142 The Ottawa Naturalist. [Nov. 



26. Tetraplodon mnioides * Breweri, var. brevicollis, 



Differs in the capsule (as in T. urceolatus [Brid.] Br. & Sch.) 

 not being shorter than the neck. 



Collected on Bonanza Creek, Yukon, July 18th, 1902. 

 Coll. John Macoun. No. 144b (?) 



27. DiCRANUM SUBSCOPARIUM. 



Agrees with D. scoparium in its leaves being canaliculate 

 and broadly acuminate, thin cells narrow with large pores, costa 

 not excurrent, perichetial leaves short -arist ate, capsule curved; 

 differs in having a sulcata capsule, also in its leaves being more 

 strongly dentate; costa not distinctly bilamellate. 



The leaves are undulate, nitid, golden yellow or bright green 

 and nearly straight. 



On earth in woods at Laggan, Rocky Mountains, Alta., at 

 an altitude of 5,200 feet, June 28th, 1904. Nos. 55 and 181. 



28. DiCRANUM STENODICTYON, KiNDB. 



Collected on Bonanza Creek, Yukon, 'l902. The habit of 

 these specimens does not differ from that of the other species of 

 Dicranum, as stated in the first description. 



29. DiCRANUM PERICH^TIALE, KiNDB. 



British Columbia. J. M. Macoun. 



30. DiCRANOWEISIA RoELLII, KiNDB., VAR. ATERRIMA. 



Differs in the tufts being black when dry, as in D. crispula 

 var. airata. 



On rocks, 7,000 feet altitude, at Lake O'Hara, Rocky 

 Mountains, B.C., August 9th, 1904. 



31. SeLIGERIA SUBCAMPYLOPODA, new VARIETY. 



Leaves entire subUnear, mostly long and acute; costa 

 generally percurrent, rarely short-excurrent. Perichetial leaves 

 obtuse, very much broader and shorter. Capsule (generally 

 broadly) piriform; pedicel long, arcuate when moist. Tufts 

 dense, about 0.5 cm. high. 



On rocks at the head of Lake Louise, altitude 6,000 feet, 

 Rocky Mountains, Alta., September 13th, 1904. No. 7. 



32. Grimmia elatior, Bruch. * rufescens. 



Agrees with G. elatior in the leaves and their costa being 

 papillose, nearly all the leaf-cells (except the lower basal) 

 sinuous; leaves large, nearly appressed when dry. 



Differs in leaves being rufescent, often recurved all around, 

 with longer and more numerous papillae, and a short, strongly 

 dentate-papillose hairpoint. 



