544 MINNESOTA BOTANICAL STUDIES. 



been demonstrated in these experiments emphasizes the need 

 of special research in cultures upon American species. It is 

 possible to utilize Jacky's results only upon species common 

 to both Europe and America. Puccinia amorphcz Curt, upon 

 species of Amorpha have been retained under Schroeter's genus 

 Uropyxis . 



A. AUT-EUPUCCINIA. 



1. P. adoxae HEDW. Fl. Fr. 2: 220. 1815. 



On Adoxa moschatellina L. : Winona, (I) My. 1889, Hol- 

 zinger. 



2. P. calthae LK. in Linne, Sp. PI. 6 2 : 79. 1825. 



On Caltha palustris L. : St. Louis, (II) Jy. 1886, Holway 

 96. 



3. P. convolvuli (P.) CAST. Obs. i : 16. 1842. 



On Convolvulus sepium L. : Winona, (II, III) Ag. 1888, 

 Holzinger; Brown, (I) Jy. 1893, Sheldon 899; Blue 

 Earth, (I) Je. 1891 ; Sheldon 374. 



Convolvulus spithamceus L. : Winona, (III) Ag. 1888, Hol- 

 zinger 6. 



4. P. galii (P.) SCHWEIN. Syn. Fung. Car. Sup. 73. 1822. 

 On Galium asprellum MICHX. : St. Louis, Jy. 1886, Hol- 

 way 94. 



Galium continuum TORR. & GRAY : Winona, Ag. 1888, 

 Holzinger 198. 



5. P. gentianae (STRAUSS) LK. in Linne Sp. PI. 6 2 : 73. 1825. 

 On Genttana andrewstt GmsEB. : Brown, (II, III)Jy. 1891, 



Sheldon. 



Gentiana puberula MICHX. : Glenwood, (II, III) Ag. 1891, 

 Taylor 1179. 



6. P. pimpinella (STRAUSS) LINK in Linne Sp. PI. 6 2 : 77. 



1825. 



On Washingtonia claytoni (Micnx.) BRITTON : Houston, 

 (II, III) Je. 1899, Lyon 41. 



7. P. violae (SCHUM.) DC. Fl. Fr. 6: 92. 1815. 



On Viola canadensis L. : Lake, (I) Je. 1893, Sheldon 

 4758- 



Viola blanda WILLD. : St. Louis, (II, III) Jy. 1886, Hol- 

 way 131 ; Lake, (I) Je. 1893, Sheldon 4735 ; Wright, 

 (I) My. 1900, Freeman 662. 



