12 GEOLOGICAL SURVEY OF CANADA. 



(2234.) P. verticillata, Nutt. Gen. II., 192. 



Arethusa verticiUata, Pursh, FL II., 591. 

 A. medeoloidcf, Pursh, Fl. II., 591. 



Low damp woods, Komoka, Ont. ; rare. (Burgess. Millman.) 

 598. EPIPACTIS, R. Br. 



<2235.) E. gigantea, Dougl. Hook., Fl. II., 202. 

 E. Americana, Lindl., Orchid. 462. 

 Under evergreens, at Osoyoos Lake, B.C. (Dawson.) 



599. ORCHIS, Linn. Gen. 1009. (ORCHIS.) 



<2236.) O. spectablis, Linn. Hook., Fl. IL, 195 ; Pursh, Fl. IL 587. 

 0. humiiis, Michx., Fl. II., 155. 

 Eich low woods, rather rare. Keswick, and at Eel Eiver, Carleton 

 Co., N.B. (Fowler, Cat.) Gomin's wood, Quebec. (St. Cyr.) Vicinity 

 of Montreal, 1821. (Dr. Holmes.) Stewart's bush and other locali- 

 ties near Ottawa, not uncommon. (Fletcher, Fl. Oft.) Miriwin's 

 woods and elsewhere around Pi-escott, Ont. ; common. (Billings.) 

 Eich woods near Belleville, Hastings Co. ; also at Castleton and 

 Campbellford, Northumberland Co., Ont. (Macoun.) Vicinity of 

 Hamilton. (Logie.) Eich woods, London, Ont. (Burgess. Millman.) 



(2237.) O. aristata, Fisch. Hook., Fl. II., 195. 



0. lalifolia, Linn. Rothrock's Alaskan Plants, 456. 

 Ounalashka. (Chamisso vide Hooker.) 



(2238.) O. rotund ifolia, Gray, Amer. Journ. Sci. CXIV., 72. 

 Pui-sh, Fl. IL, 5SS. 



Habenaria roiundifolia, Rich. Gray, Man. Ed. V., 500, Macoun, Cat., 



No. 1773. 

 Platanthtra rulundifolia, LindL Orchid. 2S6. 



Occasionally met with in peat bogs ; commoner westwai-d. Eivi^re de 

 Brig, Anticosti. (Macoun.) In damp woods near Eivi^i-e du Loup, Q. 

 (Thomas.) Mingan Islands, Q. (St. Cyr.) Very abundant in the big 

 swamp, Murray, Northumberland Co., Ont. Dow's f*wamp, near 

 Ottawa. (Fletcher, Fl. Ott.) Lake Mistassini, N.E.T. ; also South 



