MACOUN.] CATALOGUE OF CANADIAN PLANTS. . 243 



(907.) H. torrentis, C. M. & Kindb. (n. sp.) 

 H. Goulardi, Canadian Musci, No. 503. 



Differs from H. Goulardi in the stems being filiform, very rigid, the 

 leaves smaller, subcircular, crenulate all around, reflexed at the basal 

 margins, the costa thick and nearly percurrent ; it differs also from 

 Hypnum arcticum in the loosely disposed, decurrent leaves and their 

 large angular cells. 



On sloping limestone rocks in the bed of the torrent a little above 

 the station at Hector, Eocky Mountains, August 12th, 1890. (Macoun.) 



(908.) H. alpestre, Swartz. ; Lesq. & James, Mosses of N.America, 

 399 ; Canadian Musci, No. 396. 



On rocks in a glacier stream discharging the melted snow on the 

 east side of Castle Mountain, and on Vermillion Mountain at Banff, 

 Eocky Mountains. (Macoun.') Greenland, (Fl. G-r.) 



(909.) H. montanum, Wils. MS.; Lesq. & James, Mosses of N. 

 America, 401. 



On damp rocks in the bed of Sydenham Eiver at Owen Sound, Ont. 

 (Macoun.} Pickle Harbor, Newfoundland. (Rev. A. Waghorne.) 



(910.) H. pseudo-montanum, Kindb. (n. sp.) ; Canadian 

 Musci, No. 539. 



Nearly allied to Hypnum montanum, differing principally in the stem 

 being longer and more robust, the leaves larger and thinner, more loosely 

 disposed, longer decurrent, not distinctly denticulate, the alar cells 

 large, reaching to the costa, which is simple and prolonged above the 

 middle. Inflorescence monoecious. Capsules not found. 



This species and Hypnum montanum have a peculiar habit in the 

 leaves being variously curved, either incurved or recurved in the same 

 specimen, and are rather appearing to belong to the section Campylium. 

 Their position in the section Limnobium is at least doubtful. 



On rocks in all the streams around Owen Sound, especially below 

 Jones Falls and the Potawatomie Falls, September 15th, 1890. 

 (Macoun.) 



(911.) H. eugyrium, Schimp. ; Lesq. & James, Mosses of N. 

 America, 401 ; Canadian Musci, No. 535. 



On stones, Bass Eiver, N.B. (Fowler's Cat.) On stones in the 

 brook at Pirate's Cove, Straits of Canso, N.S. ; on stones in a ravine, 

 Sulphur Mountain, Banff, Eocky Mountains. (Macoun.) Pictou Co., 



