420 BOTANICAL GAZETTE | DECEMBER 
septa are always transverse. In addition to the variation in the number 
of cells, the spores are peculiar because of the position of strongly 
developed papillae. Usually a single papilla is found at the apex of 
the spore, but often the spores are truncate, when two papillae appear, 
cero 
Fic. 3.—Teleutospores of Puccinia irregularis. a, one-celled; 4, with papilla 
below septum; c, with side thickening ; ¢, two- and three-celled. 
one on each side. In some the papilla is found just below the septum. 
One spore was observed having the whole of one side thickened instead 
of the apex. The spores measure 50-75 X19~-28m, the one-celled 
spores being somewhat smaller. ‘ 
An examination of the material in the herbaria of the Missoum 
Botanical Garden and the Iowa State College leads to the belief that 
this is undoubtedly the species referred to P. Solidaginis Pk. by Dr. Tre- 
lease, no. 169, Preliminary list of parasitic fungi of Wisconsin. 
AE@Tey 
Fic. 4.—Teleutospores of Puccinia Montanensis. a, normal; 4, three-celled; % 
four-celled; d, five-celled. 
A specimen of Puccinia occurring on Elymus robustus Was collected 
at Ames, Iowa, by G. W. Carver, October 14, 1895. The ee 
number of the spores were quite normal in shape and just what mig 
