. 
Betula pumila, Z. (Low Brircu.) 
‘‘Shore of North Andover pond” and ‘‘on a railroad track in 
Groveland” (S. P. Fowler, Proc. E. I., Vol. II, pp. 402 and 409), 
Rockport (Pool, in “Pigeon Cove and vicinity”). Specimens 
brought to the P. A. §., in 1879, from the shore of Pentucket pond, 

