32 
252. L. palustris, L. Marsh Vetchling. 
Moist places; frequent or common. June — July 15th. 
258. L. palustris, L., var. myrtifolius, Gray. 
Moist places; infrequent. May 20th — July. 
South Chicago. Hyde Park. Sheffield, Pine Station and Ham- 
mond, Ind. Englewood, Hill. 
APIOS, Boerhaave. 
254. A. tuberosa, Moench. Ground Nut. Dakota Potato. 
North and west, infrequent or rare : wet grounds of Calumet Region, 
and banks of streams, south ; infrequent. August. 
PHASEOLUS, Tourn. 
255. P. perennis, Walt. Wild Bean. Kidney Bean. 
Near the lake shore in copses; rare or infrequent. August. 
Colehour, Ind., 1885. Sheffield, Ind., 1886. Pme Station, Ind., 1887. 
Near Chicago, University of Chicago Herb. (B.) 
STROPHOSTYLES, Ell. 
^ 256. S. angulosa, Ell. Wild Bean. 
Phaseolus diversifolius , Pers., and helvolus, L. 
Lake shore, both north and south ; frequent. August. 
257. S. peduncularis, Ell. 
Phaseolus helvolus , of Manual, 5th Ed. , not of L. 
Lake shore. South Chicago and south, Babcock. 
258. s. pauciflorus, Watson. 
Phaseolus pauciflorus, Benth. 
Calumet river, near Miller’s, Ind. ; rare, August, 1885-87. (B.) 
AMPHICARPiEA, Ell. 
259. A. monoica, Nutt. Hog Pea-nut. 
Rich and open woods ; frequent. August. 
Flowers occasionally white. 
CASSIA, Tourn. 
260. c. chamaecrista, L. Partridge Pea. 
Sandy soil; frequent. August. 
Chiefly in the southern portions of our district. 
GYMNOCLADTJS, Lam. 
261. G. canadensis, Lam. Kentucky Coffee-tree. 
June. 
Two specimens have been noted in the woods at Niles. Desplaines 
river, north of Riverside, Babcock. South Park, July, 1886. 
