270 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 



THALICTRUM. Meadow Rtje. 



T. dioicum L. Early Meadow Rue. — Rocky woods 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. Moonseed. — 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. 



