266 GEOLOGICAL SURVEY OF CANADA. 



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

 Yale. B.C. {Dawson.) Harrison Lake, Kootanie Distiict, 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 chieflj- confined to the Province of Ontario. Vandreuil, 

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

 Ont. (Billings.) In a thin laj-er 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 Rail- 

 way, nine miles east of Belleville, and Gib.son Mountain, a mass of 

 metamorphic rock, Prince Edward Co., foui- 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. Pui-sh, 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. Cyr.) Open woods, " The Mountain," 

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

 frequent in rich woods. Prince Edwai-d 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. acrosHchoides, 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. Occui-s in rich woods, and is 



