INTRODUCTION. 7 



Id, Revision of Rumex (1892). 



References to Minnesota material. 



WJieelock: Genus Polygala in N. America, Torr. Mem. II, No. 4 



(1891). 



References to Minnesota material. 



Bailey: Study of the Genus Carex (1887). 



References to Minnesota material. 



Bailey : Types of the Genus Carex (1889). 

 References to Minnesota material. 

 * Sargent: N. Amer. Silva, vols. I, II, III,— (1890— ). 



References to Minnesota plants. 



Johnson: Mycological Flora of Minn., Bull. Minn. Acad. Sci. (1877, 

 1878, 1879). 



775 species of funsi, nuiny doubtfully identified. 



*Art7iur,' Some Algae of Minn, supposed to Poison, Bull. Minn. Acad. 



Sci. Appx. (1883). 

 Johnson: Mycological Flora in VI. Rep., Geol. and Nat. Hist. Sur- 

 vey (1876). 



558 species listed ; many doubtful. 



Gray: Revisional papers in Proc. Am. Acad., (1883-1888). 

 Watson: Revisional papers in Proc. Am. Acad., (1885-1891). 

 Britton: Revisional papers in Trans. N. Y. Acad., (1887 — ). 



In all of these occasional references to Minnesota material are to be 

 looked for. 



Macoiin: Flora of Canada, (1883—). 



References to northern border localities. 



Uphani: Geographic Limits of species of Plants in the Basin of the 

 Red river of the North, Bost. Nat. Hist. Soc. Proc. (1891). 

 *Gray: Synoptical Flora (1886). 



Many references to Minnesota. 



Beports of Minn. Hort. Soc, Forestry Gomm., Agric. Soc. and Ex- 

 periment Station. (1870—). 

 Wolle: Algae of Minneapolis, Bull. Torr. Club., X, 13-21 (1883). 



Enumeration of species new to U. S., collected near Minneapolis by 

 Miss Eloise Butler. 18 sp., 8 forms new to science. 



Wolle: Desmids of U. S. (1884). 



References to Minnesota localities. 



Id. Fresh-water Algae of U. S. (1887). 



References to Minnesota localities. 



Journal of Mycoloc/y, (1885—). 



Occasional scattered allusions to Minnesota localities and fungi. 



Houghton: Loc. Plants coll. in N. W., Exp. (1834). 

 *Biddell: Syn. Fl. W. States (18.35). 



References to Minnesota localities. 



iMjyhuni: Grasses of Wise, and adjacent States, Trans. Wise. Agric. 



Soc, III, 397-488 (1853). 

 Whitney: Flora of Lake Superior Region; Foster and Whitney's 



Rep. Geol. Lake Sup. Land Dist., II, 359-381 (1851). 

 Pammel: Weeds of S. E. Wise and Minn. (1887). 

 *Leonard: Filical Fl. Minn., Bull. Minn. Acad. Sci. (1877-78). 



