540 MINNESOTA BOTANICAL STUDIES. 



Po-puhis deltoides MARSH. : 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-capreae (P.) WINT. Die Pilze i 2 : 239. 1884. 

 On leaves of : 



Salix discolor MUHL. : St. Louis, (II) Jy. 1886, Holway 



101. 

 Salix myrtilloides 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. KUHN. 



The well-known species on the mountain cranberry has been 

 collected only in one locality. 



i. C. goeppertiana KUHN. Hedw. 8: 81. 1869. 



On Vaccinium vitis-idcea L. : Cooke, (III) Jy. 1899, Mac- 

 Millan ; Cooke, (III) Jy. 1900, Mrs. C. J. Hibbard. 



II. PUCCINIACE^E. 

 Uromyces LINK. 



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^ Arts&ma 

 and Polygonum. Four species belong to the Hemiuromyccs^ 

 seven to the Euuromyces and of the remaining three, the life 

 histories are incomplete. The Euuromycetes are all autcecious. 



A. AUT-EUUROMYCES. 



i. U. fabae (P.) DE BARY, Ann. Sci. Nat. IV. 20: 76. 1863. 

 Uromyces -polymorj)hus 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 

 Vicia under U.fabce although exhibiting considerable variation 

 in spore form. 



* Ellis. N. A. Fungi no. 1442. 



