272 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
PAPAVER. Poi>i'V. 
P. RiioEAS L. Field or Corn Poppy. — Occasionally persisting 
about gardens or adventive on dumps. 
P. SOMNIFERUM L. CoMMON PopPY. — Occasionally persisting 
about gardens or adventive on dumps. 
SANGUINARIA. Bloodroot. 
S. canadensis L. Bloodroot. — Rich open woods and thickets, 
often at the foot of ledges; common in the valley. Not noted on the 
plateau above 1000 feet. Altitude 1200 feet, West Stockbridge. 
FUMARIACEAE. FUMITORY FAMILY. 
ADLUMIA. Climbing Fumitory. 
A. fungosa (Ait.) Greene. Climbing Fumitory. — On rocks in 
rich open woods; occasional in the valley. Williamstown (Churchill) ; 
Stockbridge; West Stockbridge; New Marlboro; Mt. Washington. 
CORYDALIS. CoRYDALis. 
{Capnoides 111. Fl. ed. 2.) 
C. sempervirens (L.) Pers. Corydalis. — Ledges, rocky summits 
and clearings; common. Not noted on the plateau. 
DICENTRA. 
{Bicuculla 111. Fl. ed. 2.) 
D. canadensis (Goldie) Walp. Squirrel Corn. — Rich woods; 
frequent. 
D. Cucullaria (L.) Bernh. Dutchman's Breeches. — Rich wood- 
ed hillsides; frequent in the valley. Altitude 2700 feet, Greylock. 
FUMARIA. Fumitory. 
F. officinalis L. Fumitory. — Occasionally persisting in gardens 
and on rubbish heaps. Pittsfield; Stockbridge; Sandisfield. 
CRUCIFERAE. MUSTARD FAMILY. 
ARABIS. Rock Cress. 
A. canadensis L. Sickle-pod. — Dry wooded hills and banks; 
occasional in the valley. North Adams (Fernald and Long) ; Stock- 
