MICHIGAN FLORA. 



509 



Biack-Grass. 1225. Gerardi, Loisel. 



"Rare along the Great Lakes."— Gray's Man. 



Bog Rush. 1226. tenuis, Willd. 



Low grounds. A tall form, 2% feet high, grows at Muir; and Palo, 

 Ionia Co. (!) Common. 



Bog Rush. 1227. Greenii, Oakes & Tuckerman. S. E. 



Detroit(!). 



Bog Rush. 1228. Vaseyi, Engelm. S. E. 



"With the last. 



Bog Rush. 1229. pelocarpus, E. Meyer. L. P. 



Bear Lake, Manistee Co.— E. J. Hill; Macomb Co.— Dr. D. Cooley. 



Bog Rush. 1230. articulatus, L. Th. 



S. Haven— Bailey; common at Petoskey(l); and northward. 



Bog Rush. 1231. alpinus, Villars, var. insignis, Fries. U. P. 



"Along the Great Lakes northward and westward."— Gray, 



Bog Rush. 1232. acuminatus, Michx., var. legitimus, Engelm. 0. & S. 



Macomb Co.; Fruitport— E. J. Hill; Hubbardston(!). 



Bog Rush. 1233. nodosus, L. Th. 



Gravelly banks. Common. 



Bog Rush. 1234. nodosus, L., var. megacephalus, Torr. 



Montcalm Co.(!) 



Bog Rush. 1235. brachycarpus, Engelm. 



Dr. Engelmann. 



Bog Rush. 1236. Canadensis, J. Gay, var. longicaudatus, Engelm. 0. & S. 



Fruitport— E. J. Hill; Macomb Co.; Lansing. 



Bog Rush. 1237. Canadensis, J. Gay, var. brachycephalus, Engelm. 



Hubbardston(l). 



Bog Rush. 1238. Canadensis, J. Gay, var. coarctatus, Engelm. 



Muir(!); Hubbardston(l); to L. Superior. 



Pickerel- 

 weed. 



Water Star- 

 grass. 



PONTEDERIACEvE. 



(Pickerel-weed Family.) 



PONTEDERIA 



1239. cordata, L. Th. 



Borders of lakes and slow streams. Lakes in Oakland Co.(!); Ann Arbor; 

 Ionia Co. (!); and northward. 



SCHOLLERA 



1240. graminea, Willd. 



C. & S. 



Ann Arbor.— Allmend. Cat.; Dexter.— Dr. Elmore Palmer; Grand Rap- 

 ids(!); Hubbardston(!). In streams. Common. 



Day-flower. 



Common Spi- 

 derwort. 



COMMELYNACE.E. 



(Spiderwort Family.) 



COMMELYNA 



1241. Virginica, L. 



Wright Cat. 

 TRADESCANTIA 



1242. Virginica, L. 



S. W. 



c.&s. 



Moist woods. Ionia Co.(!); Grand Rapids(l); Ann Arbor.— Allmendinger 

 Cat. Frequent. Often cultivated in the Eastern States. 



