Oct. 1902] 
North American Ustilagineae 
155 
* Eudoassansia. 
DOASSANSIA EPILOBII Farl.—Host: Epilobium alp- 
num, N. H. (type). 
DOASSANSIA RANUNCULINA Davis.—Host: Ranun¬ 
culus multifidus, Wise. (type). 
DOASSANSIA SAGITTARIAE (West.) Fisch.—Hosts. 
Sagittaria arifolia, Ill.; S. graminea, Ill.; S. heterophylla, Wise.; 
S. variabilis, Kans., Mo., Ohio, N. Y., Wise.; Sagittaria sp., 
Mo., Verm., Can. 
DOASSANSIA ALISMATIS (Nees.) Cornu.—Host: 
Alisma plantago, Calif.?, Ia., Kans., Minn., Mo., Neb., Wise. 
Alisma plantago, Calif.?, Ia., Kans., Minn., Mo., Neb., N. Y. 
Wise. 
DOASSANSIA OPACA Setch. — Host: Sagittaria variab¬ 
ilis, Conn., Ill., Mass, (type), R. I. 
** Pseudoassansia. 
DOASSANSIA OBSCURA Setch.—Host: Sagittaria var¬ 
iabilis, Conn, (type), Mass, (type), Wise. 
*** Doassansiopsis. 
DOASSANSIA OCCULTA (Hoffm.) Cornu.—Doassansi¬ 
opsis occulta Diet., Nat. Pflanzenf. i 1 ** :2i. 1897. 
Hosts: Potamogeton pennsylvanicus, Conn., N. Y.; Pota- 
mogeton sps., Ill. ?, Kans. 
DOASSANSIA OCCULTA var. FARLOWII (Cornu.) 
Setch.—Hosts: Potamogeton natans, Can.; P. pennsylvanicus, 
Verm.; P. perifoliatus var. lanceolatus, Can.; P. pusillus, Can.; 
P. vaseyi, Can. (type). 
There is some question whether the variety is distinct. It 
has been studied especially only on Potamogeton vaseyi. 
DOASSANSIA MARTIANOFFIANA (Thum.) Schrot.— 
Doassansiopsis martianoffiana Diet., Nat. Pflanzenf. i 1# *:2i. 
1897. 
Hosts: Potamogeton natans, Mass.; Potamogeton sps., 
Conn., Ill., N. Y., Wise., Can. 
DOASSANSIA DEFORMANS Setch.—Doassansiopsis de¬ 
formans Diet., Nat. Pflanzenf. i 1# *:2i. 1897. 
Hosts: Sagittaria variabilis, Conn, (type), Ill., Mass., Mo., 
R. I., S. Dak., Wise., Can.; S. variabilis var. angustifolia, Ill.; 
Sagittaria sps., Fla., Tex. 
