FERN FLORA OF NEBRASKA 317 



ACKNOWLEDGMENT 



The material on which this paper is based is in the herbarium of 

 the department of botany of the University of Nebraska. This 

 material was largely collected or contributed during the botanical 

 survey of Nebraska conducted by the botanical seminar, an organiza- 

 tion founded and promoted by Dr. C. E. Bessey and his co-workers. 



ANNOTATED LIST OF SPECIES 

 Ophioglossaceae 



Botryrhium virginianum (L.) Svvartz. Grape fern. In rich 

 woods, preferring bluffs and canons, rather common in favorable 

 locations, 



Douglas county: woods near Florence, July 9, 1897, IVm. Cle- 

 burne. 



Sarpy county : Bellevue, open woods, June 3, 1887, IVm. Cle- 

 burne; Bellevue, May 2, 1893, No. 3232, Roscoc Pound and Do Alton 

 Saunders. 



Cass county: Weeping Water, June, 1889, Tom A. Williams. 



Lancaster county: Lincoln, June 30, 1886, No. 6102, woods west 

 of Saltillo, H. J. Webber. 



Thomas county : in woods near Plummer ford, Dismal river, July 

 3, 1893, No. 1467, P. A. Rydbcrg; Halsey, June 18, 1912, Raymond 

 J. Pool and Donald Folsom. 



Dawes county : Belmont, wooded bluffs, July 18, 1889, No. 6103, 

 H. J. Webber. 



Sioux county: Squaw canon, August, 1892, No. 444, Albert P. 

 Woods; Monroe canon, north of Harrison, June 21, 1911, Ray- 

 mond J. Pool and C. V. Williams. 



Botrychixmi neglectum Wood. (Botrychium rafnosum (Roth) 

 Aschers.) Franklin county; one specimen in the herbarium, col- 

 lected by E. M. Hussong, in August, 1895, copses and meadows on 

 Mr. Ewing's farm, one mile northeast of Franklin, not abundant, 

 No. 4689. It is labeled Botrychium ternatuw australe. 



Osmundaceae 



Osmunda regalis L. Royal fern. Flowering fern. Franklin 

 county : in original prairie in Republican river valley, near Franklin. 

 May 5, 1896, No. 6776; also one and one-half miles southwest of 

 Franklin, near Ashby's mill and on low ground near the river, June, 

 1896, No. 4693, both specimens collected by E. M. Hussong. 



Osmunda claytoniana L. One specimen, No. 7516, without definite 

 locality, and doubtfully referred to Nebraska. 



