44 MICHIGAN ACADEMY OF SCIENCE. 



1 carpon (Ell.) Beal. Jackson, S. H. Camp; Detroit, O. A. Farwell; St. Glair Co., 

 J. W. Stacey; Bay Co., G. M. Bradford. 



*207. P. virgatum L. Tall Smooth Panicum. S. Mich., Wright Cat.; Ionia, Flint; 

 Sturgis, F. P. Daniels. A tall coarse grass along rivers. Infrequent. Th. 



208. P. xanthophysum A. Gray. Slender Panicum. N. & U. P. Grand Trav- 

 erse Co., Indian River and Black Lake; Cheboygan Co., C. F. Wheeler; Alma, C. A. 

 Davis; Manistee, F. P. Daniels; Northward to Keweenaw Co., O. A. Farwell. 



CHAETOCHLOA Scribn. SETARIA Beauv. 



*209. C. glauca (L.) Scrib. Yellow Foxtail. Setaria glauca Beauv. Cultivated 

 Fields. Common. Th. 



*210. C. Italica (L.) Scrib. Hungarian Grass, Italian or German Millet. Setaria 

 Italica R. & S. Persisting after cultivation. 



211. C. verticillata (L.) Scribn. Setaria verticillata Beauv. Ypsilanti, 0. A. 

 Farwell. 



*212. C. viridis (L.) Scrib. Green Foxtail. Setaria viridis Beauv. Cultivated 

 fields. Common. Th. 



CENCHRUS L. 



*213. C. tribuloides L. Sand-bur. Bur-grass. This bad weed has begun to 

 occupy the S. part of the State, as far north as Bay City. Not as yet troublesome 

 in fields, but likely to become so on sandy farms. 



ZIZANIA L. 



214. Z. aquatica L. Indian Rice. Water Oats. Borders of large streams and 

 lakes. Yields an edible grain, gathered by the Indians, and greedily eaten by wild 

 ducks which haunt lakes and rivers during its ripening in innumerable num- 

 bers. Th. 



HOMALOCENCHRUS Mieg. (LEERSIA Sw.) 



*215. H. oryzoides (L.) Poll. Rice Cut-grass. L. oryzoides Sm. Ditches and 

 wet lands. Frequent. Th. 



*216. H. Virginicus (Willd.) Britton. White Grass. L. Virginica Willd. Wet 

 woods and river banks. Th. 



PHALARIS L. 



*217. P. arundinacea L. Reed Canary-grass. Borders of streams, "var. picta, 

 the leaves striped with white, is the familiar ribbon-grass of the garden," Gray's 

 Manual. Ann Arbor, Prof. M. W. Harrington; S. Mich., Winch. Cat.; Macomb Co.; 

 Flint; Hubbardston; northward to L. Superior, Whitney Cat. Th. 



218. P. Canariensis L. Canary-grass. Occasionally found in waste places. 



ANTHOXANTHUM L. 



*219. A. odoratum L. Sweet Vernal-grass. Ionia; Grand Rapids, Coleman Cat.; 

 well established in the College lawn. Rare. 



SAVASTANA Schrank. HIEROCHLOE Gmel. 



220. S. odorata (L.) Scribn. Holy Grass. Hierochloe lorealis R. & S. Not 

 confined to the shores of the Great Lakes; rarely found in the central part of the 

 State. Ionia, Hubbardston, C. F. Wheeler; Macomb Co.; Flint; S. E., Winch. Cat.; 

 Ann Arbor, C. A. Davis. More common northward. Th. 



ARISTIDA L. 



221. A. gracilis Ell. Slender Aristida. Port Huron, C. K. Dodge; near Ann 

 Arbor, C. A. Davis. 



222. A. purpurascens Poir. Sturgis, F. P. Daniels. 



