176 
Bulletin Wisconsin Natural History Sofiety. [Vol. 5. Xo. 4. 
CYPERACE.?:. 
Cyperus flavescens L. Yellow Cyperus. 
Town of Greenfield. 
C. diandrus Torr. Low Cyperus. 
Common in south and west part of county. 
C. esculentus L. Yellow Xut-grass. 
Milwaukee Eiver, north of city limits. 
C. Engelmanni Steud. Engelmann's Cyperus. 
Milwaukee Eiver, north of city limits. 
C. strigosus L. Straw-colored Cyperus. 
Xear Xew Coeln. 
Dulichium arundinaceum (L.) Britton. Dulichium. 
Common throughout county. 
Eleocharis palustris (L.) Jl. & S. Creeping Spike-rush. 
Common throughout county. 
E. palustrus var. glaucescens (Willd.) Gray. 
^Milwaukee Eiver, north of city limits. 
E. acicularis (L.) E. & S. Needle Spike-rush. 
National Ave., just west of city limits. 
E. tenuis (Willd.) Schultes. Slender Spike-rush. 
Town of Lake. 
E. acuminata (Muhl.) Xees. Flat-stemmed Spike-rush. 
Eeported by Dr. L. Sherman. 
Scirpus americanus Pers. Three-square. Chair-maker's rush. 
Locally common. 
S. validus Vahl. *S^. lacustris L. Great Bulrush. 
Wauwatosa. 
S. atrovirens Muhl. Dark-green Bulrush. 
Common everj-where. 
S. cyperinus (L.) Kunth. Wool-grass. 
In southern part of county. 
S. Eriophorum fL.) Michx. S. cyprinus Eriophorum (^Uchx.) Britton. 
Dark-green Bulrush. Common everywhere. 
Eriophorum polystachyon L. Tall Cotton-grass. 
In southern and western parts of county. 
