MACOUN.] CATALOGUE OF CANADIAN PLANTS. 221 



found. This species is nearly allied to Amblystegium compactum, which 

 grows chiefly on decayed wood. 



On flat limestone rocks which receive the dripping of water at the 

 falls on the rivers, flowing into the head of Owen Sound Bay; in, 

 similar situations near the Whirlpool, Niagara Falls, September 24th,. 

 1890. (Macoun.) 



(831.) A. compactum, (C. Muell.) Bruch & Schimp. 



Hypnum compactum, C. Muell. ; Lesq. & Jaines, Mosses of N. America, 375 . 

 H.serpens var. compaclum, Drumm. Muse. Bor.-Am., No. 188. 



On the ground in moist places. (JDrummond.) On the bases of trees, 

 Canaan Forks, Queen's Co., N.B. (J. Moser.) Bay Bull Arm, Placen- 

 tia Bay, Newfoundland. (Rev. A. Waghorne.} On decayed wood in a 

 swamp at Carleton Place, Ont. ; on rocks at Colpoy's Bay, Lake 

 Huron. ; on rocks, on islands in Lake Nepigon, Ont. ; on the tufa mounds 

 at Banff, Eocky Mountains. (Macoun.) 



(832.) A. SUbcompactum, C. M. & Kindb. (n. sp.) 

 Hypnum compactum, Canadian Musci, No. 324. 



Differs from Amblystegium compactum (Drummond, No. 188) in the 

 stems being thicker, the leaves larger and longer, also in the asym- 

 metric capsule, curved in the younger state, at least doubly greater. 

 The British Columbian specimens have a peculiar habit ; the tufts are 

 decolorate below, bright green above, the stems are erect, about 2 cm. 

 high. 



Growing in thick tufts at the bases of trees around springs and the 

 margins of bogs at Spence's Bridge, Clinton, and along Blackwater 

 Kiver, B.C., June 10th, 1875; on wet rocks near the Whirlpool, 

 Niagara Falls. (Macoun.) 



(833.) A. riparium, (Linn.) Bruch & Schimp. Bryol. Europ. 



Hypnum riparium, Linn. ; Lesq. & James, Mosses of N. America, 376 ; 



Canadian Musci, No. 325 ; Drumm. Muse. Bor.-Am., No. 170. 

 H. uncinatum var. plumosum, Canadian Musci, No. 374. 



About the roots of trees in swamps. (Drummond.') Saskatchewan 

 and Eocky Mountains. (BourgeauJ) On stones in brooks, Molus 

 Eiver, N.B. (Fowler's CatJ On Kennebecasis Island, N.B. (fray.) 

 Wet places, Norman's Cove, Newfoundland. (Rev. A. Waghorne.) On 

 sticks and roots of trees in pools, at Ottawa ; on stones in brooks and 

 on rocks and Jogs in the Moira at Belleville, Ont. ; abundant on stones 

 in the rivers and brooks around Owen Sound, and at Eed Eock, Lake 



