MICHIGAN FLORA. 



525 



Millet. 

 Bengal-Grass. 



Bar-Grass. 



1554. Italica, Kunth. 



Remaining after cultivation. Adv. 



CENCHRUS 



1555. tribuloides, L. 



This bad weed has begun to occupy the S. part of the State, not having 

 been reported N. of Grand Rapids (!). Not as yet troublesome in fields, 

 but likely to become so on sandy farms along the Great Lakes. 



ANDROPOGON 



Beard-Grass. 1556. furcatus, Muhl. 



Light soil. 



Beard-Grass. 1557. SCOpariuS, Mx. 



Sterile soil. 



Beard-Grass. 1558. Virginicus, L. 



S. Mich.— Wright Cat. 



SORGHUM 



indian-Grass. 1559. nutans, Gray. 



Wood Grass. J . , 



Dry banks and sandy fields. Variable. 



c. &s. 



Common. 



0. &. s. 



Frequent. 



0. &s. 



Common. 



Great Horse- 

 tail. 



Common 

 Horsetail. 



Meadow 

 Horsetail. 



Wood Horse- 

 tail. 



Swamp 

 Horsetail. 



Scouring 

 Rush. 



EQUISETACE^E. 



( Horsetail Family. ) 



EQUISETUM 



1560. Telmateia, Ehrh. 



Shore of the upper Great Lakes.— Gray's Manual. 



1561. arvense, L. (***) 



Damp, sandy grounds. 



1562. pratense, Ehrh. 



Macomb Co.; Flint; to Pine Lake, Emmet Co.— Winch. Cat. 



1563. sylvaticum, L. 



Th. 



Common. 



L. P. 



Rare. 



Th. 



Ann Arbor, rare.— Allmend. Cat.; Clinton Co. (!); Montcalm Co. (!); Flint; 

 and northward where it is common. 



1564. palustre, L. 



1565. limosum, L. 



In shallow water. 



1566. hyemale, L. (***) 



Wet banks. 



1567. variegatum, Schleicher. 



U. P. 



c. &s. 



Common. 



Th. 



Common. 



Th. 



S. E.— Winch. Cat.; Hubbardston (!); Muir (!); Macomb Co.; Flint; sand 

 dunes at the head of Little Traverse Bay (!); Drummond's I., etc. 



Infr. 



1568. scirpoides, Michx. Th. 



Macomb Co.; Flint; Hubbardston (!); Petoskey(I); to L. Superior.— Whit- 

 ney Cat. 



FILICES. 



Common 

 Polypody. 



POLYPODIUM 

 1569. vulgare, L 



{Ferns.) 



(***) Th. 



Dry banks and rocks. Grand Ledge— Prof. W. J. Beal; Hubbardston (!), 

 etc. Rarely seen in L. P., but very common in U. P. 



