550 
26. 
OF. 
28. 
29. 
MINNESOTA BOTANICAL STUDIES. 
P. sorghi ScHwWEIN. Syn. Fung. Am. Bor. 295. No. 2910. 
T1331. 
On Zea mays L.: St. Louis, (II) Jy. 1886, Holway 136; 
, (II) 1893, Sheldon 6148; Brown, (II) Jy. 1891, 
Sheldon 1065. 
Sorghum sp. indet.: Hennepin, (III) O., 1890, Sheldon 
D4" 
P. emaculata ScHwein. Syn. Fung. Am. Bor. 295. No. 
20920, “1824. 
On Panicum capillare L.: Lincoln, (III) Ag. 1891, 
Sheldon 1530; Traverse, (III) S. 1893, Sheldon 7375 
7376. 
F. MiIcrRopuccinia. 
Pe. thahictCuny. Pl. Paris. 12 417; 11820. 
On Thalictrum sp. indet.: Cass, (III) Jy. 1893, Ander- 
son 573. 
G. LEPTOPUCCINIA. 
P. asteris Dusy, Botan. Gallic. 2: 888. 1828. 
On Aster macrophyllus L.: St. Louis, Jy. 1886, Holway 
37; Cass, Jy. 1893, Ballard 1652. 
Aster sagittifolius WiLLp.: Houston, Ag. 1899, Lyon 
452: 
Aster sp. indet.: Lake, Jy. 1886, Holway, 273. 
There is a great similarity in the spots, sori and spores of 
P. aster’s on A. macrophyllus to those of P. xanthiz Schwein. 
30. 
37 
32. 
Pcieces ters. Lent. Disp: Meth. 39. 1767- 
On Circea alpina L.: St. Louis, Jy. 1886, Holway 214. 
Circea lutetiana L.: Winona, Jy., 1888, Holzinger 206 
and 132; Pope, Jy. 1891, Taylor 887. 
Circea sp. indet.: Cass, Jy. 1893, Ballard 1655 
P. ornata ArtH. & Hotw. Rep. Bot. Wk. in Minn. for year 
L980, 3°30, “1867; 
On Rumex britannica L.: St. Louis, (III) Jy. 1886, Hol- 
way 223. 
Feumex sp. indet.: Crow Wing, (III) Ag. 1890, MacMillan 
and Sheldon. 
H. Lire Histories IMPERFECTLY KNOWN. 
P. variolans Hark. Bull. Calif. Acad. Sci. 1: 35. 1884. 
On Eriocarpum spinulosum (NuTT.) GREENE: Traverse, 
(III) S. 1893, Sheldon 7101. 
