BEAL ON MICHIGAN FLORA. 45 



STIPA L. Feather-grass. 



223. S. avenacea L. Black Oat-grass. S. W., Wright Cat; South Haven, Bailey; 



Baldwin; Dundee; Cass Co.; Point Aux Pins, Macoun Can. Cat. Infrequent. Th. 



*224. S. spartea Trin. Porcupine-grass. Dry plains. S. Mich., Wright Cat; 



Macomb Co.; shore of Woodward Lake, Ionia Co.; hills along Grand River near 



Ionia; Ann Arbor, Tuscola Co., C. A. Davis. 



ORYZOPSIS Michx. 



*225. 0. asperifolia Michx. White-grained Mountain Rice. Hillsides. Common. 

 226. 0. juncea (Michx.) B. S. P. Slender Mountain Rice. 0. Canadensis Torr. 

 Sterile soil. S. E., Wright Cat.; Hubbardston; Montcalm Co., C. A. Davis; Macomb 

 Co.; common in Clare Co.; frequent from Ionia northward. Th. 



*227. 0. melanocarpa Muhl. Black-fruited Mountain Rice. Woods. S. Mich., 

 Wright Cat; S. Haven; Macomb Co.; Flint; Hubbardston. Infrequent. C. & S. 



MILIUM L. 

 *228. M. effusum L. Tall Millet-grass. Woods. Frequent. Th. 



MUHLENBERGIA Schreber. 



*229. M. diffusa Willd. Nimble Will. Open woods, becoming frequent around 

 dwellings. S. Mich., Wright Cat.; So. Haven, Bailey; Flint; Hubbardston; C. F. 

 Wheeler; Ann Arbor, C. A. Davis. C. & S. 



*230. M. Mexicana (L.) Trin. Meadow Muhlenbergia. Low grounds. Variable. 

 Frequent. Th. 



*231. M. racemosa (Michx.) B. S. P. Marsh Muhlenbergia. M. glomerata Trin. 

 Marshes. Infrequent. Th. 



*232. M. sylvatica Torr. Wood Muhlenbergia. Hubbardston; Flint; Lake 

 Superior, Agassiz. Frequent. Th. 



*233. M. tenuiflora (Willd.) B. S. P. Slender Muhlenbergia. M. Willdenovii Trin. 

 Flint; Macomb Co.; S. Mich., Wright Cat; Muskegon, C. F. Wheeler. Rare. C. S. 



BRACHYELYTRUM Beauv. 

 *234. B. erectum (Schreb.) Beauv. B. aristatum Beauv. Woods. Frequent 



PHLEUM L. 



235. P. alpinum L. Mountain Timothy. L. Superior, Whitney Cat.; Keweenaw 

 Co., O. A. Farwell. 



*236. P. pratense L. Timothy. Herd's-Grass. Meadows everywhere. 



ALOPECURUS L. 



*237. A. geniculatus L. Marsh Foxtail. A. geniculatus aristulatus Torr. S. 

 Mich., Wright Cat.; Macomb Co.; Bay Co., G. M. Bradford. Th. 



*238. A. pratensis L. Meadow Foxtail. Cultivated from Europe and escaped. 



SPOROBOLUS R. Br. 



239. S. brevifolius (Nutt.) Nash. Keweenaw Co., 0. A. Farwell. 



240. S. cryptandrus (Torr.) A. Gray. Sand Dropseed. S. Mich., Winch. Cat; 

 Point Edward, River St. Glair, Macoun; Bay City, W. J. B.; shore of Gull Lake, 

 Augusta, Kalamazoo Co. Infrequent. C. & S. 



*241. S. neglectus Nash. Small Rush-grass. Frequent. Lansing, S'augatuck, 

 C. F. Wheeler; Detroit, O. A. Farwell. 



242. S. serotinus (Torr.) A. Gray. Late-flowered Dropseed. Sandy wet places, 

 Gray's Manual; Keweenaw Co., O. A. Farwell. Rare. 



*243. S. vaginaeflorus (Torr.) Wood.. Sheathed Rush-grass. Flint; Detroit, Dr. 

 A. B. Lyons; Ann Arbor, C. A. Davis. Rare. C. & S. 



CINNA L. 



*244. C. arundinacea L. Low grounds. Frequent. 



*245. C. latifolia (Trev.) Griseb. Slender Wood Reed-grass. C. pendula Trin. 

 Wet woods throughout 



