150 TWELFTH ANNUAL KEPORT. 



CYPERACE^. Sedge Family. 



CYPERUS, L. Galingale. 



C. diandrus, Torr., var. castaneus, Torr. (C. rivularis, Kunth.) Galin- 

 gale. 

 Common tlirougli the south half of the state ; extending north at least to the upper 

 Mississippi river, Garrison. 



C erythrorrliizos, Muhl. Galingale. 



Lapham. [In Michigan, Wisconsin and Nebraska.] Infrequent. South. 



C. aristatiis, Rottb. (C. inflexus, Muhl.) Galingale. 



St. Croix river, Parry; Minneapolis, Kassube, Simmons; Blue Earth county, Leiberg. 

 [Manitoba, Mncoun, (lake Winnipeg) TVatson; Emmet county, Iowa (rare), Crattj/.] 

 Throughout the state. 



C. esculentus, L. (C. phymatode?, Muhl.) Galingale. Nut-Grass. 



Lapham. Blue Earth county, Leiberg; Cannon River Falls, Blahe, Sandberg; 

 Minneapolis, Simmo7is. South. 



C strig'osus, L. Galingale. 



Common throughout the state, excepting perhaps northeastward. (Specimens 

 apparently referable to this species, collected by Mr. Simmons near lake Calhoun, in 

 Minneapolis, have only 8- to 12-flowered spikes, scarcely a half inch long, arranged in 

 densely crowded splcate clusters, the lower portions of which are sometimes compound.) 



C. Michauxianus, Schultes. Galignale. 



Lapham. Blue Earth county. Leiberg. Probably frequent, or common, through 

 the south part of the state. 



C Scliweiiiitzii, Torr. Galingale. 



Throughout the south half of the state and in the Red river valley. Sandy ridges, 

 St. Croix river. Parry; Minneapolis (common), Kassube, Upham; Blue Earth county, 

 Leiberg. [Emmet county, Iowa (very rare) Cratty; Devil's lake, Dakota, Geyer.] 



C . ftliciilinis, Vahl. Galingale. 



Common, or frequent, throughout the state, excepting perhaps northeastward. 

 Upper Mississippi river, Houghton; Minnesota river, Parry; Minneapolis, Kassube, 

 Simmons, Upham; Blue Earth county, Leiberg. [Manitoba, Macoun.'] 



DUJLICHIUM, Richard. Dulichium. 



D. spatliaceum, Pers. Dulichium. 

 Common, or frequent, throughout the state. 



HEMICARPHA, Nees. Hemicakpha. 



H. .subsquarrosa, Nees. Hemicarpha. 



Lapham. Blue Earth couoty, Leiberg; Minneapolis, plentiful beside railroad near 

 the University, Artliur, and near lake Calhoun, Simmoiis; probably frequent through 

 the soittli half of the state. 



ELEOCHARIS , R. Br. Spike-Rush. 



E. obtiisa, Schultes. Spike-Rush. 



Common through the south half of the state and in the Red river valley. 

 E. palustris, R. Br. Spike-Rush. 

 Common throughout the state . 



