90 GEOLOGICAL AND NATURAL HISTORY SURVEY OP 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.) 0> brachytrichum, Schimp.; Lesq. & James, Mosses of N. 

 America, 172. 



O. obtimfolium, Drumm.. Muse. Bor.-Am., No. 157. 



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

 to the Rocky Mountains. (Drummond.) 



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



(346.) O. strangu latum, Beau v.; Lesq. & James, Mosses of N. 

 America, 172; Canadian Musci, No. 124. 



On trees at Bass River and Frcdericton, N.B. (Fowler's Cat.) On 

 trees at Cove Head, P. E.L ; 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 Pictou, N.S. (McKay.) 



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

 172. 



On trees at London, Out, 1889. (J. Deamess.) 



(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, CM. &Kindb. (n. sp.) 



Differs from Orthoirichum speciosum 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, Rocky Mountains, 1891. (Macoun.) 



(350.) O. Roelin, 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 Rivei', B.C. (Macoun.) 



