BEAL ON MICHIGAN FLORA. 36 



BOTRYCHIUM Swartz. 



2a. B. boreale (Fries.) Milde. Keweenaw Co., O. A. Farwell. 

 3. B. dissectum Spreni?. B. ternatuyn dissectum D. C. Eaton. South Haven, 

 Bailey; Detroit, Foerste; Alma, C. A. Davis; St. Clair Co., J. W. Stacey. 



4. B. lanceolatum (S. G. Gmel.) Angstroem. Lance-leaved Grape-fern. Damp, 

 mo.ssy places. Lake Superior, H. Gillman; Keweenaw Co., O. A. Farwell. 



5. B. Lunaria (L.) Swartz. Moonwort. "Lake Superior (Lesquereux.) and 

 sparingly northward," Eaton in Gray's Manual; Keweenaw Co., 0. A. Farwell; 

 Harrisville, W. .T. B. Rare. 



6. B. matricariae (Sehrank.) Spreng. Keweenaw Co., O. A. Farwell. 



7. B. matricariaefolium A. Braun. Dark, wet woods. Lake Superior, D. C. 

 Eaton; Keweenaw Co.. (). A. Farwell. 



S. B. obliquum IMuhl. B. teniatiivi ohUquuvi D. C. Eaton. Pastures and 

 meadows. Fort Gratiot and S. Mich., Winch. Cat.; Flint; S. Haven, Bailey; Ann 

 Arbor, Allmendinger Cat.; Gratiot Co.; Keweenaw Co., Detroit, O. A. Farwell; Ber- 

 rien Co., H. S. Pepoon. Infrequent. 



Sa. B. obliquum intermedium (D. C. Eaton) Underw. B. ternanatum australe 

 D. C. Eaton. Keweenaw Co., 0. A. Farwell. 



9. B. Onondagense Underw. Keweenaw Co., O. A. Farwell. 



10. B. simplex Hitchcock. Little Grape-fern. Hillsides. Westward to Lake 

 Superior, D. C. Eaton, Ferns of N. Am.; Keweenaw Co., O. A. Farwell; near Oscoda 

 in 1888, the only station known in the Lower Peninsula. Rare. 



11. B. tenebrosum A. A. Eaton. Keweenaw Co., O. A. Farwell. 



*12. B. Virginianum (L.) Swartz. Virginia Grape-Fern. Rich woods. Variable. 

 Common. 



13. B. Virginianum gracile Pursh. With type. 



OSMUNDACEiE R. Br. Royal Fern Family. 



OSMUNDA L. 



*18. 0. cinnamomea L. Cinnamon Fern. Swamps. Common. 



*19. 0. Claytoniana L. Clayton's Fern. Moist grounds, common. Th. 



*20. 0. regalis L. Flowering Fern. Swamps, common. 



POLYPODIACE^ R. Br. Fern Family. 

 ONOCLEA L. 

 *21. 0. sensibilis L. Sensitive Fern. Wet places. Abundant. Th. 



MATTEUCCIA Todaro. Onoclea L. in part. 



*22. M. Struthiopteris (L.) Todaro. Ostrich Fern. Onoclea Struthiopteris (L.) 

 Hoffm. Alluvial soil. Infrequent. Th. 



WOODSIA R. Br. 



23. W. alpina (Bolton) S. F. Gray. Alpine Woodsia. W. hypcrborea R. Br. 

 U. P., O. A. Farwell. 



24. W. Ilvensis (L.) R. Br. Rusty Woodsia. N. E., Winch. Cat.; Lake Superior, 

 Whitney Cat.; Lower Falls of the Quinnesec, E. J. Hill; Norway, C .F. Wheeler. 



2.5. W. obtusa (Spreng.) Torr. Blunt-lobed Woodsia. Rocky places. Huron Co., 

 C. A. Davis. U. P. Not rare. 



26. W. Oregana D. C. Eaton. Oregon Woodsia. Crevices of rocks south shore 

 of Lake Superior, Dr. Rob])ins in Gray's Manual. 



27. W. scopulina D. C. Eaton. Rocky Mountain Woodsia. Rocks of the lower 

 falls of the Menominee river, C. F. Wheeler. 



DENNSTAEDTIA Bernh. Dicksonia L'Her. 



28. D. punctilobula (Michx.) Moore. Dicksonki punctUohula (Michx.) A. Gray. 

 Petoskey, Emmet Co.. Winch. Cat.; Keweenaw Co., O. A. Farwell. 



