254 . Cheney—Flora of the Lake Superior Region. 
343. Preissia liemispha&rica ;, Cogn. 
Grand Marais. 
344. Eiccia fluitans , L. 
Barron. 
345. Eiccia natans, L. 
Ely. 
Madison, Wis., Feb. 22, 1893. 
