S6 GEOLOGICAL AND NATDKAL HISTORY SURVEY OF CANADA. 



when dry very much crisped, when moist subarcuate, shoi't-attenuate 

 to the acute apex ; borders revolute above the base, for the greater part, 

 at least on one side, distinctly papillose, also at the hack; cells at basal 

 wings Bub-quadrate hyaline with incrassate transverse walls, those next 

 the costa narrower, rectangular, in straight i-ows, the lowest orange; 

 costa pale, subpercurrent. Male flower at the side of the female. 

 Inner perigonial leaves broad, short-ovate, obtusate or suddenly short- 

 acuminate ; cells round only in the acumen, the others narrow, the 

 lower basal wider and yellow ; antheridia about 9, with several para- 

 physes. Perichetial leaves with sublinear basal cells. Capsule dark- 

 brown, short subovoid, not contracted on the mouth, costate ; pedicel 

 short, scarcely emergent. Calyptra densely hairy. 



This species is a true Ulota, although the revolute leaf-borders, the 

 distinctly papillose cells and the short pedicellate capsule are more like 

 to an Orthotrichiim. 



On cedar trees in Dow's Swamp near Ottawa; on trees at Owen 

 Sound, Ont, Sept. ITth, 1890. (^Macoun.) 



55. ORTHOTRICHUM, Hedw. 



(326.) O. anomalum, Hedw. ; Lesq. & James, Mosses of N. 

 America, 164; Canadian Musci No. 118, in part; Mitt. Journ. 

 Linn. Soc. VIII, 24. 



On rocks at Fredericton, N.B. {Fowler's Cat.') On rocks, McKay's 

 Woods, Ottawa; on rocks, Gibson's Mountain, Prince Edward Co., 

 Ont. ; on rocks at Belleville and Shannonville, Hastings Co., Sudbury 

 Junction and Lake Nepigon, Ont. ; at Eananaskis Eiver crossing of 

 C. P. Ey., Eocky Mountains. (Macoun.) On rocks, Buffalo Lake and 

 Clearwater Eiver, lat. 56° KW.T. (J. M. Macoun.) Saskatchewan, 

 (Bourgeau.') Abundant on rocks at Kingston and Wolfe Island, Ont. 

 {Fowler.) Greenland. {Fl. Gr.) 



Var. Americanum, Vent. (n. var.) 



0. anomalum, Drumm. Muse. Bor.-Am., No. 148 ; Canadian Musci, No. 

 118, in part. 



This is a form that has a yellow capsule and differs considerably from 

 the normal form, in the well-evolute cilia. 



Upon rocks ; common. (JDrummond.) On rocks along the shore of 

 Lake Winnipegoosis, Man. ; on boulders and sandstone rocks, Hand 

 Hills, Alberta. {Macoun.) 



