272 GEOLOGICAL SURVEY OP CANADA. 



common in New Brunswick. (Fowler.) Not rare in Prince Edward 

 Island. (Bain, Macoun.) Quebec and Montreal, Que. (Sh^pard.) 

 L^vis, Que. (St. Cyr.) Eichmond and Drummond Go's, Que. (Both- 

 well.') Mount Beloeil, Que. (^Maclagan.) Ottawa, Ont. {Fletcher.) 

 Prescott, Ont. (Billings.) Kingston and Lakefield, Ont. (Mrs. Traill.) 

 Abundant in pine woods, Seymour, Northumberland Co., Ont. (Macoun.) 

 Low woods and thickets, Toronto, London, Blenheim, Windsor, and 

 Poj-t Cockburn, Ont. (Burgess.) Owen Sound, Ont. (Mrs. Boy.) 

 Gore Bay, Manitoulin Island, Ont. (/. Bell.) 



(3003.) A. ThelypteriS, Swartz, Schrad. Journ., ii., 40; Syn. Fil., 50. 

 Pursh, PI. Am. Sept., ii., 661. Provancher, Fl. Can., 718. Macoun 

 & Burgess, Trans. Eoy. Soc. Can., ii., sect, iv., 201. 



Polyatkhum Thelypteris, Both, Fl. Germ., ill., 77. Watt, Can. Nat., iv., 363- 

 Nephrodium Thelypteris, Desv., M6m. Soc. Linn., vi., 257. Hook. & 



Baker, Syn. Fil., 271. 

 Lastrea Thelypteris, Presl, Tent. Pterid., 76. Lawson, Can. Nat., i., 288 ; 



Fern Fl. Can., 244. 



Common in cedar, tamarack and other swamps, from Nova Scotia 

 westward to Lake Winnipeg. Quite abundant in swamps throughout 

 Nova Scotia. (Ball.) Bather common in wet marshy places in New 

 Brunswick. (Fowler.) Frequent in Prince Edward Island. (Bain, 

 Macoun.) Common in Quebec. (McCord, Provancher, Maclagan, Parsons, 

 St. Cyr, &c.) Abundant in Eastern and Central Ontario. (Macoun, 

 Fletcher, Billings, Logie, Burgess, &c.) Muskoka and Parry Sound, Ont. 

 (Burgess.) Near Eed Eiver Settlement, Man. (McTavish.) • 



(3004.) A. OreopteriS, Swartz, Schrad. Journ., ii., 35; Syn. Fil., 50. 

 Burgess, Trans. Eoy. Soc. Can., iv., sect, iv., 14. 



A. montanum, Milde, Fil. Eur. et Atlant, 115. 



Lastrea Oreopteris, Presl., Tent. Pterid., 76. 



Lastrea montana, Moore ; Lawson, Fern Fl. Can., 243. 



Occurs In patches on wet ground on mountain slopes and in rocky 

 ravines,, and is limited in Canada, so far as known, to British Columbia. 

 At an altitude of 6,500 feet on Avalanche Mountains, at the summit 

 of the Canadian Pacific Eailway pass through the Selkirk Eange. 

 (Macoun.) Port Simpson, opposite the southern extremity of Alaska. 

 (Anderson.) 



(3005.) A. cristatum, Swartz, Schrad. Journ., ii., 37 ; Syn. Fil., 52. 

 Pursh, Fl. Am. Sept., ii., 661. Hook., Fl. Bor.-Am., ii., 261. 



