126 
1082. C. aristatus, Bottb. 
C. inflexus, Muhl. 
In sandy soil near the lake shore, both north and south; frequent. 
August — September. 
1083. C. sehweinitzii, Torr. 
In sandy soil near the lake shore, south of Chicago; infrequent. 
July — September 25th. 
Miller’s, Ind. ; abundant, Babcock ! Evanston, Johnson. 
-f- 1084. C. filieulmis, Vahl. 
Dry fields and banks ; frequent or common southward. August — 
September. 
1085. C. erythrorhizos, Muhl. 
Along I. C. B. B., between Oakland and Hyde Park; common, Bab- 
cock. 
Generally infrequent. 
1086. C. esculentus, L. Nut-Grass. 
C. phymatodes , Muhl. 
Banks of a slough west of Berry Lake, Ind.; rare. August 25th, 
1885, and September 5th, 1887. (B.) 
1087. C. strigosus, L. 
Damp fields and banks; the most common form of the genus. 
August — October 15th. (B.) 
1088. C. speciosus, Vahl. 
C . michauxianus, in Manual, 5th Ed. 
Low sandy soil from Hyde Park southward; infrequent or rare. 
August — October. 
1089. C. engelmanni, Steud. 
Low grounds at Forsyth, Indiana, September, 1879, Hill. (B.) 
1090. c. ovularis, Torr. 
Sandy fields ; rare. September, 1889, (B.) 
East Chicago, Ind.; plants 8 inches to 2 feet high, spike 2 to 8 flow- 
ered, Hill. 
DT7LICHIUM, Pers. 
1091. D. spathaceum, Pers. Dulichium. 
Borders of ponds and sloughs in the Calumet Begion, south to Miller’s, 
Ind.; common, elsewhere infrequent. July 25th — September. 
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