1909] The Ottawa Naturalist. 139 



Fruiting on stones in a brook at Laggan, eastern slope of 

 Rocky Mountains, Alta. Altitude 5,200 feet. June 27th, 1904. 

 No. 152 in part. 



11. EURHYNCHIUM GLACIALE * INFRAALPINUM. 



Differs. All leaves serrate, less crowded and longer- 

 decurrent. Stem-leaves longer-costate. Perichetial leax'es 

 defiexed. Pedicel of capsule very rough. Leaves small. Capsule 

 not seen. 



Cape Breton Island, at the base of trees, 1898. 



12. EURHYNCHIUM TRACHYPODIUM (FUNCK.) KiNDB. 



Collected on rocks on Yoho Pass, western slope of Rocky 

 Mountains, B.C. Altitude 5,500 feet. September 2nd, 1904. 

 No. 230. 



13. Brachythecium pseudo-chloropterum. 



Leaves long-decurrent, recurved below to the middle, 

 serrulate all around, nearly gradually tapering from a subovate 

 base to a rather longish acumen, not or indistinctly striate, 

 nearly crowded not mamillose at the back, suberect when drv; 

 cells small, nearly all rhombic-rhomboidal (as in Amblystegium) ; 

 alar cells large, short subrectangular-quadrate finally rufesceui; 

 costa subpercurrent or sometimes short-excurrent. Tufts loose, 

 decolorate with green branch-tips. Stem sparingly branching, 

 6-8 cm. high, radiculose at the base, beset below with minute 

 leaves. Dioecious. Capsules not seen. 



Resembles in habit Eurhynchium chloropterum, C. M.'and 

 Kindb., also in the serrulate and punctulate, not large leaves. 

 It has rather the characters of Brachythecmm than Eurhynchium, 

 but definite limits between these "genera" are not existing. 



In wet ground in the valley of Pipestone Creek, eastern 

 slope of Rocky Mountains, Alta.,' July 8th, 1904, altitude 6,000 

 feet. No. 74.' 



14. Brachythecium rivulare (Bryol. eur.), * B. 



colpophylloides. 



Differs from this species in the leaves being narrower and 

 their acumen longer and abruptly tapering to a short tAvisted 

 point. Capsules and pedicels not seen. It is therefore doubtful 

 that it belongs to B. rivulare; but the areolation of the leaves 

 is the same. 



On earth in the Yoho Vallev, west slope of Rocky Mountains, 

 B.C., altitude 7,000 feet, September 6th, 1904. No. 293. 



15. Brachythecium cirrhosum (Schwaegr) Schimper. 



Collected on Southampton Island, Hudson Bay. August 

 15th, 1904, by Commander A. P. Low. No. 360. 



