Sphaerotheca 53 



(97), P. altissima (60), P. purpurea, Prunella vulgaris, Sanvitalia 

 procumbcns, Saxifraga rotundifolia, Scabiosa arvcnsts; Scrophularia 

 canina, Scnccio Cacatiastrum, S. cordatus, S. fluviatUis, S. Fuchsii, 

 S. lugcns, S. neuiorcnsis, S. Sarraccnicus, S. subalpiuus, S. trian- 

 o-ularh Sico-esbeckia oricntalis, Taraxacum officinale, Tellima 

 randiflora, Thalictrum alpimun, Troxiinon glaucum, T. officinalis 



No 



la cucullata (363), 

 ■pum, X. spinosuui, 



folia, V. spartia, V. spicata, V. Virgimca, , 

 Xanthium Canadensc, X. Italicum, X. macro 



X. strumariuui. 



Distribution.— ^\:kovy. : Britain, France, Belgium, Nether- 

 lands, Switzerland, Italy, Germany, Austria-Hungary, Roumania, 

 Denmark, Norway, Sweden, Finland, Russia. 



Asia 



Jap 



North America: United States— Maine, Massachusetts, 



Jersey 



M 



Wisconsin, Missouri, Iowa, Minnesota, South Dakota (15O' 

 Montana, Wyoming, Colorado, California, Washington ; Canada, 



New Brunswick, Ontario. 



Hosts recorded for the aggregate ".S. Castagnd Lev. " Arabis 



alpina (176), Aster Bcllidiastrum (3), Caltha palustris (230), 



Crep 



torum (319), Cucumis ^^/r.w^ (22) (132) (133) (345) (377). Cu- 

 curbita (55) (132) (133) (176) (209) (214) (271)' C- '"''''""'' (^^)' 



tifoUuin 



Dipsacus fullonum (272), Epih 



Hi 



parvifolia (6), Hieracinm sabaudum (214) Impaticns Balsimina 

 (43), Lapsana communis (272) (319). Linaria vulgaris (107). Ly- 

 ciumozujtum (319), Pedicularis foliosa {290), Pentstemon barbatus 

 (107), Plantago major (390 and 39 0^ ^^^f^""' occidentahs (22) 



ipp 



tifoli 



^ if raga punctata (311), Scabiosa integrifoli 



Jacoba 



tifolius (3), S. spathulaefoU 



Spiraea flip 



