268 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 



On rocks; occasional in the valley. Williamstown; West Stock- 

 bridge; Great Barrington; New Marlboro (Walters); Sheffield; Mt. 

 Washington. Chiefly on limestone, but also on schist at Bash Bish 

 Falls, Mt. Washington. 



C. virginiana L. Clematis. — Thickets; common. 



COPTIS. Gold Thread. 



C. trifolia (L.) Salisb, Gold Thread. — Rich moist woods and 

 knolls in swamps; common. 



HEPATICA. Hepatica; Liverleaf. 



H. acutiloba DC. Hepatica; Liverleaf. — Rich woods; fre- 

 quent in the valley. Occasionally growing with H. triloba. 



forma albiflora, f. nov. — Sepalis albis. Flowers white. Type in 

 N. E. B. C. collection from Williamstown, Mass. Collected May 

 17, 1920 (R. Hoffmann.) 



The white form is commoner than the blue. 



forma rosea, f. nov. — Sepalis roseis. Flowers light pink. Type 

 in N. E. B. C. collection from Williamstown, Mass. Collected May 

 19, 1920 (R. Hoffmann.) 



H. americana (DC.) Ker. Hepatica; Liverleaf. — (H. triloba 

 Man. ed. 7; //. Hepatica 111. Fl. ed. 2. Vid. Rhodora, 19: 45, 

 1917.) 



Woods; common. 



forma Candida Fernald. — The white-flowered form, frequent, but 

 not so common as the type. 



forma rhodantha Fernald. — The pink-flowered form. Frequent 

 with the type. 



A form with five-lobed leaves, and one that has lobes nearly as 

 acute as H. acutiloba, Sandisfield. 



RANUNCULUS. Crowfoot; Buttercup. 



R. abortivus L. — Clearings, ledges and rich woods; common, 

 var. eucyclus Fernald. — Rich woods; frequent. Altitude 1500 

 feet, Florida. 



R. ACRis L. Buttercup. — Fields and roadsides ; common. 



