No. 14.] FLOWERIN'G PLANTS AND FERNS. 297 



UMBELLIFERAE. PARSLEY FAMILY. 



ERYNGIUM L. Eryngo. 



Eryngium planum L. (flat). 



Rare. Fairfield, in sandy waste ground (Eames). Aug. — 

 Sept. Fugitive from Europe. 



Eryngium yuccifolium Michx. (having leaves like Yucca, the 

 Spanish Bayonet). 

 Eryngium aquaticitm of Britton's Manual. 

 Rattlesnake Master. Button Snakeroot. 



• Rare. Bridgeport, in a sandy field (Eames). July. In- 

 troduced from the South, or possibly native. 

 The rootstock is medicinal. 



SANICULA L. Sanicle. Black Snakeroot. 



Sanicula marilandica L. 



Frequent. Rich woods and more open places in either 

 moist or dry ground. June — July. 



The roots of this and the other species of the genus are 

 used medicinally and their fibres in veterinary practice. 



Sanicula gregaria Bicknell (herding together). 



Rich moist or wet woods. Rare in most districts: New 

 Britain (Bissell), Southington (Andrews, Bissell), Norfolk 

 (J. H. Barbour), Seymour (Harger). Occasional in the 

 southwestern part of the state (Eames). June — July. 



Sanicula canadensis L. 



Sanicula marilandica L., var. canadensis Torr. 



Occasional or frequent. Dry rocky woods. June — July. 



Sanicula trifoliata Bicknell (three-leaved). 



Rare or local. Woods and fence-rows : New Britain and 

 Plainville (Bissell), Southington (Andrews, Bissell), Oxford 

 (Harger) . June — July. 



HYDROCOTYLE L. Water Pennywort. 



Hydrocotyle umbellata L. (umbellate). 



Rare or local. Muddy shores and in shallow water: 

 Thompson (R. W. Woodward & Weatherby), Groton, East 



