MACouN.] CATALOGUE OF CANADIAN PLANTS. 31 



poi-ose, 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 Eiver at Eevel- 

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

 (Macoun.) 



(lot.) D. elongatum, Schwaegr ; Lesq. & James, Mosses of IS". 

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



Mountain woods. (Brummond.) Miquelon Island, {Deldmare.) 

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

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

 Strait. (B.Bell.) Mount Albert, Gaspd Co., Que. ; borders of Lesser 

 Slave Lake and near Peace Eiver, 18*72. (Macoun.) Kotzebue Sound. 

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



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



Differs fi-om D. Labradoricum, C, Muell. (D. Grcenlandicum, Brid., 

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

 rectangular and nearly uniform, the alar scarce!}' greater f^nd 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 B. elongatum has an excurrent 

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



On earth at the mouth of the Illicillewaet Carton, near Eevelstoke, 

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



(109.) D. fragilifolium, 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 Eiver. 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. (Ft. Gr.) Miquelon Island. (Belamare.) On rocks 

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

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



