254 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
CORYLUS. TIazeTlnut. 
C. americana Walt. Hazelnut. — Dry soil; common in the 
extreme southern part of the County; P^gremont; Sheffield. Occa- 
sional as far north as Lenox Hill (Schneider and Schweinfurth). 
C. rostrata Ait. Beaked Hazelnut. — Borders of woods and 
roadside thickets; common on the upland and frequent in the valley, 
occurring occasionally with C. americana. 
OSTRYA. Hop IIcjuxheam; Ikoxwood. 
O. virginiana (Mill.) K. Koch. American Hop Hornbeam. — 
Open rocky woods and hillsides, particularly in calcareous soil; fre- 
quent in the valleys, occasional on the plateau (altitude 2000 feet. 
Savoy.) 
FAGACEAE. BEECH FAMILY. 
CASTANEA. Chestnut. 
C. dentata (Marsh) Borkli. Chestnut. — Rich woods; common 
in the valley, frequent on the lower parts of the plateau, absent from 
the higher parts. 
FAGUS. Beech. 
F. grandifolia Ehrh. Beech. — Rich woods; common on the 
plateau, frequent in the valleys. Summit of Greylock, altitude 3500 
feet. 
forma pubescens Fernald & Rehder.— ( Ftrf. Rhodora, 9: 111, 
1907.) Williamstown (Rehder). 
Differs from the type in having the under side of the leaves short- 
pubescent, and the veins covered with a villous pubescence, not with 
long silky hairs. 
QUERCUS. Oak. 
Q. alba L. White Oak. — Dry soil; common in the southern part 
of the valley and on the Taconics, absent from the plateau. 
Q. bicolor Willd. Swamp White Oak. — Borders of streams and 
swamps; occasional in the southern part of the valley. Great 
Harrington ; Egremont; Sheffield. 
Q. coccinea Muench. Scarlet Oak. — Dry soil, in the southern 
part of the valley; frequent. Grows to a large size only in New 
Marlboro and Sheffield. 
