322 Karl M. Wiegand and Arthur J. Eames 



Newfield Glen; Enfield Glen; bottom lands, Six Mile Creek; Cascadilla woods; 

 McGowan Woods ; bottom-land woods, Taughannock Gorge. 



N. B. and N. S. to Minn., southw. to Ga. and Ark. ; rare or absent on the Coastal 

 Plain. 



Often found in large colonies, in this respect apparently unlike other species of 

 Sanicula. 



3. S. canadensis L. 



Woodlands and thickets, in sandy or gravelly, more or less acid, soils; infrequent, 

 Fr. July 20-Aug. 



Enfield Glen ; Six Mile Creek ; bottom lands, Taughannock Gorge ; small 

 ravine e. side of Salmon Creek, opposite Lansingville ; Paine Creek ; Big Gully ; n, 

 of Waterloo ; sandy woods, e. shore of Vandemark Pond. 



N. H. to Minn, and S. Dak, southw. to Fla., Nebr., and Tex.; frequent on the 

 Coastal Plain. 



4. S. trifoliata Bickn. 



Woodlands, in rich loamy soils ; infrequent. Fr. July 20-Aug. 



Newfield Glen ; Enfield Glen ; Six Mile Creek ; Freeville, e. of George Junior 

 Republic; bottom lands, Taughannock Gorge; Paine Creek; e. part of Savannah 

 Township. 



Cent. Me., and from w. N. E. to Ont. and Minn., southw. to W. Va. and Ind. ; 

 rare or absent on the Coastal Plain. 



2. Hydrocotyle (Tourn.) L. 



a. Leaves cordate; umbels sessile, axillary. 1. H. atnericana 



a. Leaves peltate; umbels long-peduncled. [H. umbellata] 



1. H. americana L. Water Pennywort. 



Springy grassy half-shaded places on the lighter soils and on wet ledges, showing 

 little relation to lime; common. Fr. July 15-Aug. 



N. S. to Minn., southw. to N. J., Pa., and in the mts. to N. C, including the 

 northern part of the Coastal Plain. 



[H. UMBELLATA L. 



Collected in 1901 in Eddy Pond, Cascadilla Glen, but since exterminated by ex- 

 tensive grading. Said to have been introduced there by early botanists.] 



3. Chaerophyllum (Tourn.) L. 

 1. C. procumbens (L.) Crantz. Wild Chervil. 



Thickets on rich bottom-land soils; rare. Fr. May 15-June 15. 



Buttermilk Glen (Dr. Jordan in C. U. Herb.) ; Negundo Woods, 1874 (£>.) ; 

 by creek and by railroad near Esty's Tannery, that is, between railroad and Hum- 

 boldt St. near Ithaca (D.) ; not seen in recent years. 



N. Y. to Mich., southw. to N. C, Iowa, Ark., and Miss., invading the western 

 border of the Coastal Plain in N. J. A plant of the rich soils of the Ohio and 

 Mississippi Basins. 



4. Osmorhiza Raf. 



a. Stylopodium and style 0.7-1 mm. long; stems and leaves more or less villous or 



hirsute. 1. O. Clqytoni 



a. Stylopodium and style 2-4 mm. long; leaves somewhat less coarsely and ir- 

 regularly toothed. 

 b. Stems glabrous or nearly so ; leaves nearly glabrous. 2. O. longistylis 

 b. Stems hairy; leaves hairy. 2a. O. longistylis, 



var. brachycoma 



