286^ THE CANADIAN NATURALIST. ' [^"^^g 



Kingston ; also not rare in the woods of the Midland District of 

 Canada generally; Upper Rideau Lake; woods around Toronto, 

 Rev. Dr. Barclay; Stanfold, Abbe Provancher; L'Orignal, 

 J. Bell ; London, W. Saunders ; Sulphur Spring, Hamilton, Judge 

 Logic, Prescott, common, B. Billings, jun; Nicoletand St. Valentine, 

 C. E., and Chippawa, C. W., P. W. Maclagan, M.D.; Btlleville 

 very common in rocky woods, as in Hop Garden, J . Macoun ; 

 Bamsay, Rev. J. K. M'Morine, M.A. ; hills and woods, portage to 

 Bark Lake, W. S. M. D'Urban ; Gilraour's Farm, Chelsea, D. 

 M'Gillivray, M.D, ; Osnabruck and Prescott Junction, Rev. E. M. 

 Epstein. This species is exclusively American. 



[j8. incisum, pinnse strongly serrate or incised into lobes. Aspi- 

 dium }Schweinitzii, Beck. This form, which I have from Schooley's 

 Mountains, &c. (A. 0. Brodie), will no doubt be found in Canada.] 



Cystopteris. 



C./ragiUs, Bernhardi — Fronds delicate, green, lanceolate in out- 

 line, glabrous, bipinnate ; pinnae and pinnules ovate-lanceolate or 

 oblong ; the latter obtuse, incisely toothed, thin and veiny ; sori 

 large; stipe dark purple at the base. Cystopteris fragilis, Bern- 

 hardi, Hook., Bab., Moore, Newra., A. Gray. Polypodium fragile^ 

 Linn. Cystopteris orientalis, Desyaux. Folypod. viriduluon, DesY. 

 Athyrium fragile, Sadler. Cyathea/ragilis, Sm. Ccynapifolia and 

 C. anthriscifolia, Roth. Cysteafragilis, Sm. Cydopteris, S. F. 

 Gray. — Rocky woods and cliffs about Kingston, in various places 

 but not abundant; Farmersville ; Mountain side, Hamilton, on 

 moist rocks. Judge Logic; rocks by the bay-shore,L'Anse au Cousin 

 and Dartmouth River, Gaspe, John Bell, B.A. ; Mirwin's woods, 

 Prescott, common, B. Billings, jun. ; Montreal and Jones's Falls, P. 

 W. Maclagan, M.D. ; rocky bank of the Moira, rather rare, J. 

 Macoun ; Ramsay, Rev. J. K. M'Morine , M.A. ; camp at base of 

 Silver Mount, on rocks, also River Rouge, abundant; De Salaberry, 

 west line, and at Black Lead Falls, W. S. M. D'Urban; St. Jo- 

 achim, Abbe Provancher ; Grenville, C. E. John Bell, B. A.; 

 London, W. Saunders. In Dr Hooker's valuable Table of Arctic 

 Distribution this plant is indicated as a Canadian species that 

 does not enter the United States, which, I presume, arises from a 

 misprint, as the species is not uncommon in the Northern States, 

 and extends south to the mountains of Carolina. The delicate 

 C. tenuis is the form known in the south, but in Canada we have 

 the stout typical European forin of C fragilis. 



