MACOUN.] CATALOGUE OF CANADIAN PLANTS. 189 



(711.) C. hamatidens, Kindb. 



Hypnum (Camptotheclum) hamatidens, Kindb., Bull. Torr. Bot. Club, XVI., 

 97 ; Canadian Musci, No. 279. 



Dioecious. Densely csespitose, yellow or green, glossy. Stems pros- 

 trate, scarcely or not radiculose, irregularly pinnate-ramose ; branchlets 

 short, attenuate and flexuose. Leaves open-erect, lanceolate, long 

 filiform-acuminate, striate, hooked-denticulate or spinulosenlh around, 

 reflexed on the bord ers ; cells narrow, the basilar small and short ; 

 costa stout, vanishing at the apex. Perichetial leaves nerveless, nar- 

 rowed into an erect, or flexuose, subulate point, entii*e or slightly 

 denticulate. Capsule cylindric-oblong, curved, suberect or inclined, 

 without a neck ; segments split their whole length or coherent at the 

 apex ; cilia rudimentary ; annulus narrow ; lid conic-obtuse, depressed 

 in the middle and mammillate ; pedicel 1-1.5 cm, long, rough the 

 whole length. Eelated to H. Nuttallii, Wils., but differs as above. 



On rocks at Yale and Agassiz, B.C. ; on trees at Mount Tolmie, 

 near Victoria, Vancouver Island ; (also at Nanaimo, June 8th, 1887.) ? 

 (Macoun.) 



Yar. tenue, Kindb., Bull. Torr. Bot. Club, XVII., 277 ; Canadian 

 Musci, No. 392. 



Branches longer, filiform, leaves smaller only at the base and 

 hooked-denticulate at the apex. 



On perpendicular rocks, Mount Erskine, Salt Spring Island, Gulf of 

 Georgia, B.C., May 10th, 1887. (Macoun.) 



(712.) C. nitens, Schimp. Syn., 530. 



Hypnum (Camptothecium) nitens, Schreb. ; Lesq. & James, Mosses of N. 

 America, 333 ; Canadian Musci, No. 278 ; Drumm. Muse. Bor.-Am., 

 No. 172. 



In swamps ; not common. (Drummond.*) Mansfield Island, Hudson 

 Straits. (R. Bell.} Peat bogs, Salt Lake, Anticosti ; Dow's swamp 

 and Mer Bleue, near Ottawa ; peat swamps in Hastings and .Northum- 

 berland counties, Ont. ; peat bog, Lake Nepigon, Ont. ; on wet lime- 

 stone rocks, Hudson Hope, .feace Eiver, lat. 56 ; swamps at Morley, 

 Banff, Stephen and Hector, Rocky Mountains ; peat swamp west of 

 the Eraser River at Quesnel, B.C. (Macoun.} Peat bogs, Port Arthur, 

 Ont. (Mrs. E. G. Britton.} In bogs, Portage la Loche, N.W.T. (J. 

 M. Macoun.} Kotzebue Sound. (Roth. Alask.} Greenland, (Fl. Gr.} 

 Bogs, Saskatchewan. (Bourgeau.} In swamps near London, Ont. (J. 

 Dearness.} 



