50 MICHIGAN ACADEMY OF SCIENCE. 



340. A. spicatum (Pursh.) Scribn. & Small. Western Wheat-grass. Introduced 

 into Bay City, G. M. Bradford; Keweenaw Co., Detroit, O. A. Farwell. 



341. A. tenerum Vasey. Port Huron; along railroads; an advent from the west, 

 C. K. Dodge. 



342. A. violaceum (Hornem.) Vasey. Purplish Wheat-grass. Keweenaw Penin- 

 sula, Farwell; Lake Superior, Porter. 



SECALE L. 



*343. S. cereale L. Rye. Escaped from cultivation. 



HORDEUM L. 



*344. H. jubatum L. Squirrel-tail Grass. Sands. N. shore of Lake Superior, 

 Agassiz; Sault de Ste. Marie, R. Bell; Bay City. Infrequent. Th. 

 345. H. nodosum L. Detroit, O. A. Farwell. Occasional. 



ELYMUS L. 



*346. E. Canadensis L. Nodding Wild Rye. E. Ganadensis glaucifolius A. Gray. 

 River banks. Common. Th. 



347. E. glaucus Buckl. Smooth Wild Rye. S. W., H. S. Pepoon. Britton and 

 Brown. E. SiMricus Am&ricanus S. Wats. & Coul. Marquette, Porter in Gray's 

 Manual; Keweenaw Co., O. A. Farwell. 



348. E. mollis Trin. Smooth Wild Rye. Shores of the Great Lakes, Gray's 

 Manual; north shore of Lake Superior, Agassiz. 



*349. E. robustus Scribn. & Sm. Muskegon, C. D. McLouth; Lansing, W. J. B. 



*351. E. striatus Willd. Slender Wild Rye. E. striatus villosus A. Gray. S. 

 Mich., Wright Cat.; Flint; Hubbardston; Manistee, F. P. Daniels; northward to 

 L. Superior. Th. 



*352. E. Virginicus L. Virginia Wild Rye. River banks. Common. Th. 



*353. E. Virginicus glaucus Beal. Grand River Valley, with the species. W. J. B. 



HYSTRIX Moench. ASPRELLA Willd. 



*354. Hystrix Hystrix (L.) Millsp. Bottle-Brush grass. Th. Asprella Hystrix 

 Willd. Moist woods. A variety of this grass is found in one locality near Hub- 

 bardston with smooth and very glaucous culms, leaves rough, hairy. 



CYPERACE^E J. St. Hil. Sedge Family. 



CYPERUS L. 



*356. C. diandrus Torr. Low Cyperus. Low grounds. Common. C. & S. 

 358. C. Engelmanni Steud. Englemann's Cyperus. Fruitport, E. J. Hill; shore 

 of Park Lake, Clinton Co., C. F. Wheeler; St. Clair Co., C. K. Dodge. Rare. 



*359. C. erythororhizos Muhl. Red-rooted Cyperus. Macomb Co., D. Cooley; 

 Bay City, G. M. Bradford. Infrequent. 



*360. C. esculentus L. Yellow Nutt-grass. A troublesome weed on low grounds, 

 spreading rapidly by means of its nut-like tubers. Hard to eradicate. Muir; 

 Flint; Grand Rapids; Detroit; north to Oscoda. Frequent. L. P. 

 361. C. esculentus angustispicatus Britton. Detroit, A. O. Farwell. 



*362. C. filiculmis Vahl. Slender Cyperus. Sterile soil. Common. C. & S. 



363. C. flavescens L. Yellow Cyperus. Grand Rapids, Coleman Cat.; S. Mich., 

 Wright Cat. Rare. S. 



364. C. Houghtonii Torr. Houghton's Cyperus. Hilltops near Indian River, 

 Wheeler; Long Lake, Cheboygan Co., B. & K. St. Clair., C. K. Dodge. 



*3C5. C. inflexus Muhl. Awned Cyperus. G. aristatus Boeckl. Grand Rapids, 

 Coleman; Ionia; banks of Cedar River, Agricultural College. Not common. 



366. C. refractus Engelm. Detroit, O. A. Farwell. 



*367. C. rivularis Kunth. Shining Cyperus. G. diandrus castaneus Torr. Frequent. 

 368. C. Schweinitzii Torr. Schweinitz's Cyperus. Lake Michigan shore at 

 South Haven, L. H. Bailey; Kalamazoo, Tuthill; Manistee, F. P. Daniels, S. West, 

 H. S. Pepoon. 



