266 GEOLOGICAL SURVEY OP CANADA. 



Island. (Macoun.) Great Shuswap Lake and Cascade Mountains, near 

 Yale, B.C. (Dawson.) Harrison Lake, Kootanie District, and on 

 Mount Isonhailim, near the mouth of the Cowichan Eiver, Vancouver 

 Island, B.C. (Anderson.,) Canada to the Saskatchewan. (Richardson.) 



(2992.) A. ebeneum, Ait., Hort. Kew., ed. i., iii., 462. Hook., 

 Fl. Bor.-Am., ii., 263. Swartz, Syn. Fil., 79. Provancher. Fl. Can., 

 716. Lawson, Can. Nat., i., 276. Macoun & Burgess, Trans. Eoy. 

 Soc. Can., ii., sect, iv., 192. 



A. trichomanoides, Michx., Fl. Bor.-Am., ii., 265- 



A platyneuron, Oakes in Lawson, Fern Fl. Can., 237. 



Very rare, and chiefly confined to the Province of Ontario. Vandreuil, 

 Que., near the border of Ontario. (St. Gyr.) Eocky woods, Brockville, 

 Ont. (Billings.) In a thin layer of mould covering the rocks at Jones' 

 Falls, Leeds Co., Ont. (P. G. Scott.) Crevices of Laurentian rocks a 

 little to the north of Shannonville Station on the Grand Trunk Eail- 

 way, nine miles east of Belleville, and Gibson Mountain, a mass of 

 metam orphic rock, Prince Edward Co., four miles south of Belleville, 

 Ont. (Macoun.) Point Abino, Lake Erie, Ont. (Day.) 



(2993.) A. angustifolium, Michx., Fl. Bor.-Am., ii., 265. Swartz, 

 Syn. Fil., 76. Pursh, Fl. Am. Sept., ii., 666. Lawson, Can. Nat., i., 



275. Macoun & Burgess, Trans. Eoy. Soc. Can., ii., sect, iv., 192. 



Is limited in its distribution to Quebec and Ontario, where it is found 

 in low, rich woods. Nun's Island, Montreal, Que. (Parsons.) Ste. 

 Eose, Laval Co., Que. (St. Gyr.) Open woods, " The Mountain," 

 Montreal, Que. (McCord.) Abundant in McKay's Woods, Ottawa; 

 frequent in rich woods, Prince Edward Co., and in rich soil in low 

 woods along Cold Creek, Brighton, Northumberland Co., Ont. 

 (Macoun.) Low woods up the Don Valley, Toronto; cedar swamps 

 and low rich woods, London, and low woods, Lucknow, Bruce Co., Ont. 

 (Burgess.) Eich woods, Amherstburg, Ont. (Maclagan.) 



(2994.) A. thelypteroides, Michx., FL Bor.-Am., ii., 264. Swartz, 

 Syn. Fil., 82. Pursh, Fl. Am. Sept., ii., 667. Hook. & Baker, 

 Syn. Fil., 226. Provancher, Fl. Can., 716. Lawson, Can. Nat., i., 



276. Macoun & Burgess, Trans. Eoy. Soc. Can., ii., sect, iv., 193. 



A. acrostichoides, Swartz, Schrad. Journ., ii,, 54. 



Athyrium thelypteroides, Desv., Prodr., 266. Lawson, Fern Fl. Can., 238. 



Eather scarce in the Maritime Provinces, but common in most sec- 

 tions of Ontario and Western Quebec. Occurs in rich woods, and is 



