284 THE CANADIAN NATURALIST. [Aug. 



the woods east from Hamilton's farm, W. S. M. D'Urban • 

 Montreal, Drs. Maclagan and Epstein ; Hudson Bay Territories 

 near Red River Settlement, Governor M'Tavish; St. Joachim, 

 Abbe Provancher; L'Orignal, J. Bell, B.A. ; London, W. 

 Saunders. In the State of New York the species is common in 

 swamps and wet thickets (Torrey), I have it from West Point, 

 N. Y. In the south, Eaton indicates Florida and northward. 

 Very seldom found with fructification (Pursh). Fertile specimens 

 are not rare with us. The forked veins of the pinnules distin- 

 guish this species from the next. In the Canadian plant, the out- 

 line of the frond is a little diflferent from Scotch and Irish speci- 

 mens, being less narrowed at the base. There are three forms of 

 this species in Canada. The first (a) seems to be the plant of Gray's 

 Manual, the second(/5) is more like the L. Thelypteris of Europe, 

 and the third(y) is intermediate between this species and the next. 



a. puhescens. — Frond somewhat coriaceous densely pubescent 

 or downy throughout. Odessa, Hudson Bay. 



/?. glabra. — Frond thin, herbaceous, glabrous, Montreal, Chel 

 sea, Hichinbrook, &c. 



y. intermedia. — Frond narrowed below, glabrous; stipe slightly 

 elongated (veins forked). Gasp^, J. Bell, B.A. 



L. Nov-Ehoracensis. — Frond lanceolate, narrow at the base, thin 

 and herbaceous, pinnate; pinnae linear-lanceolate, more or less ap- 

 proximate, deeply pinnatifid ; pinnules oblong, usually flat; veins 

 simple (not forked), sori never confluent ; stipe short, rachis, &c., 

 downy, pinnules more or less distinctly ciliate. Lastrea Novebor- 

 acensis, Presl. Polypod'mm Noveboracense^ Linn., Schk. As^pi- 

 dium theh/pteroides, Swartz. Aspiniinn Noveboracense, Willd., 

 A. Gray, Eaton — Pittsburg near Kingston; Lakefield, North Douro, 

 Mrs. Traill ; Mountain side, Hamilton, Judge Logic ; Prescott, 

 common, B. Billings, jun., Mounts Johnson, Montreal, and Beloeil, 

 P. W. Maclagan, M. D. ; Ramsay, Rev. J. K. M'Morine, M.A. ; 

 near Chelsea, D. M'Gillivray, M.D. ; London, but not common, 

 W.Saunders; L'Orignal, J. Bell. This fern belongs exclusively 

 to the American continent. It seems to be more abundant and 

 more distinct in the United States than with us. In Flora Boreali- 

 Americana, Sir William Hooker observed : " The Asjndium 

 Nooeboracense is quite identical with A. ThelypterlsJ^ In the 

 recently-published volume of Species Filicum (which at present 

 I can only quote at second hand), doubts are still expressed as to 

 it being a species really distinct from L. Thelypteris. Mr. Eaton 



