bea Biel oe 
Witson: NortH AMERICAN PERONOSPORALES 405 
Flelianthus doronicoides Lam., Iowa, Arthur ; Kansas, 
Kellerman (Fungi Europ. 3278, N. Am. Fungi 140} Cc). 
flelianthus grosseserratus Martens, Iowa, fhichcock, Mac- 
bride; Nebraska, Sheldon. 
Flelianthus hirsutus Raf., Missouri, Pammel. 
Flelianthus Maximiliani Schrad., lowa, * Pammel. 
flelianthus occidentalis Riddell, Wisconsin, Pammel. 
flelianthus scaberrimus Ell., Nebraska, Bates (Fungi 
Columb. 2739). 
Flekanthus strumosus L., Minnesota, Arthur ; Wisconsin, 
Davis. 
Helianthus tuberosus L., Pennsylvania, El/is (N. Am. Fungi 
7403 a); Wisconsin, Farlow, Pammed. 
Helianthus sp.. New York, Thom; Missouri, Galloway 
(on “Vernonia noveboracensis’’); Wisconsin, Davis. 
Rudbeckia laciniata L., Nebraska, Sheldon ; North Dakota, 
Seymour ; Wisconsin, Davis, Pammel. 
Rudbeckia triloba L., Mlinois, Hart. 
Silphium integrifolium Michx., Kansas, Kellerman (Fungi 
Europ. 3279); Nebraska, She/don; Wisconsin, Davis, 
Pammel. 
Siphium laciniatum L., lowa, Arthur. 
Siphium perfoliatum L., lowa, Bessey ; Minnesota, Pam- 
mel, Missouri, Pammel; Nebraska, Sheldon ; Wiscon- 
sin, Davis, Tracy. 
Silphium terebinthinaceum Jacq., Illinois, Pamemel ; Wiscon- 
sin, Davis, Pammel, Trelease (N. Am. Fungi 7403 6). 
Verbesina encelioides (Cav.) A. Gray, New Mexico, F. S. & 
ce oy ere. 172. 
The following additional hosts are reported from our limits: 
Artemisia ludoviciana Nutt., Bidens comosa (A. Gray) Wiegand, 
B. connata Muhl., Centaurea sp., Helianthus trachaelifolius Willd., 
lva xanthiifolia (Fres.) Nutt., Madia sativa Molina, Silphium tri- 
Joliatum 1, Solidago canadensis L., S. Riddellit Frank, Vernonia 
Baldwinit Torr., V. noveboracensis (L.) Michx., and Xanthium 
canadensis Mill. Of these two are somewhat doubtful, as it is 
quite probable that the record of /va as a host refers to Baszdio- 
Phora Kellermanit, while a part of the material which served as the 
