MAOOUN.] CATALOOUE OF CANADIAN PLANTS. 193 



Since the true Brachythecium salebrosum is an object of so many 

 contrary descriptions by different authors, we have preferred to propose 

 this form separately. 



Schimper says, Syn. muscor. Burop. ed. 2, 11, 641 : — operculo conico, 

 annulo angusto, processus in carina hiantes. 



Lesq. & James, Mosses of N. America, p. 336 : — operculum conical, 

 annulus narrow, cilia articulate. 



C. Mueller, Syn. Muscor. Omn., II., 359 : — folia caulinse laxe imbri- 

 bricata, late ovata longe latiuscule acuminata, perichetialia longe reflexa 

 acuminata ; theca exannulata ; operculo conico acuto, perist. d. int. 

 valde hiantes, ciliis appendiculatis. From the last description the 

 present one differs considerably. 



('719.) B. glareosum, (Bruch), Bryol. Europ. ; 0. Muell., syn. 361. 



Hypnura luiescens, Drumm. Muse. i!or.-Am., No. 174. 



About the roots of trees. (Drummond.) On earth at the roots of 

 trees in woods west of the Columbia Eiver at Eevelstoke, B.C. 

 (Macoun.) 



(720.) B. Roellii, Een. & Card. 



Near Victoria, Vancouver Island. (^Dr. Eoell.') 

 (721.) B. leevisetum, Kindb., Bull. Torr. Bot. Club, XVII., 279. 



Habit of B. populeum. Plants csespitose, green and glossy. Stem 

 irregularly ramulose. Leaves close, sub-erect, open, ovate-lanceolate, 

 acuminate and acute, sulcate ; borders serrulate from the middle 

 upwards ; basal cells dilatate ; costa long, reaching at least two-thirds 

 of the leaf. Capsule small, incurved, oblong ; outer teeth hyaline- 

 margined, light brown ; cilia short and not appendiculate ; perichetial 

 leaves nerveless ; lid highly convex, not apiculate ; pedicel very smooth. 

 MonCEcious. 



In small quantity on a rotten log in the valley of Eagle Eiver at 

 Craigellachie, Gold Eange, B.C., July 18th, 1889. (Macoun.) 



(722.) B. acutum, (Mitt.) Sulliv. Icon. Suppl. 99. 



Hypnum {Brachythecium) acutum, Mitt. ; Lesq. & James, Mosses of N. 

 •America, 337 ; Canadian Musci, No. 438. 



Pack Eivei-, British Columbia. (Lyall.) Mansfield Island, Hudson 

 Strait, 1885. (JR. Bell.) On earth in wet woods, Beechwood, Ottawa, 

 Ont. ; and west of Hull, Que. ; on logs at Hastings, and on earth at 

 Quesnel, B.C. (Macoun.) 



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