148 GEOLOGICAL AND NATURAL HISTORY SURVEY OF CANADA. 



(SBT.) A. crispum, James; Lesq. & James, Mosses of N. America, 



257 ; Canadian Musci, 'No. 540. 



A. xanthopelma, Canadian Musci, No. 463. 



On earth in woods near Wooler, Northumberland Co., Ont. ; also in 

 woods at Port Dover and Leamington, Ont. ; on earth along the 

 Columbia Eiver, about a mile above Eevelstoke, B.C. ; abundant on a 

 loamy bank at Craigellachie, Eagle Pass, B.C. (^Macoun.) 



(568.) A. parallelum, Mitt.; Lesq. & James, Mosses of N. America, 



258 ; Canadian Musci, No. 426. 



Polyirichum undvlaiwm, Drumm. Muse. Bor.-Am., No. 286. 



Gi^nd C6te, Rocky Mountains. (Brummond.') Wet rocks in Eoger's 

 Pass and on the higher slopes of Mount Cheops, Selkirk Mountains ; 

 also on the Gold Eange north of GrifSn Lake, B.C. ; alt. 6.500 feet. 

 (^Macoun.) 



(569.) A. leiophyllum, Kindb., Bull. Torr. Bot. Club XVII, 275 ; 

 Canadian Musci, No. 217. 



Plants erect, simple, naked below, densely foliate above, about 5-7 

 cm. high. Leaves smooth, lower very small, upper lanceolate and 

 acute-cuspidate, not margined, the base scarcely broader ; borders 

 sharply serrate with large teeth, the basal only, entire ; basilar cells 

 narrow, the other round-hexagonal, all pellucid ; costa percurrent ; 

 lamellee 6, disappearing below the apex, entire or slightly crenulate. 

 Capsule single, 0.5-0.6 cm. long, sub-cylindrical, thicker below, 0.2 cm. 

 broad, slightly curved, constricted at the mouth ; lid obliquely rostrate 

 from the conic base ; perichetial leaves long-cuspidate with an excurrent 

 costa ; pedicel bright red, 4-5 cm. long. Dioecious. 



This fine species differs considerably from A. parallelum in the 

 smooth leaves, &c. 



In damp woods on the lower slopes of Mount Arrow smith, Yan- 

 couver Island, July 18th, 1887 ; on earth in Eoger's Pass, Selkirk 

 Mountains, B.C., August, 1890. (^Macoun.) 



(570.) A. rosulatum, C. M. & Kindb. (n. sp.) 



Dioecious. Stem indistinct or very short. Leaves rosulate, undulate, 

 not margined, dentate at the middle, sometimes beset with transverse 

 rows of small scales, the lower sub-oblong, the upper short-lanceolate, 

 subobtuse ; costa scarcely percurrent, nearly smooth. Ban-en. 



This species is not to be confounded with our other species, though 



