1865.] CATALOGUE OF CANADIAN CRYPTOGAMS. 401 



alpina (Blunt-leaved Woodsia). 



Woodsia alpina Newman, Hist, of Br. Ferns, ed. 3, p. 79 ; 

 Moor, Nature-printed Br. Ferns, pi. cvi; (Not of 

 S. F. Gray, who included W. Ilvensis under this name) ; 

 Woodsia hyperborea, R. Br., Hooker's Br. Ferns, t. 7. 

 Being in doubt as to the relation which the plants 

 hitherto placed here, bear to the preceding and suc- 

 ceeding species, I omit further notice of them for the 

 present. 



glabella (Hairless Woodsia). 



In clefts of moist rocks. General from near Quebec east- 

 wards, but scarce.* 



Cystopteris (The Bladder Ferns). 



bulbifera (Common Bladder-fern). 



In moist rocky woods, sometimes in swamps ; general, 

 and very common. 



fragilis (Slender Bladder-fern). 



On rocky banks, &c. A very variable fern ; general, and common. 

 Aspidium (The Shield Ferns). 



Thelypteris (Meadow Shield-fern). 



In swamps. A variable fern ; general from Quebec west- 

 wards, and common. 



1. Woodsia RUFiDULA=:Nephrodiu?n rufidulum Wichx.=Jlcrostichu7n II- 

 vense Linn. 7=Woodsia Ilvensis of Gray's Manual. General through- 

 out Canada and often common. 



2. Woodsia alpis az= Jlcrosiichum alpinum Bo\ton= Woodsia hyperborea 

 Hook., Br. Ferns, t. 7.= W. alpina Moor, nat. pr. Br. Ferns, pi. cvi ; (not 

 of Newman). May prove not to be specifically distinct from No. 1, 

 though the aspect of the plant is different. Occurs occasionally in eastern 

 Lower Canada, mostly in the neighborhood of waterfalls. 



3. Woodsia HYPEWBOREA=rfcrostichum hyperboreum Liljeblad. Not yet 

 found in Canada. 



4. Woodsia glabella R. Brown, Hook. Fl. Bor. Am. t. ccxxxvii.= IF. 

 alpina Newman, Br. Ferns, ed. 3, p 79. Doubtfully distinct from No. 3. 

 General in Lower Canada from near Quebec eastwards. 



Mr. Bentham would probably reduce all these to varieties of No. 1. 

 I incline to recognize two species, Nos. 1 and 3; while some Pteridol- 

 ogists would recognise all four. 



* I collected this fern in the month of August last near the River 

 Saguenay, and elsewhere in eastern Lower Canada; I have also received 

 from Dr. Thomas specimens collected by him at Riviere-du-Loup. Our 

 Canadian plants are very closely allied to, if specifically distinct from 

 Woodsia hyperborea (Leljeblad), as exemplified by a Lapland specimen 

 (legit R. F. Frishot) in the Herbarium of McGill University. 



Vol. ii. aa No. 5. 



