184 The Ottawa Naturalist. IJan. 



No. 369. On rocks and earth at Ottawa, October 10th, 1905. 

 New to Canada. 



59. Mnium medium Br. eur. * boreale, Kindb. 



Near Fort Albany, James Bay, Hudson Bay, August 9th, 

 1904. Coll. W. Spreadborough. 



New to Canada. Also found in Illinois by C. F. Baker. 



60. Mnium Blyttii Br. eur., var. microphyllum, Kindb- 



new variety. 



Leaves smaller, obtusate (not acuminate), generally obtuse 

 and elliptic, rarely with a very short point; only shoot-leaves 

 green, the others purplish-red. 



In bogs along Hunker Creek, Yukon. Not unc.mmon. 

 Collected in July, 1902. Nos. 218, 219, 21,3 in part. 



61. Mnium Macounii. 



Agrees with M. riparium. Mitt., in the leaves of the barren 

 stems being loosely disposed and crisped when dry. 



Differs in leaves being very much smaller, nearly always 

 simply dentate (or entire at least below the iniddle), very rarely 

 doubly dentate; nearly all cells of the same size (not smaller 

 towards the margins), also (and principally) in the short costa. 



Leaves generally obtusate (short-pointed or acute), more 

 or less (or not) decurrent; the lower leaves smaller and broadly 

 oval often reddish; the upper generally oval (or rarely oblong); 

 all with a border of 2-3 rows of narrow and often finally red 

 cells; costa finallv red, not dentate, abbreviate, generally ceasing 

 far belovv^ the apex. Stem purplish. Tufts large, very radiculose 

 at the base, dense, 1 cm. high or lower. Dioecious. Capsules 

 not seen. 



In peat bogs along Bonanza and Hunker Creeks, Yu on, 

 July. 1902. Nos. 212, 233b. 



62. Bryum cyclophylloides. 



Differs from B. cydophyllum (Schw.) Br. eur. 



Upper leaves more concave, crowded (and green), the lower 

 rufescent; cells somewhat larger, the alar rufous; costa per- 

 current, often red. Capsules not seen 



In a small pool by Pipestone Creek, eastern slope of Rocky 

 Mountains, altitude 6,500 feet July 6th, 1904. No. 84. 



63. Bryum pendulum (Hornsch.) Schimper., * Nanum. 

 Differs in capsule being minute, pedicel less than 1 cm. long, 



stem very short with gemmiform shoots. 



On Cape Henrietta Maria, west side of James Bay, Hudson 

 Bay, August 9th, 1904. Coll. Wm. Spreadborough. 'No. 364. ^Uii 



