34 GEOLOGICAL AND NATURAL HISTORY SURVEY OF CANADA. 



Var. trachyneuron, Kindb. (n. var.) 



Stems shorter. Leaves smaller, narrower and looser, more densely 

 and evidently serrate on the borders, subuliform-cuspidate ; alar cells 

 yellow ; costa not excurrent, rough also below the middle and upwards. 



Cedar swamps at the base of the Oak Hills, Hastings Co., Ont., July 

 3l8t, 1871. (Macoun.) 



(}11.) D. undulatum, Turn. ; Lesij. & James, Mosses of N. Ame- 

 rica, Te ; Canadian. Musci, No. 48 ; Drumm. Muse. Bor.-Am. 

 No. 85. 



Miquelon Island. (Delamare.) Dry woods, on the ground, Bass Eiver, 

 and Grand Lake, N.B. {Fowler's Cat.) Beau Lac, Madawaska, and 

 swampy ground, Tobique Eiver, N.B. {Hay.) Bogs, Tignish, P.B.I. ; 

 common in McKay's Woods, Stewart's Bush, Dow's Swamp and Mer 

 Bleue, Ottawa ; in cedar swamps throughout Ontario ; North Bay, Lake 

 Nipissing, woods at Lake Nepigon ; swamps. Porcupine Mountains, 

 Man. ; at Donald, Columbia Valley, and Deer Park, Lower Arrow 

 Lake, Columbia Eiver, B.C. ; and at Victoria, Vancouver Island. 

 {Macoun.) In woods, Missinaibi Eiver, Ont. (iJ. Bell.) Shady 

 woods ; common. (JDrwmmond.) Among Sphagnum, near London, 

 Ont. {J. Beamess.) Nashwaaksis, York Co., N.B. (J. Moser.) 



(118.) D. spurium, Hedw, ; Lesq. & James, Mosses of N. America, 

 75 ; Drumm. Muse. Bor.-Am. No. 90 ; Canadian Musci, No. 46 in 

 part; barren. 



About Lake Superior. (Brummond.) On rocks, North West Arm, 

 Halifax, N.S. ; on metamorphic rocks, Gatineau Eiver at Chelsea, Que., 

 and at Shannonville, Hastings Co., Ont., 1865. {Macoun.) 



(119.) D. brachycaulon, Kindb. (n. sp.) 

 D. fpurium, Canadian Musci, No. 46, in part. 



Allied to Dicranum spurium, but differing in the short stem only 

 1 cm. high, the leaves smaller and shorter, oblong-ovate, acute, not 

 acuminate, entire, not papillose at back, costa elevate, percurrent and 

 smooth, alar cells brown, capsule small, pedicel 1 cm. long. This 

 species is peculiar in its short leaves and the elevate costa. 



On dry rocks in open woods near the lighthouse at Yarmouth, N.S., 

 .Tune 23rd, 1883. {Macoun.) 



(120.) D. dipteroneuron, 0. Muell., Beitr. zur Bryol. Nord. 

 Amerikas in Flora 14. (1887.) 



Alaska. (C. Mueller.) 



