Canadian Filicinece. ,fj 



4. Intermedia Ckll. 

 a $ pallida. 



C. Yellow forms. 



5. Eriphyle Edw. Ctype. ) 



6. Autumnalis Ckll. 



In conclusion, I may say that I shall be greatly indebted to 

 anyone who will send me specimens of this species from any 

 locality, with date of capture and other particulars appended, for 

 the further study of its variation. T. D. A. Cockei^ell. 



West Cliff, Custer Co., Colorado, March 9, 1888. 



CANADIAN FILICINEy^. 



In the ' Transactions of the Royal Society of Canada,' 1884, 

 Messrs. John Macoun, M. A.; F. L. S.; and Dr. T. J. W. Bur- 

 g^ess, M. B. , gave an interesting exposition of the ferns of Canada. 

 In an introduction which evidences thorough knowledge of this 

 class of plants of the Dominion, and a love of the beautiful in 

 nature, the authors give a succinct history of the Pteridology of 

 the country, and tabulate the then known Canadian species 

 and varieties, according to the classification of Mr. Redfield, as 

 follows : 



First — Cosmopohtan. 



Second — Boreal. 



Third — Appalachian. 



Fourth — Pacific . 



Fifth — New Mexican. 



Omitting the sixth class, — Tropical, — and adding a class 

 showing such of the Canadian species as are peculiar to North 

 America. 



Of the sixty-four species and varieties tabulated, as known to 

 grow in the Dominion, we find four that are 'Cosmopolitan,' or 

 widely distributed over the globe, in temperate and tropical 

 regions; twenty-three in the second class, which inhabit the north- 

 ern regions of the globe; twenty-six in the third class, extending 

 though the hilly regions of the United State east of the Miss- 

 issippi, northward into Canada; some of them also in the Old 

 World; ten in the fourth class, extending along the Pacific Coast, 

 from California to Alaska; one species (Cheilanthes lanuginosa, 

 Nutt.) is included in the fifth class; twenty species are peculiar to 

 North America. 



In a 'Synopsis of Canadian Ferns and Filecoid Plants,' by 

 George Lawson, published in 1864, the number of ferns, includ- 

 ing Ophio-glossacese recorded, was fifty. 



In the work under consideration, there are sixty-four species, 

 and nine distinct varieties, which are distributed in five botanical 

 areas, namely: 



/^zW/— Atlantic provinces and Eastern Quebec- 



