| 
Freeman: MINNESOTA UREDINE. 545 
Viola blanda palustriformis A. Gray : Hennepin, (I) My. 
1891, Sheldon 5961. 
Viola blanda amena (LE Conte) B.S.P.: Crow Wing. 
(I) Je. 1892, Sheldon 2150; Mille Lacs, (I) Jy. 1892, 
Sheldon 2705 %. 
Viola scabriuscula (T. & G.) ScHwein.: Wright, (I) My. 
1900, Freeman 592. 
Viola sp. indet.: Hennepin, (II, III) S. 1889, MacMillan ; 
Brown, (III) Jy. 1891, Sheldon 845 and 850; Henne- 
pin, (III) O. 1892, Sheldon 4090 ; » LI eS: 16535 
Sheldon 7242. 
8. P. menthe americana BurRILt, Bull. Ill. St. Lab. Nat. 
Hist. 2: 189-191. 1885. 
The echination, which distinguishes this form from the Euro- 
pean form, is in almost all specimens most marked at the apex 
of the teleutospores. Many teleutospores are almost smooth 
at the base. European teleutospore specimens are sometimes 
slightly echinate at the apex. 
On Monarda jfistulosa L.: Chisago, Ag. 1883, Arthur; 
Winona, (III) Ag. 1888, Holzinger 42; Winona, (II, 
III) Ag. 1888, Holzinger; Hennepin, (III) 1890, Mac- 
Millan; Hennepin, (III) O. 1893, Sheldon 4096; Trav- 
erse, (LMS. 1803, Sheldon. 7175; Winona, (ll) Ss. 
1893, Edna Porter; Hennepin, (III) S. 1898, MacMil- 
lan; Houston, (IIT) Ag. 1899, Lyon 321. 
Koellia virginiana (L.) MacM.: Winona, (II, III) Ag. 
1888, Holzinger 164. 
Mentha canadensis L.: Hennepin, (II, III) Ag. 1883, Ar- 
thur; St. Louis, (II, III) Jy. 1886, Holway 236; Lin- 
coln, (II, III) Ag. 1891, Sheldon 1419; Kamsey, (II) Je. 
1899, Freeman 458; Ramsey, (II, III) S$. 1898, Free- 
man. 
Mentha sp. indet. : ——, (II, III) 1893, Sheldon 6070 and 
7019; Traverse, (II, III) S. 1893, Sheldon 7382. 
pee tanaceti DC. Fl. Fr: 2: 222.) 2815). 
The Puccinza on Helianthus differs from that on Zanacetum 
only in having a slightly broader teleutospore. This is espe- 
cially true of the distal cell. Culture experiments are necessary 
to separate these forms. 
On Artemisia dracunculocdes PursH : Houston, (II, II) Ag. 
1899, Lyon 391; Traverse, (III) S. 1893, Sheldon 7311. 
