THE FERX BULLETIN 



37 



form of this species with short thick spikes from 

 high latitudes described as L. clavatuni niega- 

 stachyvn. 



Greene, F. C. Fcnis of the Bad Lands. Fern Bul- 

 letin. Ja. 1910. — A list of five species. 



Prescott, A. The Lady Fern. Fern Bulletin. Ja. 

 1010. 



Scoullar, Mrs. A. E. Poly podium vulgar e f. bifido- 

 cristatum. Fern Bulletin. Ja. 1910. 



Vickers, E. W. The Pinnaiifid \Spleenwort in North 

 Eastern Ohio. Fern Bulletin. Ja. 1910. — An ex- 

 tension of range into Mahoning County. 



Vickers, E. W. List of the Ferns of Mahoning 

 County. Ohio Naturalist, F. 1910. 



Pteridographia. Fern Bulletin. Ja. 1910. Game- 

 tophytes of Botrychium ; a correction; Pellaea 

 atropurpurea var. Bushii; Nephr odium niarginalc 

 f. Davenportii ; Asplenium ebenoides; A new phase 

 of Fein Study. 



