IOWA ACADEMY OF SCIENCES. 149 



'rocks of the Wisconsin river, in the vicinity of Kilbourn 

 City, where it is found on the more exposed rocks. 



Southwestern Wisconsin. La Crosse, "sandstone rock. 

 Tamarack swamp" — Pdiiuiicl. 



Southeastern Minnesota: Pine Creek — Pammel. 



]Voo(hi(i obtusa Torr. Cat PL in Geol. Ptep. N. Y. 195. LS40. 



Quite widely distributed in eastern Iowa, with Pohjpo- 

 iUiDH rulf/rnr, never abundant. It is more abundant in 

 southeastern Minnesota, La Crosse, Vernon, Trempleau 

 and Vernon counties, Wisconsin. Here it is always found 

 on sandstone rocks. 



Iow^a: Allamakee County, Yellow River, one mile below 

 Ion— £". Orr; Lebanon — Sample; Eldora — Frazier; Ledges, 

 Boone County — Faiiuncl, Combs and Miss F. Church; 

 Dubuque — Pammel; Iowa City — Hitchcock; Winneshiek 

 €ounty — Leu- is; Muscatine County — Beppert. 



Southwestern Wisconsin: La Crosse, "on sandstone 

 rock, tamarack swamp" — Pammel; La Crosse — Pammel. 



Woodsia scopulina D. C. Eaton, Can. Nat. 2: 90. 1865. 

 Iowa: Lyon County — Shimek. 



SUBORDER OSMUNDACE.E. 



Osmunda regalis L. Sp. PI. 1065. 1753. • 



This is rare in Iowa, though frequent in Houston county, 

 Minnesota, and La Crosse County, Wisconsin; found in 

 moist meadows, along streams and in tamarack swamps. 



Iowa: Muscatine County — Reppert. 



Southeastern Minnesota: Houston County — Pammel. 



Southwestern Wisconsin: La Crosse — Pammel. 



Osmunda CUujtoniana L. Sp. PI. 1066. 1753. 



This species is more widely distributed than any of the 

 other species, occurring in deep, rich woods, frequently 

 attaining a height of four feet. 



