26 
IOWA ACADBMY OF SCIENCES 
In connection with the title of this paper we wish to give here full 
credit to the work of Dr. C. H. Churchill of Fort Dodge, who has been 
intimately associated with us in the collecting and identifying of the 
plants here listed and we wish to explain that while Dr. Churchill is 
not yet a member of this Academy, and for that reason wished us to 
present this paper under our names only, yet he is entitled to full credit 
for his share in the work. 
We wish to thank all our friends, both botanists and flower lovers, 
who have helped us in collecting and classifying. We wish especially 
to thank Professors Macbride and Shimek of the Iowa State University, 
Prof. L. H. Pammel of Iowa State College of Agriculture, Prof. Aven 
Nelson of State University of Wyoming and Mr. R. I. Cratty of Arm- 
strong, Iowa, who have kindly assisted us with difficult species. 
The nomenclature of this list follows that of the first edition of Brit- 
ton’s Manual of the Flora of the Northern U.S. and Canada except in the 
case of one or two species not listed in that work. 
Practically all of the species listed herein are represented by specimens 
in the Herbarium of The Webster County Botanical Club of Fort Dodge 
and while we realize that some of these species are far from their homes 
as designated by the range given in the texts, we can only plead that the 
plants are,apparently,not strict respecters of the limits placed upon them. 
SUBKINGDOM PTERIDOPHYTA 
ORDER FILICALES 
OPIIIOGLOSSACEAE. 
Botrychium. 
1. B. virginianum (L.) Sw. Common in rich woods. 
OSMUNDACEAE. 
OSMUNDA. 
2. 0. cinnamonca L. Rare in woods. 
8. 0. claytoniana L. Plenty in woods. 
POLYPODIA CEAE. 
POLYODTUM. 
4. P. vulgar e L. Scarce in rocky places. 
Adtantum. 
5. A. pedatum L. Common in woods. 
6. A. capillus-veneris L. Very rare. 
Cryptogpamma. 
7. C. stelleri (Gmel) Prantl. Rare. {Pellaea stelleri [S. G. Gmel] 
Watt.) 
Asplenium. , . 
8. A. fUix-foemina (L.) Bernh. . 
