Notes on Ustilagines. 
WILLIAM ALBERT SETCHELL. 
WITH PLATE XVIII. 
DOASSANSIA OPACA Setchell occurs on Sagittaria varia- 
bilis at Providence, R. I., and at New Haven, Conn. 
D. occutta (Hoffm.) Cornu has been collected on Potamoge- 
ton Claytonit at Cold Spring Harbor, N. Y., by Mr. Thomas 
Morong and at Bridgeport, Conn., by the writer. 
abundance by the writer in Twin lakes, Salisbury, Conn., 
iN a pool near North Haven, Conn., and in lake Whitney 
near New Haven, Conn. The species of Potamogeton have 
“n carefully determined for these specimens but they 
S far as the information at present is concerned 
$ to be good reason for still keeping it distinct from 
- The two species have in common the structure 
Sorus and similar host-plants. I have, however, 
“+ 48 Shown by Prof. Peck’s specimens, as well 
difference ; 
N the two. 
distrib ar or ANS Setchell has proved to be of rather wide 
i aan in the United States. It has been collected in 
La 4 m4 Rev. C. H. Demetrio and in South Dakota by Mr. 
: illiams. For specimens from these localities I am 
0 ndness of Dr. O. Pazschke and Prof. W. . 
“ew H. ven, . collected it near Providence, R. I., an 
a the 
betwee 
light. Sia intermedia, sp. nov. — Spot inconspicuous, 
'g Yellow to brownish, strep. one-fourth to one-half inch 
