CATALOGUE OF CANADIAN PLANTS. 257 



A very abundant species, ranging from the Maritime Provinces to 

 British Columbia, and northward to near the Arctic Circle. Pictou, 

 N.S. (McKay,) Port Mulgrave, N.S. (Ball.} Cape Blomidon, N.S. 

 (Lawson.} North Mountain, Annapolis N.S., and Whycocogmah, 

 Cape Breton. (Macoun & Burgess.) Truemanville, N.S. (H. True- 

 man.) Rather common in New Brunswick. (Fowler.} Ste. Anne 

 River, Gaspe", Que. (Porter.} Isle of Orleans, Que. (St. Cyr.} Rocky 

 woods, Jupiter River, Aiiticosti, Que. ; north shore of Lake Superior 

 at Red Rock, Nepigon, Thunder Bay, and up the Kaministiquia 

 River, Ont. ; Fort McLeod, Lat. 55, and lower valley of Fraser 

 River, B.C.; rather rare on grassy slopes and in open woods, from 

 Laggan in the Rocky Mountains, Alta., to Donald in the Columbia 

 Valley, B.C., along the line of the C. P. Ry. ; Goldstream, Vancouver 

 Island, and at Agassiz, B.C. (Macoun.} Very abundant in open, 

 boggy woods, and in burnt woods of any kind, all around Lake 

 Mistassini, N. E. Ter. (J. M. Macoun.} Lower slopes of South Koot- 

 anie Pass, Rocky Mountains, Lat. 49. (Dawson.) Oxford House, 

 Keewatin. (McTavish.) Common in rich woods about Victoria, and 

 in other parts of Vancouver Island, B.C. (Anderson.) One of the com- 

 monest ferns in western Quebec and south-western Ontario. (Macoun, 

 Burgess, Fletcher, &c.) Banff, Rocky Mountain Park. . (J. Smith.) 



CXXI. FILICES. FERN FAMILY. 



740. POLYPODIUM, Linn., Gen. PI. No. 1179. 



(POLYPODY.) 



(2976.) P. vulgare, Linn., Sp. PI., 1544. Michx., Fl. Bor.-Am., ii., 271. 

 Pursh, Fl. Ari. Sept., ii., 658. Lawson, Can. Nat., i., 268. Watt, 

 Can. Nat., iv., 363. Macoun & Burgess, Trans. Roy. Soc. Can., 

 ii., Sect, iv., 180. Burgess, Trans. Roy. Soc. Can., iv., Sect, iv., 10. 



P. vulgare, Linn., var. Americanum, Hook., Fl. Bor.-Am., ii., 258. 

 P. Virginianum, Linn., Sp. PL, 1545. Pursh, Fl. Am. Sept., ii., 658. 



A rather variable species as regards the shape and degree of division 

 of the frond and of its pinnae. Commonly found on rocks exposed or 

 shaded, but sometimes on dry banks or old logs, and occasionally on 

 growing trees, in dense woods. It ranges from the Atlantic to the 

 Pacific, extending northward to Nelson and Slave rivers, and pro- 

 bably to the Arctic Circle. Of very general distribution through- 



