MACOUN.] CATALOGUE OF CANADIAN PLANTS. 265 



(214.) B. convoluta, Hedw. var. obtusata, Kindb. (n. var.) 



Differs in the leaves being broader, generally obtuse, rarely subacute, 

 and not apiculate. 



On limestone rocks at the base of the cliff, Owen Sound, Ont., Sep- 

 tember 16th, 1890. (Macoun.} 



(220.) B. ruralis, Hedw. 



Shore of Lake Erie, at Port Colborne, Ont. ; on dry rocks at Eevel- 

 stoke, B.C. Peculiar forms of this species have been gathered on the 

 east end of the Cypress Hills, Alberta ; and on Mount Aylmer, north 

 side of Devil's Lake, Eocky Mountains. (Macoun.) 



(222.) B. aciphylla, Bruch & Schimp. 



On rocks at Battle Harbor, Labrador. (Rev. A. Waghorne.} Abun- 

 dant on Mount Aylmer, Devil's Lake, Eocky Mountains, alt. 8,300 

 feet. (Macoun.) 



(223.) B. megalocarpa, Kindb. 



On rocks " Dry Canon, discharge of Devil's Lake, Eocky Mountains. 

 (Macoun.} 



(944.) B. laeviuscula, Kindb. (n. sp.) 



Tufts brown, radiculose at the base of the leaves, 3-4 cm. high. 

 Leaves narrow, lingulate, carinate, nearly smooth or indistinctly 

 papillose at the recurved borders ; lower marginal cells of the leaf-base 

 hyaline, short-rectangular in 1-2 rows, median yellow and porose in 

 2-3 rows, inner larger, longer and hyaline ; costa red, indistinctly 

 papillose at back, denticulate and hyaline near the long hispid hair- 

 point. Capsule subcylindric, attenuate at the base to the pedicel ; 

 peristomial tubes very much shorter than the pale teeth. 



Differs from Barbula ruralis principally in the nearly smooth leaves, 

 the narrower capsule and the thinner pedicel. 



On rocks on the summit of Tunnel Mountain, Banff, Eocky Moun- 

 tains, July 6th, 1890. (Macoun.) 



(945.) B. (Syntrichia) ? 



This is in a barren state and hence doubtful. It differs from B. 

 ruralis in the leaves being emarginate, less reflexed at the borders and 

 the hair-point less hispid, &c. 



On rocks at the base of Sulphur Mountain, Banff, Eocky Mountains, 

 June 28th, 1891. (Macoun.} 



