66 
Witson: NortH AMERICAN PERONOSPORALES 
Brassica arvensis (L.) B.S. P., South Dakota, Chaney. 
Brassica campestris 1.., Massachussetts, Humphrey (Econ. 
Fungi 407). 
Brassica integrifolia (West.) O. E. Schultz, St. Croix, Rick- 
secker 3306. 
Brassica nigra (L.) Koch, Alabama, Carver ; Illinois, Burrill ; 
Indiana, Olive ; Iowa, Arthur ; Nebraska, Williams ; New 
Jersey,* Halsted (Econ. Fungi 256); South Dakota, 
Griffiths (W. Am. Fungi 46). 
Brassica sp., Wisconsin, Pammel. 
Bursa Bursa-pastoris (L.) Britton, California, Copeland ; Illinois, 
Earle, Seymour ; Indiana, Underwood 3734 (Ind. Fl. 98a), 
* Wilson ; lowa, Macbride ; Kansas, Baker (Fungi Columb. 
2108); Massachusetts, Farlow (N. Am. Fungi 2042); 
Michigan, Beal (Econ. Fungi 2574); Missouri, Galloway, 
Galloway & Tracy, Trelease ; New Jersey, Halsted (Econ. 
Fungi 257a), Stevens ; New York, Arthur, Britton, Under- 
wood, Underwood & Cook (Illust. Fungi gr); Ohio, Kedler- 
man (Ohio Fungi 722) ; Ontario, Dearness (Fungi Columb. 
133); Wisconsin, Pammel. 
Camelina microcarpa Andrz., Ohio, * Tyler (Ohio Fungi 63, on 
‘“C. sativa (L.) Crantz”’) ; Virginia, Murrill. 
Cardamine bulbosa (Schreb.) B. S. P., Indiana, Olive. 
Chetranthus asper Nutt., Oregon, Suksdorf 220. 
Cheiranthus pacificum Sheldon, Oregon, Sheldon. 
Dentaria diphylla Michx., New York, Shear (N. Y. Fungi 
199), Underwood. 
Dentaria laciniata Muhl., South Carolina, Rolfs 1687. 
Hesperis matronalis L., Ontario, Dearness. 
lodanthus pinnatifidus (Michx.) Steud., Indiana, Arthur. 
Lepidium densiflorum Schrad., Nevada, Baker 1087. 
Lepidium virginicum L., Florida, Hume 34; Mlinois, Earle ; 
Indiana, Arthur, Underwood ; Kansas, Bartholomew (Fungi 
Columb. 2770); Nebraska, Williams ; New York, Under- 
wood ; Mississippi, Tracy; South Carolina, Ravenel 
(Fungi Car. 4: 93), Rolfs 1661; Texas, Ravenel 2914; 
Bahama Is., Hitchcock (on “ Cakile maritima Scop.?”’); 
Bermuda, Brown & Britton. 
