A. Trichomanes, Linn., Sp. PL, 1540.
Found in the crevices of shaded rocks, from New Brunswick to British Columbia, but rare. Tattagouche Falls, Gloucester Co., and Green Head, St. John Co., N.B. (Fowler.) Becoming common about St. John, N.B., in moist shady clefts of limestone rocks. (Hay.) Near Tadousac, and at the Falls of Rivière du Loup, Que. ( Watt.) Clefts of shaded rocks at the mouth of Temiscami River, twenty-five miles from the east end of Lake Mistassini, 1ST. E. Ter. (J. M. Macoun.) In a deep gorge on the road from Gasp Basin to Fox River, and near Grand Etang, on sea cliffs at Mount Louis and at the Falls of Ste. Anne des Monts River, and base of Mount Albert, Que.; between Owen Sound and Sydenham Falls, Ont., and also on both sides of the falls; abundant on debris under limestone cliffs within the Bow River Pass, and on a limestone mountain in Peace River Pass, Rocky Mountains. (Macoun.) Amongst broken rocks at Port Simpson, B.C. (Anderson.) Moist shady rocks, Rocky Mountains. (Drummond.)
(2991.) A. Trichomanes, Linn., Sp. Pl., 1540 (in part). Michx., Fl. Bor. - Am., ii., 264. Hook., Fl. Bor. - Am., ii., 262. Swartz, Syn. Fil., 80. Lawson, Can. Nat., i., 274. Provancher, Fl. Can., 715. Watt, Can. Nat., iv., 363.
Macoun & Burgess, Trans. Roy. Soc. Can., ii., Sect. iv., 191.
A. melanocavlon, Willd-, Enum., 1072: Sp. PL, v., 332. Parsh, Fl. Am. Sept., ii., 666.
Of pretty general distribution, in the crevices of moist shaded rocks, from the Atlantic to the Pacific. Hartley Falls, Pirate Harbor, Strait of Canso, and on Gold River near Chester, Lunenburg, N.S. (Ball.) The "Lookout," Cape Blomidon, N.S. (Lawson.) Near Three-Mile House, Halifax, N.S. (Sommers.) Montreal, Que. (Maclagan, St. Cyr.) Chatham Township, Argenteuil Co., Que. (McGord.) Ottawa, Ont. (Fletcher.) Clefts of rocks, Jones' Falls, Leeds Co., and Kingston Mills, Frontenac Co., Ont. (P.G. Scott.) On Guelph dolomites, Little Saugeen River, Durham, Grey Co., Ont. (H. M. Ami.) Lake Medad, Halton Co., Ont. (Logic) Rocks, just below the falls and near the Whirlpool, Niagara Falls, Ont. (Burgess.) East coast of Hudson Bay. ( R. Bell.) Jupiter River, Island of Anticosti; on Mount Louis, and up the Ste. Anne des Monts river, Gaspé, Que.; Shannonville, near Belleville, Ont.; Red Rock, Lake Superior, and westward to the Lake of the Woods; Clearwater River, near Methy Portage, Lat. 57°, N. W. Ter.; along Peace River, within the Rocky Mountains, and in Bow River Pass, Rocky Mountains; crevices of rocks at Sicamous and Agassiz, B.C.; at Departure Bay, and on Mount Benson, Nanaimo, Vancouver
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 River, 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. Boy. 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. Cyr.) Rocky 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 Bail-way, nine miles east of Belleville, and Gibson Mountain, a mass of metamorphic 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. Boy. 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. Rose, Laval Co., Que. (St, Cyr.) 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.) Rich 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. Boy. Soc. Can., ii., sect, iv., 193.
A. acrostichoides, Swartz, Schrad. Journ., ii., 54.
Athyrium thelypteroides, Desv., Prodr., 266. Lawson, Fern Fl. Can., 238.
Rather scarce in the Maritime Provinces, but common in most sections of Ontario and Western Quebec. Occurs in rich woods, and is not known to range west of Lake Superior. Windsor, N.S. (How.) Halifax, N.S. (Lindsay.) Mount Dalhousie, N.S. (McKay.) Strait of Canso; Boylston, Guysborough Co.; and Rawdon, Hants Co.; N.S. (Ball.) Ravine at Whyeocogmah, Cape Breton. (Macoun & Burgess.) Wentworth Station, Cumberland Co., and North Mountains, King's Co., N.S.; near Grand Falls and at Woodstock, N.B. (Jack.) Bass River, N.B. (Fowler.) Fredericton, N.B. (Vroom.) Salmon River, Victoria Co., N.B. (Hay.) Quebec, Que. (Sheppard.) Isle of Orleans and Ste. Rose, Laval Co., Que. (St. Cyr.) Montreal, Lennoxville, and in Argenteuil Co., Que. (McGord.) Richmond and Drummond Co's, Que. (Bothwell.) Very common in South-western Ontario. (Macoun, Logie, Burgess, etc.) Along the Canadian Pacific Railway, north of Lakes Huron and Superior, Ont. (Fletcher.) Current River, Lake Superior, Ont. (Macoun.)
(2995.) A. Filix-foemina, Bernh., Schrad. N. Journ. Bot, ii.} 26 and 48. Provancher, Fl. Can., 716.
Macoun & Burgess, Trans. Roy. Soc. Can., ii., sect. iv., 194.
Athyrium Filix-foemina, Roth, Tent. Fl. Germ., ii., 65. Hook., Fl. Bor. - Am., ii., 262. Lawson, Can. Nat., i., 277; Fern Fl. Can., 238. Watt, Can. Nat., iv., 363.
Nephrodium Filix-foemina, Michx., Fl. Bor. - Am., ii., 268.
Nephrodium asplenoides, Michx., Fl. Bor. - Am., ii., 263.
Aspidium asplenoides, Swartz, Syn. Fil.,60. Pursh, Fl. Am. Sept., ii., 664.
A very variable species which grows in tufts in moist fields and woods. It is common in most parts of British America from the Atlantic to the Pacific. Quite common throughout Nova Scotia. (Ball.) A very common and variable fern in New Brunswick. (Fowler.) Abundant in Prince Edward Island. (Bain.) Very common in Quebec and Ontario. (Lawson, McCord, Macoun, Burgess, St. Cyr, etc.) Common in wooded parts of Manitoba and the North-West Territory, in the Rocky Mountains, and in British Columbia. (Macoun.) Throughout Canada to the Saskatchewan and alpine woods of the Rocky Mountains. (Drummond.)
Var. Michauxii, Mett., Asplenium, 199.
Aspidium angustum, Willd., Sp. PL, V., 277.
Athyrium Filix-foemina, Roth., var. ß., Hook., Fl. Bor. - Am., ii., 262. Asplenium Filix-foemina, var. angustum, D. C. Eaton, Ferns of N. Am., ii., 277. Macoun & Burgess, Trans. Roy. Soc. Can., ii., sect, iv., 195.
This is perhaps the most distinct of the many forms of this fern which have been described. It is less common than the type, but not extremely rare, especially in Ontario. Salt Mountain, Whycocogmah, N.S. (Macoun, Burgess.) Farmersville and Delta, Ont. (Lawson.) Ottawa, Ont. (Fletcher.) Belleville, Ont. (Macoun.) London, Ont. (Burgess.)