143 
1240. A. SCabra, Willd. Hair-Grass. 
Prairies; common. July. 
CINNA, L. 
1241. c. arundinacea, L. Wood Reed-Grass. t 
Moist or wet shaded places ; frequent, especially along river banks. 
J uly — September. 
CALAMAGROSTIS, Adans. 
1242. C. canadensis, Beauv. Blue Joint-Grass. 
Deyeuxia canadensis , Beauv. 
Wet places; frequent throughout our district. July 5th — Aug. 25th. 
By its strong rhizomes and roots it tends to hold together the 
shifting sands of the lake shore dunes. 
1243. C. longifolia, Hook. Reed Bent-Grass. 
cy-j Ammophila longifolia f Benth. 
Sandy soil along the lake shore, both north and south ; infrequent 
or rare. August. 
AMMOPHILA, Host. 
1244. A. arundinacea, Host. Sea Sand-Reed. 
„ Calamagrostis arenaria, Roth. 
Sandy soil along the lake shore, south not rare. August. 
DANTHONIA, D 0. 
1245. D. spicata, Beauv. Wild Oat-Grass. 
In Babcock’s herbarium, credited to M. S. Bebb and labeled “Near 
°fj Chicago.” (B.) 
PHRAGMITES, Trin. 
1246. P. communis, Trin. Reed. 
Sloughs, south and southeast; frequent or common, elsewhere less 
common. 
KCELERXA, Pers. 
1247. K. cristata, Pers. 
^ > Dry banks and fields; frequent or common. July. 
EATONIA, Raf. Eatonia. 
1248. E. obtusata, Gray. 
Frequent on dry prairies from Englewood, south. June — July. (B.) 
1249. E. pennsylvanica, Gray. 
Moist and open woods and fields; frequent. June — July. (B.) 
