1910] 
BRIEFER ARTICLES 
461 
Professor Rotrs and the Department of Agriculture, which has kindly 
been placed at our service, shows that Professor Roirs at Clemson in 
1901 noted the ascigerous stage of Sclerotium Paspali Schw. on P. 
Fic. 2.—Sclerotia 
of C. Paspali upon 
the host, enlarged. 
dilatatum, and 
further observed 
that the ascospores 
were disseminated 
largely by beetles, 
principally of the 
family Carabidae, 
which 
over the ground 
came in contact 
with the spores, 
and later in seek- 
G. 3- 
from which to fly germinated: 
Pas palit. 
culms, over the pistils, and 
thus bring about infection of 
the ovaries. 
Since the two species of 
discussion 
heretofore described, 
from the only Claviceps upon 
Paspalum (C. lutea A. Mall.), 
and from each other in many 
essential characters, promi- 
nently so in length of stipe 
and size of perithecia and 
spores, we herewith propose 
them as new species; the 
small-spored form as C. Paspalt; 
the large-spored form as C. Rolfsii. 
The relation of these two species to Sclerotium Paspali 
chw. is not definitely known. 
associated with what has heretofore been known as 
S. Paspali Schw. It seems probable, therefore, that 4,3;. 
two sclerotial forms very closely resembling each other 
Both of them are 
—Sclerotia of C laviceps 
QC. Rosh: ho 
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Fic. 4.—Perithecia of 
C. Rolfsii; 
as in fi 
magnification 
Fic. 
thecia of C. Pas- 
magnifica- 
tion as in fi 
