80 Witson: NortH AMERICAN PERONOSPORALES 
On ALLIONIACEAE: 
Boerhaavia anisophylla A. Gray, New Mexico, Wooton 462. 
? Boerhaavia diffusa L., McComb’s Expedition, New¢berry. 
Boerhaavia erecta L., Florida, Swingle 4139 ; Sonora, Palmer ; 
Jamaica, Harris 6853; St. Croix, Ricksecker got. 
Boerhaavia hirsuta Willd., Texas, * Long (Fungi Columb. 
1605, on “ B. decumbens’) ; Yucatan, Gaumer 309 ; Cuba, 
Britton & Shafer 1 ; Guadeloupe, Duss 2174 ; Porto Rico, 
Goll 536. 
Boerhaavia paniculata Rich., Culebra, Britton & Wheeler 2. 
Boerhaavia spicata Choisy, Arizona, Griffiths 2071; New 
Mexican, Wooton. 
Boerhaavia Xanti S. Wats., Sonora, Palmer. 
Wedelia incarnata (L.) Kuntze, Arizona, Rusby ; New Mexico, 
Skehan 102, Wooton; Texas, Seler rgo1; Utah, Goodding 
809; San Luis Potosi, Schaffner 562. 
Reported from within our limits on the following additional 
hosts: Boerhaavia Sonorae Rose and B. viscosa Lag. & Rodr. 
Type Locatity: Buenos Aires, Argentina, on Boerhaavia 
hirsuta Willd. ; 
_ Disrrisution: Utah to peninsular Florida, southern Mexico 
and the West Indies. Also in South America, Asia and Africa. 
12. Albugo occidentalis sp. nov. 
Soris hypophyllis, subrotundis vel irregularibus, rarius con- 
fluentibus, superficialibus, prominentibus, subflavidis, 1-3 ™™- 
Crassis; conidiophoris cylindraceis, circa 12 X 40/3 conidiis 
flavidis, breviter cylindraceis, 14-20 x 8-16 yp, membrana hyalina, 
ad medium annulo cincta; oosporis in hospitis foliis, soit 
luteo-brunneis, regulariter tenuiterque reticulatis, 5 Op: 
ametro, areolis pentagonis vel hexagonis, circa 2 # crassis. : 
ri hypophyllous, rounded or irregular in outline, sometime 
confluent, superficial, prominent, yellowish, 1-3 mm.; conidio- 
phores cylindric, about 12 x 402; conidia discoid, the mem 
Type in herbarium of the New York Botanical Garden, L. 4 
Underwood & A. D. Selby 108, from the hills about Box Cafiom, 
