Synopsis of Canadian Ferns and Filicoid Plants. 109 



P. Phegopteris, Linn. — Frond acutely triangular in outline, acumi- 

 nate, pinnate ; the pinnae linear- lanceolate, pinnatifid, lowest pair de- 

 flexed ; lobes of the pinnae oblong, scythe-shaped, obtuse, approximate, 

 entire ; rachis hairy and minutely scaly to the apex of the frond, as well 

 as the mid-ribs of the pinnae, P. Phrgopteris, Linn., A. Gray, Moore, 

 &c. Phegopteris vulgaris, J. Sm. P. connectile, Michx., Pursh Fl. 

 Am. Sept., ed. 2, vol. ii. p. 659. — Canada, Hooker ; Black Lead Falls 

 and De Salaberry, west line, W. S. M. D'Urban ; Ramsay, E.ev. J. K. 

 M'Morine, M.A. ; Nicolet, P. W. Maclagan, M.D. ; Prescott, damp 

 woods, not common, Osgood Station of the Ottawa and Prescott Rail- 

 way, also Gloucester, near Ottawa, growing on the side of a ravine, and 

 Chelsea, C.E., B. Billings, Jr ; opposite Grand Island, Lake Superior, 

 R. Bell, jr. ; L'Orignal and Harrington, J. Bell, B.A. 



P. Dryopteris, Linn. — Frond thin, light-green, pentangular in outline, 

 consisting of three divaricate triangular subdivisions, each of which is 

 pinnatCj with its pinnae more or less deeply pinnatifid ; pinnules oblong, 

 obtuse, nearly entire ; stipe slender and weak, not glandulose. P. Dry- 

 opteris. Linn., A. Gray, Moore, &c. Phegojyteris Dryopteris, J. Sm. — 

 Abundant in the woods around Kingston ; Ramsay, Rev. J. K. M'Morine, 

 M.A. ; very common in woods about Prescott, B. Billings, jr. ; Montreal 

 and Nicolet Rivers, C.E., P. W. Maclagan, M.D. ; Belleville, common 

 in the woods, J. Macoun ; opposite Grand Island, Lake Superior, R. 

 Bell, jr. ; River Rouge, Round Lake, Montreal, De Salaberry, west 

 line, and Black Lead Falls, W. S. M, D'Urban ; Newfoundland, La- 

 brador; Somerset and St Joachim, M. L'Abbe Provancher ; L'Orignal, 

 J. Bell, B.A. 



Var. (3. erectum. — Frond erect, rigid, with a very stout and very long 

 glabrous stipe (18 inches long) ; beech woods at Collins's Bay, near King- 

 ston, with the normal form. This variety resembles P. Robertianum in 

 general aspect, but is not at all glandulose. 



P, Robertianum, Hotfman. — A stouter plant than P. Dryopteris ; 

 fronds more rigid and erect; rachis, &c , closely beset with minute- 

 stalked glands. P. Robertianum, Hotfman, Moore, &c. P. calcareum,, 

 Sm. p. Dryopteris, var. calcareum, A. Gray. — Canada, Moore and 

 other authors ; United States, Gray and others. This species is com- 

 monly spoken and written of as a Canadian Fern. Not having had an 

 opportunity of seeing Canadian specimens, I cannot cite special habitats. 

 The minutely glandulose rachis serves at once to distinguish it. 



Adiantum. 



A. pedatum, Linn. — Stipe black and shining, erect, forked at top, 

 the forks secundly branched, the branches bearing oblique triangular- 

 oblong pinnules. A. pedatum. Linn., A. Gray, &c,, Lowe's Ferns, 

 vol. iii. pi. 14. Abundant in vegetable soil in the woods around King- 

 ston ; woods around the iron mines at Newboro-on-the-Rideau ; Farmers- 

 ville ; Toronto ; Montreal, Chippawa, Wolfe Island, and Maiden, P. W. 

 Maclagan, M.D. ; Belleville, in rich woods, abundant, J. Macoun ; 

 Ramsay, Rev. J. K. M'Morine, M.A. ; Ke-we-naw Point, R. Bell, jr. ; 

 at the Sulphur Spring, and common everywhere about Hamilton, Judge 



