HOFFMANN: FLORA OF BERKSHIRE COUNTY. 227 



Rich woods; occasional. Savoys Pittsfield; Stockbridge; Shef- 

 field (Walters). 



C. lenticularis Miehx. — Gravelly borders of ponds and rivers; 

 occasional. Savoy; Florida. 



Perigynia ovate-elliptic, slightly convex both sides, longer than the 

 narrow oblong, obtuse scales. 



var. Blakei Dewey. — Vid. Wood, Class Book, p. 755 (1861). 

 Sandy shore of Big Pond, Otis. 



Perigynia nearly elliptical, scales obtuse and always shorter than 

 the perigynia. 



C. leporinaL. — Pastures; occasional. Sandisfield; New Marlboro. 

 C. leptalea Wahlenb. — Wet shaded ground; common. 

 C. leptonervia Fernald. — (C .■ laxiflora, var. leptonervia Man. ed. 

 7; C. anceps 111. Fl. ed. 2 in part. Vid. Rhodora, 16: 214, 1914.) 

 Cold woods and swamps; common. 



C. liinosa L. — Open peat bogs; local. Stockbridge; Sheffield. 

 C. longirostris Torr. — (C. Sprengelii 111. Fl. ed. 2.) 

 Alluvial thickets ; occasional in the valley. Lenox (Hill, Schneider 

 and Schweinf lu-th) ; Stockbridge; Sheffield. On shaded rocks in 

 New Marlboro. 



C. lupulina Muhl. — Mudholes, borders of ponds and marshes; 

 frequent. 



var. pedunculata Dewey. — Mudholes and marshes; occasional 

 in the southern part of the valley. Lenox; Great Barrington; New 

 Marlboro. 



C. lurida Wahlenb. — Low open ground; common, 

 var. gracilis (Boott) Bailey. — (C. Baileyi 111. Fl. ed. 2.) 

 Cheshire, wet slide above Kitchen Brook (Churchill); New Marl- 

 boro, Thousand Acre Swamp. 



C. mirabilis Dewey.' — (C norvialis 111. Fl. ed. 2.) 

 Roadside thickets, clearings, copses; common, 

 var. perlonga Fernald. — Borders of thickets ; occasional on the 

 plateau. Becket; Sandisfield. 



C. Muhlenbergii Schkuhr. — Dry open soil; rare. Stockbridge 

 (Dewey); Sheffield. 



C. novae-angliae Schwein. — Rocky woods and banks; common 

 on the plateau; rare in the valley. Reaches the bank of the Housa- 

 tonic River in Lenox (altitude 1000 feet). Rich soil on Berry Mt., 

 Hancock. 



