540 MINNESOTA BOTANICAL STUDIES. 
Populus deltoides Marsu.: Lincoln, (II) Ag. 1891, Shel- 
don 1573; Hennepin, (II) S. 1899, Lyon; Winona, (II). 
S. 1888, Holzinger; Hennepin, (II) S. 1889, Mac- 
Millan. 
3. M. salicis-capreea (P.) WintT. Die Pilze 17: 239. 1884. 
On leaves of: 
Salix discolor Munu.: St. Louis, (II) Jy. 1886, Holway 
IOI. 
Salix myrtillocdes L.: St. Louis, (II) Jy. 1886, Holway 
166. 
Salix sp. indet.: Hennepin, (II) S. 1890, MacMillan; 
Brown, (II) Jy. 1891, Sheldon 1087 and 995; Blue 
Earth, (II) Jy. 1891, Sheldon 478; Mille Lacs, (II) Jy. 
1892, Sheldon 2978; Hennepin, (II) O. 1892, Sheldon 
4126. 
Calyptospora J. Kiun. 
The well-known species on the mountain cranberry has been 
collected only in one locality. 
1. C. goeppertiana Kiun. Hedw. 8: 81. 1869. 
On Vaccinium vitis-idea L.: Cooke, (III) Jy. 1899, Mac- 
Millan ; Cooke, (III) Jy. 1900, Mrs. C. J. Hibbard. 
II. PUCCINIACEZ. 
Uromyces Linx. 
Fourteen species of Uromyces have been found in the State. 
Seven of these are found upon plants of the Pulse family. Very 
common also are those species found upon Euphorbia, Arisema 
and Polygonum. Four species belong to the Hemzuromyces, 
seven to the Hwawromyces and of the remaining three, the life 
histories are incomplete. The Hwervomycetes are all autcecious. 
A. AuT-EUUROMYCES. 
1. U. fabe (P.) DE Bary, Ann. Sci. Nat. IV. 20: 76. 1863. 
Uromyces polymorphus Pk. * differs from this species only in 
greater variability of the teleutospore form. The pedicel is no 
criterion. I have therefore included forms on Lathyrus and 
Vicca under U. fabe although exhibiting considerable variation 
in spore form. 
*Ellis. N. A. Fungi no. 1442. 
