6 
The leaves were spotted and slightly pubescent; styles stigmatic 
along inner margins ; low, some plants creeping, and rooting at 
the nodes. We do not believe that the species is indigenous at 
this point. 
27. R. pennsylvanicus, L. f. Bristly Crowfoot. 
Wet places and open woods ; infrequent, but distributed throughout 
the district. June 15th — July 25th. (B.) 
28. R. bulbosus, L. Buttercup. Tall Buttercup. Bulbous Crowfoot . 
Fields, probably introduced in grass seed; rare. June — July. (B. P„) 
Kenwood. Evanston. South Evanston. Niles, Miss Belle Ailing. 
Pullman, Brennan. 
? 29. R. acris, L. Tall Crowfoot. Buttercup. 
Fields; not common. (B.) 
Evanston, 1885. Kensington, 1879, Brennan. Englewood, 1880, 
Hill. 
2 to 5 feet in height. 
ISOPYRUM, L. 
30. ] 
I 
Evanston. Lake View. Jefferson. South Chicago. Hyde Park, 
Brennan. Maywood, Herman Jaeger. Banks of north branch 
Chicago river, from west of Ravenswood to North Evanston, Mason 
Bross. 
Easily mistaken for Anemonella thalictroides, Michx 
CALTHA, L. 
^ 31. C. palustris, L. Marsh Marigold. Cowslip. Gools. 
Swamps; common, often abundant. April — May. 
In wet but not boggy localities the flowers are often larger than 
ordinary specimens; the average measurement of several flowers 
being from 1^ to 2 inches. 
COPTIS. Salisb. 
32. C. trifolia, Salisb. Coptis. Goldthread. 
Wet and boggy, shaded places, or rich woods; very rare. May. 
(B. P.) 
Berry Lake, Ind., 1887. Pine Station, Xnd., 1887 — 88. 
ACIUILEGIA, Tourn. 
33. A. canadensis, L. Wild Columbine. Honeysuckle. 
Woods and roadsides; not common. May — June. 
North Evanston and southward. Usually more frequent along the 
tracks of railroads from the east. 
Two specimens nearly white were found near Lakeside. 
