100 Trans. Acad. Sci. of St. Louis 



Elymus arkansanus Scribn. & Ball. North Ar- 

 kansas, District Agr. Agent. 



Elymus oust rails Scribn. & Ball. Fayetteville, 

 Washington Co.; 8126 Benton, Saline Co. 



Elymus glabriflorus (Vasey) Scribn. & Ball. 

 Lake Village, Chicot Co. 



Cyperaceae : 



Cyperus compressus L. 14641 McNab, Hempstead 

 Co. 



Cyperus cylindricus (Ell.) Britton. Fulton, Hemp- 

 stead Co. (fide J. M. Greenman). 



Cyperus ferax Rich. 26747 Fulton, Hempstead Co. 



Cyperus Houghtonii Torr. Fayetteville, Washington 

 Co. 



Cyperus hystrhinus Fernald. 14657 McNab, Hemp- 

 stead Co. 



Cyperus lancastriensis Porter. 8124 Benton, Saline 

 Co. 



Cyperus pseudovegetus Steud. 6061, 8026 Fulton, 

 Hempstead Co. 



Cyperus rivularis Kunth. 4565 Eureka Springs, 

 Carroll Co. 



Cyperus speciosus var. ferruginescens (Boeckl.) 

 Britton. Fayetteville, Washington Co. 



Eleocharis Torreyana Boeckl. Lonoke Co.. woods 

 of second bottoms. 



Fimbristylis Baldwiniana Torr. Stuttgart, Ar- 

 kansas Co. (II. R. Rosen). A troublesome weed of 

 rice fields. 



