MACOUN.] CATALOGUE OF CANADIAN PLANTS. 135 



(520.) B. Ontariense, Kindb., Bull. Torr. Bot. Club, XYL, 96 ; 

 Canadian Musci, ]STo. 184. 



Intermediate between B. roseum and B. Beyrichii (Hsch.) C. Mueller. 

 Comal leaves very numerous, Ungulate, abruptly and short acuminate, 

 revolute to or J, yellow-margined above with great confluent teeth ; 

 costa stout, excurrent. Capsule pale, with a distinct, curved collum 

 half as long, teeth papillose and hyaline above ; archegonia numerous ; 

 lid convex short-apiculate, not oblique. 



Hitherto confounded with Bryum roseum and quite common through- 

 out Ontario ; generally in a barren state. On old logs and sometimes 

 on limestone rocks in maple woods, at Ottawa, Belleville and Owen 

 Sound, Ont. (Macoun.~) Pine woods, Eiver Rouge, Argenteuil Co., Que. 

 (D' Urban.) Common at London, Ont. (/". Dearness.} Tay and 

 Canaan Forks, N.B. (J. Moser.) Also found in Ohio, United States. 

 (Prof. Wetherby fide Kindberg.) 



(521.) B. Simplex, Kindb. (n. sp.) 



Allied to Bryum roseum ; differs in the shoots being short, about 2 

 cm., clavate, the comal leaves smaller, suboval, not cuneate at the 

 base, fainter denticulate, not patent when moist, the cells shorter, 

 nearly uniform, the squamiform leaves indistinct. Barren. 



This species is also distinct from Bryum Ontariense, Kindb., and 

 Bryum lucidum, Britt. We have not seen American specimens of the 

 true B. roseum. 



In small quantity, in crevices of rocks on the Gold Range, north of 

 Griffin Lake, B.C. ; alt. 6,700 feet. August 9th, 1889. (Macoun.') 



(522.) B. concinnatum, Spruce; Lesq. & James, Mosses of 1ST- 

 America, 240. 



Greenland. (Fl. Gr.) 

 (523.) B. acutiusculum, C. Muell. in Flora, K 14 (1887). 



Alaska. (Krause.') 

 (524.) B. bullatum, C. Muell. in Flora K 14 (1887). 



Alaska. (Krause.) 



(525.) B. stenotrichum, C. Muell. 

 Alaska. (Krause.} 



