90 GEOLOGICAL AND NATURAL HISTORY SURVEY OF CANADA. 



(344.) O. Schimperi, Hamm. 



0. fallax, Schimp. ; Lesq. & James, Mosses of N. America, 171. 



Not uncommon on trees at Ottawa ; on fence rails at Carleton Place 

 and on trees on Massassagua Point, Bay of Quinte, Ont. (Macoun.) 



(345.) O. brachytrichum, Schimp.; Lesq. & James, Mosses of 1ST. 

 America, 172. 



0. obtusifolium, Drumm. Muse. Bor.-Ain., No. 157. 



Upon trees in the country extending from Upper Canada (Ontario), 

 to the Eocky Mountains. (Drummond.) 



I believe Drummond's specimen to be really 0. obtusifolium. 



(346.) O. strangulatum, Beauv. ; Lesq. & James, Mosses of N. 

 America, 172 ; Canadian Musci, No. 124. 



On trees ut Bass Eiver and Fredericton, N.B. {Fowler's Cat.) On 

 trees at Cove Head, P.E.I. ; also at Pictou, N.S. ; on trees in woods 

 around Ottawa; at Belleville and Owen Sound, and also at Lake 

 Nepigon, Ont. (Macoun.*) On poplar trees at Pic to u, N.S. (McKay.) 



(347.) O. tenellum, Bruch ; Lesq. & James, Mosses of K America, 

 172. 



On trees at London, Ont., 1889. (J. Dearness.) 



(348.) O. consimile, Mitt.; Lesq. & James, Mosses of N. America, 

 173. 



On trees, Vancouver Island. (Lyall.) We are not acquainted with 

 this species. 



(349.) O. lonchothecium, C. M. & Kindb. (n. sp.) 



Differs from Orthotrichum spedosum in the capsule being shorter than 

 the pedicel, when moist, and the calyptra narrower ; the peristome 

 erect when dry, the cilia of? one row of cells. 



On trees at the mouth of Krao Creek, Kootanie Lake, B.C., July 13th, 

 1890 ; also on trees at Banff, Kocky Mountains, 1891. (Macoun.) 



(350.) O. Rcellii, Vent. Bot. Can., 51 (1890), 6. (n. sp.) 



0. lonchothecium, Canadian Musci, No. 497. 



On rocks, Fort Chipweyan, Lake Athabasca, N.W.T. ; on rocks~at 

 Yale, B.C., May 17th, 1875; also on rocks, Deer Park, Lower Arrow 

 Lake, Columbia River, B.C. (Macoun.) 



