FLORA OF MICHIGAN. 161 



5O1. AMMOPHILA, Host. SEA SAND-REED. 

 1588. A. arimdinacea, Host. N. & U. P. 



This is one of the few plants found both on the ocean and the shores of the Great Lakes. Petoskey ; 

 Point au Chene, Winch. Cat. Infrequent. 



5O2. ARRHENATHERUM, Beauv. OAT GRASS. 

 *1589. A. AVENACEUM, Beauv. 



Macomb Co., etc. Escaped from cultivation. 



503. DESCHAMPSIA, Beauv. 



1590. E>. flexuosa, Trin. Common Hair-Grass. 

 Oscoda; Baldwin, to Lake Superior, Macoun. 



*1591. D. csespitosa, Beauv. Th.. 



In bogs. Frequent. 



504. TRISETUM, Persoon. 



1592. T. subspicatum, Beauv., var. molle, Gray. U. P. 



Marquette, E. J. Hill; Whitney's Cat. Common. 



505. A VENA, Tourn. OAT. 



*1593. A. striata, Michx. Oat-Grass. Th. 



Woods. Infrequent. 



1594. A. Smith!!, Porter. (Melica Smitliii, Vasey.) 



Keweenaw Point ; Isle Royale, Dr. Bobbins, in Gray's Man.; woods near Sault de Ste. Marie, C. E. 

 Smith; shore of Crystal Lake, Benzie Co., L. H. Dewey; Vanderbilt, Otsego Co. 



5O6. DANTHONIA, DC. WILD OAT-GRASS. 

 *1595. D. spicata, Beauv. Th. 



Sterile soil. Frequent. 



1596. D. intermedia, Vasey. 

 Keweenaw Co., F. 



5O7. BOUTELOUA, Lagasca. MUSKIT-GRASS. 



1597. B. racemosa, Lag. Grama Grass. 



Dry plains. S. Mich., -Wright Cat.; Macomb Co. Rare. 



5O8. ELETJSINE, Gaertn. CRAB-GRASS. YARD-GRASS. 



*1598. E. INDICA, Gaertn. Dog's-tail or Wire Grass. S. &*C. 



Ionia Co.; South Haven, Bailey ; S. Mich., Wright Cat. Infrequent. 



5O9. TKIODIA, R. Br. 



1599. T. cuprea, Jacq. Tall Red-top. S. E. 



S. Mich., Wright's Cat. 



51O. PHRAGMITES, Trin. REED. 

 *1600. P. communis, Trin. Th. 



Swamps. Infrequent. 



511. KCELERIA, Pers. 



*1601. K. cristata, Pere. Th. 



Dry hills. Frequent. 



512. EATOXIA, Raf. 

 *1602. E. obtusata, Gray. 



S. E., Wright Cat.; Flint; Hubbardston, northward. Bare. 



