MICHIGAN FLORA. 



52? 



Marsh Shield- 

 Fern. 



New York 

 Shield-Fern. 



Fragrant 

 Wood-Fern. 



Spinulose 

 or Common 

 Wood-Fern. 



Spinulose 

 or Common 

 Wood-Fern. 



Spinulose 

 or Common 

 Wood-Fern. 



Boott's Wood- 

 Fern. 



Crested Wood 

 Fern. 



Goldie's Wood- 

 Fern. 



Male-Fern. 



Evergreen 

 Wood-Fern. 



Christmas- 

 Fern. 



Holly-Fern. 



Prickly 

 Shield-Fern. 



Bulblet 

 Cystopteris. 



Brittle-Fern. 



Mountain 

 Cystopteris. 



Ostrich-Fern. 



Sensitive. 

 Fern. 



Obtuse-leaved 

 Woodsia. 



ASPIDIUM 



1588. Thelypteris, Swartz. 



Swamps. 



1589. Noveboracense. Swartz. 



Th. 



Frequent. 



c. &s. 



Swamps. Ann Arbor— Allmendinger Cat. ; Macomb Co. ; Lansing— Bailey ; 

 Hubbardston (!). 



1590. fragrans, Swartz. U. P. 



Crevices of shaded cliffs. Isle Royale, and Keweenaw Peninsula.— Dr. 

 Lyons. 



1591. spinulosum, Swartz, var. vnlgare, Eaton. 



Th. 



Shady woods. Flint; Hubbardston (!); L. Superior— D. C.Eaton, Ferns 

 of N. A. 



1592. spinulosum, Swartz, var. intermedium, Eaton. Th. 



Woods. Common. 



1593. spinulosum, Swartz, var. dilatatum, Eaton. Th. 



Woods. Ann Arbor— Allmendinger Cat.; Macomb Co.; Flint; Hubbard- 

 ston!.!); Petoskey(l); and northward. 



1594. Boottii, Tuckerman. 



Alder thickets. Hubbardston (!) ; Ann Arbor— Winch. Cat. 



1595. cristatum, Swartz. Th. 



Swamps. Frequent. 



1596. cristatum, Swartz, var. Cliutonianum, Eaton. 



Ann Arbor.— Allmendinger Cat; Hubbardston (!). 



1597. Goldianum, Hook. 0. & S. 



Moist woods. Lansing.— Bailey; Flint; Hubbardston (!). Rare. 



1598. Filix-mas, Swartz. (*) U. P. 



Rocky woods. Keweenaw Peninsula, Lake Superior.— Gray. 



1599. marginale, Swartz. (***) Th. 



Hillsides in rich woods. S. Haven— Bailey; Flint; Hubbardston (!); and 

 northward. Frequent. 



1600. acrostichoides, Swartz. Th. 



Shady hillsides. Fronds evergreen, used for decoration. Common. 



1'iOl. Lonchitis, Swartz. U. P. 



Woods. Southern shore of L. Superior.— Prof. Whitney. 



1602. aculeatum, Swartz., var. Braunii, Koch. U. P. 



Ontonagon Peninsula.— Eaton's Ferns of N. A. 



CYSTOPTERIS 



1603. bulbifera, Bernh. 



Moist shaded hillsides 



1604. fragilis, Bernh. 



Woods and river banks 



Th. 



Locally frequent. 



Th. 



Ann Arbor— Allmendinger Cat.; Lansing— Bai- 

 ley; Flint; Hubbardston (!) northward to L. Superior— Whitney. 



1605. montana, Bernh. 



North shore of Lake Superior, J. Macoun, 1869,— Eaton's Ferns of N. A.; 

 and probably in our district. 



ONOCLEA 



1606. struthiopteris, Hoff. Th. 



Alluvial soil. Worthy of cultivation; one of our finest ferns. 



Infrequent. 



1607. seusibilis, L. 



Wet places. 



WOODSIA 



1608. obtusa, Torr. 



Rocky places. 



Th. 



Abundant. 



U. P. 



Not rare. 



