MACOUN.] CATALOGUE OF CANADIAN PLANTS. 31 



porose, elongate and hyaline, the upper short and chlorophyllose ; 

 costa scarcely excurre nt, nearly smooth, narrow. Capsule curved, 

 small and not furrowed ; pedicel 1 cm. long. 



This species is principally remarkable in the whitish leaf-base, but 

 in habit resembling D. congestum, Brid. 



On bases of trees in woods west of the Columbia River at Bevel- 

 stoke, B.C., May 6th, 1890 ; and in Roger's Pass, Selkirk Mountains. 

 (Macoun.) 



(10*7.) D. elongatum, Schwaegr ; Lesq. & James, Mosses of IS". 

 America, 71 ; Drumm. Muse. Bor.-Am., No. 91. 



Mountain woods. (Drummond.') Miquelon Island. (Delaware.} 

 In bogs, New Harbor, Newfoundland. (Rev. A. Waghorne.) Northern 

 shores of Lake Superior, 1848. (Agassiz.~) Mansfield Island, Hudson 

 Strait. (R. Bell.) Mount Albert, Gasp Co., Que. ; borders of Lesser 

 Slave Lake and near Peace River, 1872. (Macoun.) Kotzebue Sound. 

 (Roth. Alask.} Smith's Sound. (Dr. Kane.} Greenland. (Fl. Gr.) 



(108.) D. plano-alare, C. M. & Kindb. (n. sp.) 



Differs from D. Labradoricum, C. Muell. (D. G-roenlandicum, Brid., 

 Limpricht, D. tenuinerve, Zett.) in the leaf-cells being greater, short, 

 rectangular and nearly uniform, the alar scarcely greater and not 

 excavate ; leaves green, a little larger with a quite blunt acumen ; the 

 stems cohering and shorter. 



In D. Labradoricum the cells are very narrow, the alar well-defined 

 and the leaves less blunt. The allied D. elongatum has an excurrent 

 costa and the upper leaf-cells shorter than the lower. 



On earth at the mouth of the Illicillewaet Canon, near Revelstoke, 

 B.C., May 18th, 1890. (Macoun.) 



) O. fra ifoiium, Lindb. ; Lesq. & James, Mosses of N. 

 America, 73 ; Canadian Musci, No. 41 . 



On rotten wood, near Lesser Slave Lake, Sept. 20th, 1872 ; also on 

 logs at Hudson Hope, Peace River. Lat. 55 12'. 1872. (Macoun.} 



(110.) D. longifolium, Hedw. ; Lesq. & James, Mosses of N. 

 America, 70 ; Canadian Musci, No. 38 ; Drumm. Muse. Bor.-Am. 

 Nos. 93-94. 



Greenland. (FL G-r.) Miquelon Island. (Delamare.) On rocks 

 at Sudbury Junction, and along the north shore of Lake Superior, and 

 common at Lake Nepigon and along the Dawson Route west of Lake 



