270 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
THALICTRUM. Meadow Rue. 
T. dioicum L. Early Meadow Rue. — Rocky wood.s and clear- 
ings; common. 
T. polygamum Muhl. Meadow Rue. — Wet meadows, swamps, 
borders of streams, ill-drained hillsides; common. Grows nearly to 
the summit of Greylock, 3400 feet. 
var. hebecarpum Fernald. — Low grounds; occasional. Becket; 
Stockbridge. 
T. revolutum DC. — Roadside in low ground, Monterey; Sheffield 
(Churchill). 
A single plant in each locality, the Monterey plant staminate, the 
Sheffield plant pistillate. 
MAGNOLIACEAE. MAGNOLIA FAMILY. 
LIRIODENDRON. Tulip Tree. 
L. Tulipifera L. Tulip Tree; Whitewood. — Along streams 
and in swampy woods; locally frequent in the southern part of the 
valley. Tall trees border the Housatonic River between Glendale 
and Housatonic. A tree at Chesterwood, Glendale, 100 feet tall. 
The most northern station noted is a swamp in Lenox. 
menispermaceae. moonseed family. 
MENISPERMUM. Moonseed. 
M. canadense L. ALjonseed. — Alluvial thickets and rich upland 
woods; frequent in Sheffield, occasional as far north as Stockbridge. 
berberidaceae. barberry family. 
BERBERIS. Barberry. 
B. Thunbergii DC. — Becoming established in the southern part 
of the valley, occurring in pastures and swamps far from habitations. 
Undoubtedly carried by birds. 
B. vulgaris L. Common Barberry. — Well established in one or 
two towns in the southern part of the valley. Stockbridge; Egre- 
mont; Sheffield. Nowhere so common as in eastern Massachusetts. 
The purple-leaved form occurs spontaneously in Stockbridge. 
