812 Wisconsin Academy of Sciences, Arts , and Letters . 
111. Agropyron repens, Beauv. Couch Grass; Quitch Grass. 
Common; roadsides, railroad tracks and meadows—a 
troublesome weed. 
112. Agropyron occidentale, Scribner. 
Bare; becoming established along roadsides. An 
emigrant from the Great Plains and one of the most 
important of the western grasses. Not in Swezey’s list. 
113. Hordeum jubatum, L. Squirrel-tail Grass. 
' Gommon; along railroad tracks, roadsides and in 
meadows. A weedy grass. 
114. Elymus striatus, Willd. The species of this genus are 
commonly called Wild Bye. 
Common; wooded hillsides. 
115. Elymus Viginicus, L. 
Common; moist soil along streams. 
116. Elymus Canadensis, L. 
Common; in a variety of soils. 
117. Elymus Canadensis, L., var. glaucifolius, Gray. 
Occasional; with the preceding. 
118. Elymus robustus, Scribner. 
Bare; roadsides and along railroad tracks. Ob¬ 
served only at Burlington, Bacine Co. 
119. Asprella Hystrix, Willd. Bottle-brush Grass. 
Common; woods. 
CypejracExU. Sedge Family. 
120. Cyperus diandrus var. castaneus, Torr. 
Occasional; low grounds and sand flats. A handsome 
species. 
121. Cyperus esculentus, L. Yellow Nut-Grass. 
Occasional; roadsides and moist, sandy ground. 
122. Cyperus erythrorhizos, Muhl. 
Extinct; reported by Dr. Davis for Swezey’s list as 
occurring at Bacine, and specimen in his herbarium so 
labeled. Dr. Davis says that the plant gradually de¬ 
creased in numbers and finally disappeared altogether. 
The writer has nowhere seen it in the counties. 
