The Sedges of Nebraska 5 



him for the confidence displayed in entrusting this work to me, 

 a neophyte, and hope it has not been wholly misplaced. For the 

 use of Boott's Magnum opus on the genus Car ex, and his en- 

 couraging words as I have read him parts of the Bulletin this 

 winter, I am grateful. 



If this effort shall result in making real progress in the survey 

 of the state, I shall be content. It has been a labor of love. 



Red Cloud, Nebraska, 

 January 31, 1913 



I. Cyperus L. 



1. C. diandrus Torr. Annual; in saturated soil, sand bars, etc., 



widely distributed. Valentine and Kennedy, Cherry Co. ; 

 Atkinson, Holt Co. ; Callaway, Custer Co. ; St. Paul, 

 Howard Co. (Bates) ; Plummer's Ford, Thomas Co.; Pish- 

 elville, Knox Co. (University). I have seen it in many 

 localities where it seemed too common to notice. 



2. C. rivularis Kunth. Annual ; in same habitat and at first 



glance looking like the last, but a good species. More com- 

 mon, apparently. Valentine; Callaway (Bates) ; Plum- 

 mer's Ford ; Nebraska City, Otoe Co. ; Richardson Co. ; 

 Thedford, Thomas Co. ; Bellevue, Douglas Co. ; Franklin 

 Co.; St. Paul; Pishelville; Atkinson (Uni.) ; Minden, Kear- 

 ney Co. (Dr. Hapeman). 



3. C. aristatus Rottb. {inflexus Muhl.) Annual; in same hab- 



itat ; more common than the collections indicate. Red 

 Cloud; Valentine; Callaway; (Bates) ; Minden (Dr. Hape- 

 man) ; Lincoln, Laancaster Co. ; Mullen, Hooker Co. ; 

 Cherry Co. ; Pine Ridge, Sheridan Co. ; northern Holt Co. ; 

 Scott's Bluff Co. ; Thedford ; Franklin, Franklin Co. (Uni.). 



4. C. schweinitzii Torr. Perennial ; in poor, dry, sandy soil. 



Valentine ; Kennedy ; Ewing, Holt Co. ; St. Paul ; Red 

 Cloud, Webster Co. (Bates) ; Minden (Dr. Hapeman) ; 

 Thedford ; Broken Bow, Custer Co. ; Knox Co. ; Franklin ; 

 Arapahoe, Furnas Co. ; Louisville, Cass Co. ; Dismal River, 

 Hooker Co. (Uni.). 



C. bushii Britton should be noticed here as probably oc- 

 curring in Nebraska. Dr. Britton so includes us in his 



149 



