Witson : NortH AMERICAN PERONOSPORALES 67 
Neshia paniculata Desv., Quebec, Eggleston 2978. 
Raphanus sativus L., Wlinois, Lreyfogle ; Indiana, Underwood ; 
Iowa, Arthur; Kansas, *Bartholomew (Fungi Columb. 
7805); New York, Arthur, * Underwood. 
Roripa Armoracia (L.) A. S. Hitchcock, Indiana, Stewart, 
* Wilson ; Kansas, Bartholomew (Fungi Columb. 7806), 
Kellerman ; Massachussetts, Seymour (Econ. Fungi 4546) ; 
Missouri, Demetrio (N. Am. Fungi 2420); New Jersey, 
Stevens ; New York, Arthur, Holsworth, Underwood ; Ohio, 
Kelsey (Econ. Fungi 454a); South Dakota, Williams. 
Roripa hispida (Desv.) Britton, Illinois, Arthur. 
Roripa obtusa (Nutt.) Britton, Kansas, Bartholomew (Fungi 
Columb. 2109). 
Roripa palustris (DC.) Bessey, Oregon, Cusick 2600. 
Roripa sessiliflora (Nutt.) A. S. Hitchcock, Illinois, Patterson ; 
lowa, Ehinger; Kansas, Bartholomew (Fungi Columb. 
2001); Kentucky, Price ; Tennessee, Ruth 747. 
Roripa Walteri (Ell.) Greene, Florida, Underwood ; Texas, 
Bush 2 5, Lighthipe. 
Schoenocrambe lintfolium (Nutt.) Greene, British Columbia, 
? Macoun. 
Sisymbrium officinale (L). Scop., Indiana, Arthur, Olive, Under- 
wood, Wilson; Massachusetts, Farlow (N. Am. Fungi 
2046) ; Missouri, Bartholomew (Fungi Columb. 2771) ; New 
Jersey, Halsted (Ec. Fungi 259a); New York, Underwood 
270a, Nova Scotia, Robinson 463a; Ontario, Dearness 
(Econ. Fungi 2596); Pennsylvania, Britton ; Washington, 
Parker, Piper ; Wisconsin, Pammel. 
Sophia Hartwegiana (Tourn.) Greene, Montana, Anderson, 
Kelsey, , 
Sophia incisa (Engelm.) Greene, Colorado, Baker, Earle & 
Tracy 1 084; Montana, Kedsey. 
Sophia millefolia Rydb., Indiana, Underwood. 
Sophia pinnata (Walt.) Britton, Arizona, * Griffiths (W. Am. 
Fungi 335); Indiana, Underwood (Ind. Fl. 98); Durango, 
Palmer. 
Thlaspi glaucum A, Nelson, Wyoming, Nelson $277: 
Thlaspi Nuttallii Rydb., Montana, Blankinship. 
