18G4.] LAWSON ON CANADIAN FERNS. 277 



J. K. M'Morine, M.A. ; St. Joachim, Abb^ Provancher ; London, 

 W. Saunders. Not a common fern in Canada ; perhaps more 

 pleatiful in the United States. I have a fine series of specimens 

 from Schooley's Mountains (A. 0. Brodiej, and others from 

 Providence. 



[3. serratum. — Lobes of the pinnaB ovate-oblong, approximate, 

 strongly and incisely serrate. This may be regarded as a sub- 

 variety. — Belleville, J. Macoun. 



[_A. montanum^ Willd., which extends along the Alleghanies, has 

 not yet been found in Canada, but may possibly occur. It grows 

 on clifiB.] 



[J. Ruta-muraria, Linn. — The wall-rue, a small species, which 

 srows in the crevices of limestone cliffs in the Northern States, 

 and is common on stone walls and old buildings in Britain, is to 

 be looked for in Canada.] 



Athyrium. 



A. Filix-foemiria, R. Br. — Frond ample (1-3 feet long), broadly 

 oblong-lanceolate, bipinnate ; pinnae also lanceolate ; pinnules ovate- 

 lanceolate or oblong, incisely toothed. Grows in large tufts, the 

 fronds delicate, of a bright green hue. Lady Fern of the poets. 

 Athyrium FiUxfoemma^ E. Br., Spreng., Roth., Hook., Moore, 

 &c. Aspidium Filix-foemina, Swartz, Pursh, Beck. Asjndinm 

 asplenioidcs, Swartz, Willd., Pursh. Asplenium Athyrium^ Schkr. 

 Asplenium Michauxii, Spreng. Asplenium Filix-foemina ^ A. 

 Gray, Man., p. 595. Ntphrodium asplenioides and Filix-fceniina^ 

 Michx. AspUnium angustvm, Willd., Pursh. — Common in the 

 woods near Kingston, Toronto, Trenton, &c. ; Peche River, 

 Ottawa, Dr. M'Gillivray; Temiscouata, Chippawa and Maiden, 

 P. W. Maclagan, M.D. ; Belleville, moist woods, very common, 

 several varieties, J. Macoun ; Kamsay, Rev. J. K. M^Morine, 

 M.A. ; mouth of the Awaganissis Brook, Gulf of St. Lawrence, 

 C. E., and Schibwah River, Lake Superior, R. Bell. jun. ; Cemetery 

 grounds, Hamilton, and on Prince's Island, Judge Logic; Hamil- 

 ton's farm and base of Silver Mt., W. S. M. D'Urban; Mountain 

 Fall, H. B. T., Governor M'Tavish ; Snake Hill River, John C. 

 Schultz, M.D. ; L'Anse a la Barbe, Gasp<^ and L'Orignal, John 

 Bell, B.A. ; St. Tite, Abb(3 Provancher ; London, W. Saunders. 



/3. angustum. — Frond narrow, linear-lanceolate ; pinnae rather 

 crowded ; pinnules not pinnatifid, but incisely toothed, with recur- 

 ved margins ; sori short, curved {Aspidium. angustum, Willd. ?) — 

 Farmersville ; Delta ; Belleville, J. Macoun. 



