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.  Puccinza amorphe Curt. upon 
species of Amorpha have been retained under Schroeter’s genus 
Uropyxis. 
A. AUT-EUPUCCINIA. 
i. Pvadoxe Hepw.)PlePr2: 2200 18a5: 
On Adoxa moschatellina L.: Winona, (1) My. 1889, Hol- 
zinger. 
2, Peat (icin inne, Sp. Pl67:.7o. "1025. 
On Caltha palustris L.: St. Louis, (II) Jy. 1886, Holway 
96. 
3. P. convolvuli (P.) Cast. Obs. 1: 16. 1842. 
On Convolvulus sepium L.: Winona, (II, III) Ag. 1888, 
Holzinger; Brown, (I) Jy. 1893, Sheldon 899; Blue 
Earth, (1) Je. 1891 ; Sheldon 374. 
Convolvulus spithameus L.: Winona, (III) Ag. 1888, Hol- 
zinger 6. 
4. P. galii (P.) Schwein. Syn. Fung. Car. Sup. 73. yoga 
On Galium asprellum Micux.: St. Louis, Jy. 1886, Hol- 
way 94. 
Galium concinnum Torr. & Gray: Winona, Ag. 1888, 
Holzinger 198. 
5- P. gentiane (Strauss) Lx. in Linné Sp. Pl. 67: 73. 1825. 
On Gentiana andrewst GRisEB. : Brown, (II, III) Jy. 1891, 
Sheldon. 
Gentiana puberula Micux.: Glenwood, (II, III) Ag. 1891, 
Taylor 1179. | 
6. P. pimpinelle (Strauss) Linx in Linné Sp. Pl. 67: 77. 
1825. 
On Washingtonia clayton (Micux.) Brirron: Houston, 
(II, III) Je. 1899, Lyon 41. 
7- P. viole (Scum) DC. whl ir O° o2k res. 
On Viola canadensis L.: Lake, (I) Je. 1893, Sheldon 
4758. 
Viola blanda Wiiuv.: St. Louis, (II, III) Jy. 1886, Hol- 
way 131; Lake, (I) Je. 1893, Sheldon 4735; Wright, 
(1) My. 1900, Freeman 662. 
