SHEAR: NEW SPECIES OF FUNGI 317 
dial and ascogenous forms has been demonstrated by numerous 
pure cultures from the mycelium and ascospores. A detailed 
account of the life history of this fungus will be published later. 
Ustilago Claytoniae sp. nov. 
Sori in ovaries, protected by the calyx of the host, ovate, flat- 
tened, 2-3 mm. long, forming a dark wine-colored or purplish 
mass ; spores purplish, mostly spherical or subspherical, 11-16 4 
in diameter with prominent winged reticulations 1-2 pt wide by 
2.5 # deep. 
Type collected by Col. T. E. Wilcox, Vancouver Barracks, 
Washington State, April 8, 1903, on Claytonia linearis Dougl. 
(Montia linearis (Dougl.) Greene). Specimen in herbarium of 
National Museum and also in herbarium of the Department of 
Agriculture. This species appears to be related to Ustilago Cal- 
andriniae Clint. 
Sorosporium Montiae Rostr. (1896), found on leaves and stems 
of Montia minor in Denmark, is apparently quite different from 
our species. 
U. S. DEPARTMENT OF AGRICULTURE, 
WASHINGTON, D. C. 
