BEAL ON MICHIGAN FLORA. 35 



BOTRYCHIUM Swartz. 



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

 3. B. dissectum Spreng. B. ternatum dissectum D. C. Eaton. South Haven, 

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



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

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



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

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

 Harrisville, W. J. B. Rare. 



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



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

 Eaton; Keweenaw Co., O. A. Farwell. 



8. B. obliquum Muhl. B. ternatum obliquum 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. 



8a. B. obliquum intermedium (D. C. Eaton) Underw. B. ternanatum australe 

 D. C. Eaton. Keweenaw Co., O. 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. 



OSMUNDACE^E E. 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., 0. 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. 



25. 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. Robbins 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. Dicksonia punctilobula (Michx.) A. Gray. 

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



