HOFFMANN: FLORA OF BERKSHIRE COUNTY. 255 
Q. ilicifolia Wang. Bear Oak; Black Scrub Oak. — Sandy soil 
or rocky summits; common in the Sheffield sand-plain and on the 
summits of the southern Taconics. 
Q. macrocarpa Michx. Bur Oak; Mossy-cup Oak. — Swamps, 
open bottom-land and hillsides; frequent in the valley. 
Q. Muhlenbergii Engelm. Yellow Oak; Chestnut Oak. — 
On limestone ridges in the extreme southern part of the valley. One 
tree in Great Barrington (Sargent) ; frequent in Sheffield. 
Q. prinoides Willd. Scrub Chestnut Oak; Chinquapin Oak. — 
Common on the sand-plain in southern New Marlboro and Sheffield. 
Q. Prinus L. Chestnut Oak. — Rocky hillsides; common in the 
southern part of the valley, particularly west of the Housatonic River, 
occasional to the eastward (Monterey). Absent from the plateau. 
Q. rubra L. Red Oak. — Woods; common throughout. The 
only oak found on the plateau. 
Q. velutina Lam. Black Oak. — Rocky woods and dry soil; 
frequent in the southern part of the valley. 
URTICACEAE. NETTLE FAMILY. 
BOEHMERIA. False Nettle. 
B. cylindrica (L.) Sw. False Nettle. — Shaded swamps, river- 
banks and low ground; frequent. 
CELTIS. Hackberry. 
C. occidentalis L. Hackberry; Sugarberry. — Hackberries 
are occasional along tlic Housatonic River in Stockbridge, Great 
Barrington and Sheffield, growing either in meadows on the edge of 
the river or in Sheffield on ledges above the river. Tlie trees are for 
the most part small, but in Stockbridge there is one with a girth of 
nine and a half feet. Specimens from the three towns have been sub- 
mitted to Dr. Reluler, who has deterniined sonu^ from Stockbridge 
and Sheffield as typical, and writes of tw'o specimens from Stockbridge, 
as follows: 
" The specimen collected Aug. 20, 1920, 1 refer to C. occidental i.s', 
var. canina (Raf.) Sarg. (in Bot. Gaz. 67: 217, 1910), though the 
under side of the leaves is as pubescent as in var. crn.s-sifoUd, but the 
leaves are not scabrate above. The speciincn ((illcctcd on Aug. 12, 
