470 MINNESOTA BOTANICAL STUDIES 



Cyperus Engclmanni Steud. 



Reported by Holzinger and E. J. Hill; no specimens. 



Cyperus altcrniflorus Schw. 



Reported in Lapham's Catalogue but docs not occur. 



Elcocharis intermedia (Muhl.) Schultes. 



No specimens can be referred to this species without doubt, and the 

 report seems to be based on incorrect determinations. 



Scirpus nanus Spreng. 



Report based on incorrect determinations. 



Scripus hudsonianiis (Michx.) Fernald. 



Reported by Upham and others ; no specimens. 



Scirpus sylvaticus L. 



Does not occur ; report by Sheldon based on specimens of S. 

 ruhrotinctus Fernald. 



Scirpus paUidus (Britton) Fernald. 



Reported, but specimens in the University Herbarium are not suffi- 

 ciently distinct from S. atroz'ireus Muhl. to be separated from the 

 latter species. 



Scirpus polyphyllus Vahl. 



Reported by Upham from Isanti County ; report based on incorrect 

 determination of S. atroznrens Muhl. 



Scirpus lineatus Michx. 



Reported in Upham's Catalogue ; no specimens. 



Eriophorum tenellum Nutt. 



Reported in Upham's Catalogue ; report based on specimens of E. 



gracile Roth. ; does not occur. 

 Cladium mariscoides (Muhl.) Torr. 



No specimens ; probably does not occur. 



Carex foenea Willd. 



All the specimens in the University herbarium labelled C. foenea are 

 C. aenea Fernald. 



Carex cxilis, Dewey. 



Reported by Sheldon in Minnesota Botanical Studies; the specimens 

 in the herbarium so labelled are incorrectly determined ; probably 

 does not occur, 



Carex conjuncta Boot. 



Reported in Upham's Catalogue ; no specimens. 



Carex stenophylla Wahlenb. 



Implied in Gray's Manual to occur ; no specimens. 



Carex hicolor All. 



Reported from north shore of Lake Superior; no specimens. 



Carex Davisii Schwein. and Torr. 



Reported in Upham's Catalogue; no specimens; probably does not 

 occur. 



