168 FLORA OF WINNESHIEK COUNTY. 
' Bromus secalinus L. Cheat. An introduced weed, quite com- 
mon. Calmar. 
' Bromus racemosus commutatus L. (B. asper L.) Upright 
Chess. An introduced weed, not rare. Decorah (Savage), Cal- 
mar. 
Agropyron tenerum Vasey. (Agropyrum.) Slender Wheat- 
grass. In dry, open places. Locally common. Decorah, Cal- 
mar. ; 
Agropyron occidentale Scrib. (Not in Gray.) Colorado Blue- 
stem. Quite common on dry prairie. Calmar, Ft. Atkinson. 
Agropyron repens Beauv. (Agropyrum.) Couch-grass. A 
common introduced weed. Calmar. 
Agropyron caninum '(L.) R. & 8S. (Agropyrum.) Awned 
Wheat-grass. In rich soil. Introduced(?). Calmar. 
Hordeum jubatum L. Squirrel-tail Grass. Very common in 
pastures, waste places, ete. Calmar, etc. 
Elymus striatus Willd. Slender Lyme-grass. Rather common 
in woods. Decorah, Hesper. : 
Elymus canadensis L. Canada Lyme-grass. Common, on 
shaded banks. Decorah. 
Elymus robustus S. and S. (£. canadensis L., in part.) Robust 
Wild Rye. Not rare, on moist banks. Calmar. 
Asprella hystriz Willd. Bottle-brush Grass. Locally common 
on wooded banks. Ft. Atkinson, Calmar, Decorah, Hesper. 
. Family 2. Cyperace@. Sedges.* 
Cyperus diandrus Torr. Low Cyperus. Marshy places. 
Decorah (Cratty). 
Cyperus schweinitevi Torr.. Schweinitz’s Cypress. In sandy 
soils. Decorah (Goddard). 
Cyperus esculentus L. Yellow Nut-grass. Locally common 
in moist, open places. Hesper, Ft. Atkinson. | 
Cyperus filiculmis Vahl. Slender Cyperus. Frequent on dry 
open ridges, ete. Decorah (Goddard); Hesper. 
Eleocharis ovata (Roth) R. & 8S. Ovoid Spike-rush. In wet 
soil, quite common. Ft. Atkinson. 
Eleocharis palustris (L.) RB. & S. Creeping Spike-rush. 
Swamps and edges of ponds. Decorah (Savage). 
*Most of the specimens here listed were examined by Mr. R. I. Oratty. 
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