274 the canadian naturalist. [-^"g- 



Onoclea. 



0. sensihilis, Linn. — Rhizome creeping ; barren frond broad, 

 leafy, deeply pinnatifid; fertile ones erect, spicate, contracted, 

 doubly pinnate, with small revolute pinnules, enclosing the spor- 

 angia, not at all leafy. Onoclea sensihilis, Linn., Gray, J. Sm., 

 &c. Lowe's Ferns, vol. vi. pi. 1. — In woods along the banks of 

 the Little Cataraqui Creek in great abundance, and in moist 

 swampy places in the woods in various other places about King- 

 ston ; west end of Loughborough Lake ; Becancour, Abb^ 

 Provancher; London, W.Saunders; common in marshy ground 

 at Hamilton, Judge Logic; Lakefield, North Douro, Mrs. Traill; 

 St. John's, C. E., Niagara and Maiden, P. W. Maclagan, M.D. ; 

 Belleville, in low marshy places, abmdant, J. Macoun; Bamsay, 

 Bev. J. K. M^Morine, M.A. ; Amagos Creek, Lake Superior, B. 

 Bell, jun. ; Prescott, common, B. Billings, jun. ; on the river shore, 

 Gatineau Mills, D. M'Gillivray, M.p. ; L'Anse au Cousin, Gasp^ 

 and L'Orignal, J. Bell ; Nova Scotia. This curious fern has 

 been cultivated in England since 1699 ; at Kew, since 1793. It 

 is very variable as regards the outline and subdivision of the barren 

 frond. 



Yar. /?. hipinnata. — Fronds bipinnate ; perhaps not a constant 

 form. Fertile fronds of this variety originated the 0. ohtusilo- 

 hata, Schkr. Peche Biver, and near Cantley, Hull, D. M'Gilli- 

 vray, M.D. 



ASPLENIUM. 



A. Trichomanes, Linn. — Frond small, narrow, linear, pinnate ; 

 pinnae roundish-oblong or oval, oblique, almost sensile, crenate : 

 rachis blackish brown, shining, margined ; sori distant from the 

 midrib. Asplenium Trichomaiies, Linn., Moore, Gray, &c., Lowe's 

 Ferns, vol. v. pi. 22. Asp. melanocaulon, Willd., Pursh. Fl. Sept. 

 Americ, ii., p. 666. Asp. anceps, Lowe. — Inhabits rocky river 

 banks, &c., but is not common in Canada. On rocky banks, at 

 Marble Bock, on the Gananoque Biver ; Mamainse, dry ground 

 on the top of a mountain, B. Bell, jun. ; rocky woodlands west 

 from Brockville, rare, B. Billings, jun.; Montreal, Jones's Falls 

 and Niagara, P. W. Maclagan, M.D. ; Lake Medad, Hamilton, 

 Judge Logic ; Pittsburg, near Kingston, John Bell, B.A. ; foot 

 of Cape Tourmente, Abbe Provancher ; near Belleville, J. Macoun. 



/3. delicatulum. — Frond narrower, pinnae much smaller, thin- 

 ner, and wider apart than in the normal form. This is a sub 



