430 MINNESOTA BOTANICAL STUDIES. 



Symphoricarpos occidentals HOOK. : Ramsey, Sept., 1898, 

 Freeman 53. 



18. Microsphaera diffusa C. & P. Journ. of Bot. n : 1872. 



Rep. N. Y. St. Mus. 25: 95. 1873. 

 On leaves of : 



Lespedeza violacea (L.) PERS. : Winona, Sept., 1889, 



Holzinger. 



Lathyrus sp. indet. : Hennepin, 1890, MacMillan. 

 Meibomia canadensis (L.) KUNTZE. : Lincoln, Aug., 1891, 



Sheldon 1521 ; , Sept., 1893, Sheldon 6105. 



Seymour reports M. diffusa on Lespedeza capitata at 



Brainerd. 



19. Microsphaera alni (DC.) WINT. Die Pilze i 2 :38. 1887. 

 On leaves of : 



Lonicera sp. indet. : St. Louis, July, 1886, Holway 242, 

 (M. dttbyiLev.) ; Ramsey, Sept., 1898, Freeman 56. 



Lonicera hirsuta Eaton : St. Louis, July, 1886, Holway 

 150, (M. dubyi Lev.). 



Syringa vulgaris L. : Hennepin, July, 1889, Sheldon; 



Hennepin, Oct., 1891; , Sheldon 5806; Goodhue, 



Aug., 1893, Anderson 714. 



Alnus sp. indet. : Hennepin, 1890, MacMillan. 



Viburnum lentago L. : Waseca, June, 1891, Sheldon, 

 506^; Case, Aug., 1893, Anderson 668; Ramsey, 

 Sept., 1898, Freeman 54. 



Viburnum sp. indet. : Ramsey, Sept., 1898, Freeman 55. 



Lonicera dioica L. : Goodhue, Aug., 1893, Anderson 753. 



Corylus americana WALT. : Ramsey, Sept., 1898, Free- 

 man 57. 



Tilia americana L. ! : Hennepin, Oct., 1898, Freeman 58. 



Seymour reports this species on Ceanothus americanus at 

 Brainerd and on Syringa vulgaris and Betula at Lake 

 Minnetonka. 



