230 GEOLOGICAL AND NATURAL HISTORY SURVEY OF CANADA. 



(858.) H. longinerve, Kindb. 



Dichelyma longinerve, Kindb., Bull. Torr. Bot. Club. XVI., 97 ; Canadian 

 Musci, No. 391. 



Habit of Hypnum fluitans. Stems erect, about 1 decim. high, loosely 

 csespitose. rootless, subpinnately branching. Leaves falcate, entire, 

 the upper yellowish-green, oval-lanceolate, long-acuminate, long- 

 pointed by the f-J excurrent costa ; most of the cells sub-linear, the 

 basal numerous, in 4-6 rows, subquadrate or rectangular, the alar 

 greater, pellucid. Flowers and capsules not seen. 



Quite common on sticks in dried-up ponds, particularly behind the 

 school-house, at Cedar Hill, near Victoria, Vancouver Island, June 23rd, 

 1887. (Macoun.} 



(859.) H. conflatum, C. M. & Kindb. (n. sp.) 



H. Sendtneri, Canadian Musci, No. 334, in part. 

 H- fluitans, Canadian Musci, No- 336, in part. 



Allied to Hypnum Xneiffii. Stem slender, subfiliforra, distantly pinnate, 

 not radiculose. Leaves small, concave, distant, denticulate all around ; 

 stem-leaves decurrent, from a broad-ovate base suddenly narrowed into 

 a very Fhort, subulate-filiform, straight point ; alar cells very large, 

 hyaline or faintly yellowish, the other nearly uniform, oblong-lanceolate, 

 conflate ; costa pale-yellow, vanishing in the acumen ; branch-leaves 

 narrower, oblong-lanceolate, more or less short-acuminate, curved or 

 straight. Capsule very small, arcuate and contracted below the 

 mouth. Dioecious. 



In a pool on the mountain between the Thompson and Nicola rivers 

 at Spence's Bridge, B.C. ; alt. 3,000 feet, May 28th, 1889 ; also in a 

 bog at Britannia, six miles west of Ottawa, Ont. (Macoun.} Battle 

 Harbor, Labrador. (Rev. A. WagJiorne.} 



Subgenus III. CRATONEURON, Sulliv. 



(860.) H. fllicinum, Linn. ; Lesq. & James, Mosses of 1ST. America, 

 386 ; Canadian Musci, No. 339. 



By springs, Tobique River, N.B. (Hay.} New Harbor and White Bay, 

 Newfoundland. (Rev. A. Waghorne.} By a spring at Canaan Forks, 

 Queen's Co., N.B. (J. Moser.} In limestone springs. Jupiter River, 

 Anticosti ; by springs, at Truro, N.S. ; wet limestone rocks and by 

 springs, Gasp Co., Que. ; by a spring along the Trent River, two 

 miles above the railway bridge at Trenton, Ont. ; abundant on rocks 

 below Jones Falls, at Owen Sound, Ont. ; by springs along the Atha- 



