CATALOGUE OF CANADIAN PLANTS. 



acuminate, denticulate at least above the middle. Capsule 

 lanceolate-cylmdric, small mouthed ; teeth pale ; segments as 

 high with a distinct basal membrane ; lid apiculate ; pedicel 

 twice longer than in A. nervosus. 



1122. A. tectorum, AL.'BRAUN. 



On rocks, Greenland. (Berggren fide Kindberg.) On rocks, 

 Moose Mountain alt. 7500 feet, Elbow River, Rocky Mountains, 

 July, 1897. (Macoun) On rock in rather dry places, lakes 

 Lebarge and Dawson, Yukon. (Williams.} 



1123. A SUbrigidulus, KINDB., Bryol. N. Am. & Eur., n. 



Differs from A. tectorum in the leaves being more distinctly 

 recurved to the short acumen ; middle cells round-oval ; costa 

 generally reaching to the acumen. Stem irregularly divided, not 

 .creeping. Capsule and lid as in A. tectonim ; peristome not seen. 



On rocks on the coast of Labrador. (Waghorne.) 



108. PLATYGYRIUM, Bruch & Schimp. 

 ^51. P. repens, BRUCH & SCHIMP. 



On old logs, Golden Lake, Ont., Sept. 27th, 1900. (Macoun.) 



109. PYLAISIA, Bruch & Schimp. 

 652. P. polyantha, (SCHREBER) BRUCH & SCHIMP. 



On trees at Credit Forks, and Edmonton, Ont., Oct., 1893. 

 (Jas. White.) On old logs, Big Intervale, Margaree, Cape Breton 

 Island, N.S.July, 1898 ; on old logs, Otter Slide Creek, Algonquin 

 Park, Ont., 1900 ; also at Golden Lake, Ont., 1900 ; on t e bases of 

 trees in woo is, Elbow River, Rocky Mountains, July, 1897. 

 (Macoun.] Sheep Camp, Dyea Creek, on wood, Alaska ; at the 

 bases of trees at Dawson. (Williams.) 



Var. rupestris, BEST, N. var. 



In thin loose mats, deep to dark green; stems prostrate, irregu- 

 larly branched; stem leaves ovate-lanceolate, narrowly acuminate, 

 subcomplanate, f Icato-secund, spreading-incurved, entire, costa 

 obsolete, '25 to '35 mm. wide, - 6 to '9 mm. long ; median leaf cells 

 linear-rhomboidal, 4 to 6 times as long as wide; alar cells pale, 



