182 The Ottawa Naturalist. [Jan. 



acute; costa long-excurrent. Tufts blackish-brown when dry, 

 dense, 2-3 cm. high. Stem capillary. Dioecious. Capsules not 

 seen. 



On rocks, summit of McArthur Pass, western slope of Rocky 

 Mountains, B.C.. altitude 7,500 feet, August 10th, 1904. 

 No. 241. 



48. Barbula subandre^.oides. 



Resembles B. andreceoides in the stem being often proliferous 

 with long shoots, also in perichetial leaves and in habit. 



Differs from it: Leaves longer, generally subovate-oblong 

 short-acuminate and not reflexed. Tufts pu]vinate,^about 1 cm. 

 high. 



On rocks, near Twin Falls, Yoho Valley, western slope of 

 Rockv Mountains, B.C., altitude 6,800 feet, September 6th, 

 1904." 



49. Barbula inclinata (Hedw. fil.) Schwaeor. 



On damp rocks at Laggan, eastern slope of Rockv Mountains, 

 altitude 5,200 ft., June 26th, 1904. No. Ib^. New to Canada. 



50. DiDYMODOx brachydoxtius (bruch) Wils. 



(Trichostoman mutabile Notaris). 

 British Columbia, fruiting : A. Brinkman, 1908. 



51. EXCALYPTA ALASKANA, KiNDB. 



"E. faviseta," Kindb. in letter to Macoun, 1890. 



Leaves recurved, not limbate obtuse or subobtuse. Capsule 

 taintly sulcate when dry; pedicel soon red; calyptra not fringed. 



Collected on rocks at Sicamous, B.C., July 3rd, 1889, on the 

 Yoho Pass, B.C., September 2nd, 1904; also at Laggan, Alta., 

 June 27th, 1904. 



52. Meesra Macounh. 



Syncecious. Leaves decurrent, from a dilated base taper- 

 ing to a gradually attenuate, acute, entire or near the apex 

 sparingly dentate acumen ; the upper reflexed at the borders and 

 with an excurrent costa; basal cells larger than the upper ones. 

 Pedicel of capsule to 7 cm. long. 



M. longiseta differs in the leaves not being reflexed and. with 

 an abbreviate costa. In M. Albertinii the leaves are entire, their 

 l")asal cells small; the pedicel of the capsule is not so long. 



In a small log at Laggan, eastern slope of Rock\'. M-ount;iins, 

 Alta., altitude 5,500 feet, July 2Sth, 1904. No. 37'. 



53. Mielichhoferia recurvifolia. 



Leaves small and smooth, broadlv ovate, obtusate or very 

 shortly acuminate, slightly denticulate above, often recurved 



