Freeman: MINNESOTA UREDINEZ. 539 
1. C. sonchi-arvensis (P.) WinT. Die Pilze 1': 247. 1884. 
On leaves of: 
Solidago serotina Arr.: Lincoln, (II) Ag. 1891, Sheldon 
1506; Houston, (II) Ag. 1899, Lyon 360. 
Solidago canadensis L.: Traverse, (II) S. 1893, Sheldon 
7080. 
Solidago flexicaulis L.: Case, (Il) Ag. 1893, Anderson 
702. 
Solidago sp. indet.: Chicago, (II) S. 1891, Sheldon 4261 ; 
Lincoln, (II) Ag. 1891, Sheldon 1420; Hennepin, (II) 
O. 1898, Freeman; Traverse, (II) S. 1893, Sheldon 
7308; Houston, (II) Ag. 1899, Lyon 430. 
Laciniaria sp. indet.: Traverse, (II) S. 1893, Sheldon 
7381. 
Aster divaricatus Li. : St. Louis, (II) Jy. 1886, Holway 102. 
Aster macrophyllus L.: Cass, (III) Ag. 1893, Ballard 
1747: 
Aster sp. indet.: St. Louis, (II) Jy. 1886, Holway 165 and 
251; Winona, (II) Jy. 1888, Holzinger 139; Houston, 
(II) Ag. 1899, Lyon 4o1 and 398; Hennepin, (II) S. 
1889, MacMillan; Hennepin, (II) Ag. 1892, Sheldon 
At22.. 
Doellingeria umbellata (Ditu.) NeExEs: St. Louis, Jy. 
1886, Holway 83. 
Melampsora CASTAGNE. 
Three species. The uredo forms of those species growing 
on Populus and Salix are especially abundant. All three 
species are Hemi-melampsoras. 
1. M. epilobii (P.) Fcxi. Sym. Myc. 44. 1869. 
On leaves of: 
Epilobium coloratum Muuu. : ——, (Il) S. 1893, Sheldon 
6147; St. Louis, (II) Jy. 1886, Holway 35 and 89. 
Epilobium lineare Muuu.: St. Louis, (II) Jy. 1886, Hol- 
meay to - ) 
Epilobium sp. indet.: Waseca, (II) Je. 1891, Sheldon 357. 
2. M. populina (Jacq.) Lev. Ann. Sci. Nat. II]. 8: 375. 1847. 
On leaves of: 
Populus tremuloides Micux.: Otter Tail, (J1) Ag. 1892, 
Sheldon 3890; St. Louis, (II) Jy. 1886, Holway 198 
