Freeman: MINNESOTA UREDINE^E. 559 



24. A. hydrophylli PECK, Rep. N. Y. St. Mus. Nat. Hist. 26: 



78. 1874. 



On HydrophyUwn -cirginicnm L. : Mille Lacs, Je. 1891, 

 Sheldon 2475 and 2822 ; Ramsay, Je. 1899, Freeman 

 397 ; Wright, My. 1900, Freeman 600. 



25. A. pammelii TREL. Trans. Wis. Acad. Sc.A.andL. 6: 33. 



1884. 

 On Euphorbia corollata L. : Houston, Jy. 1899, Lyon. 



26. A. peckii DETONI, Syll. Fung. 7: 790. 1888. 



On Onagra biennis (L.) SCOP. : Pope, Jy. 1891, Taylor 

 865; Waseca,Je. 1891, Sheldon 510 ; Waseca, Je. 1892, 

 Taylor 479; Ramsey, Jy. 1898, Freeman 72; Hennepin, 

 My. 1899, Freeman 337 ; Pine, Je. 1899, Freeman 508 

 and 498. 



27. A. phrymae HALST. Journ. Myc. 2: 52. 1886. 



On Phryma leptostachya L. : Waseca, Je. 1891, Sheldon 

 564; Brown, Ag. 1891, Sheldon 1000. 



28. A. fraxini SCHVVEIN. Syn. Fung. Car. Sup. 66. No. 430. 



1822. 

 On Fraxinus Americana L. : Lincoln, Ag. 1891, Sheldon 



1520; Brown, Jy. 1891, Sheldon 1205. 

 Fraxinus sp. indet. : Brown, Jy. 1891, Sheldon 1076; 



Kandiyohi, Jy. 1892, Frost 292. 



Peridermium LEV. 



1. P. balsameum PK. Rep. N. Y. St. Mus. Nat. Hist. 27: 



104. 1875. 



On Abies balsamea (L.) MILL. : St. Louis, Jy. 1886, Hoi- 

 way 208. 



The spores of this specimen are uniformly smaller than those 

 described by Peck and agree more nearly with those of A. 

 elatinnm. No distortion of the branches has been reported. 

 The spores measure 14 x 17 2O//. 



2. P. abietinum (A. & S.) THUM. var. decolorans THUM. 



On Picea mariana (MILL.) B.S.P. : St. Louis, Jy. 1886, 



Holway 93. 



The spores agree with those of the ascidia of Chrysomyxa 

 ledi, to which this species supposedly belongs. 



