216 TORTULACE^. 



Down — Rostrevor, and rocks by the shore at Groomsport; C.H.W. 



Rocks by the shore at Annalong ; H.W.L., and C.H.W. 



Rocks by the sea at Groomsport 0Faddell) ; Brit. Moss Flora. 

 Antrim — Basalt rocks at Blackhead ; S.A.S., March, 1884. 



Fii-st found in Ireland by Rev. C. H. Waddell, in 1883 at Omeath Co. 

 Louth. 



13. Tft. tortuosa {Linn.) SehranTc. (Tortula JEhr.). 

 In dense cushions on rocks in mountain districts, and occasionally on 

 walls — frequent and of ten abimdant ; Fr. July {B.M.F.). 

 Down — Slieve Donard, and Newtownards Glen ; S.A.S. Tollymore 

 Park, and Slievenabrock ; H.W.L. Narrow-water, Rostrevor 

 Mountain, Pigeonrock Mountain, and Rocky Mountain near 

 Hmtown; C.H.W. 

 Antrim— Rocks in Colin Glen ; Templeton. Belfast hills, Knockagh, 



Slemish, and SaUagh Braes ; S.A.S. Fairhead ; H.W.L. 

 Derry — Abundant on the basalt; D.M. Trap rocks of Benevenagh, with 

 immature fruit in July ; S.A.S. 



Var. /3 ANGUSTiFOLiA {Juratz.) Braith. 

 Down —Wall west of Bryansf ord {Lett) ; Brit. Moss Flora. 



BARBUXiA Redivig. 



Sect. L. — Llymenostyliuin. 



1. B. curvirostrls (Fhr.) Lindb. (Gymnostomum ILedw.). 



Damp shady rocks — rare. Fr. Sept. {B.M.F.). 



Down— Wet rocks at the head of Moygannon Glen ; H.W.L., and C.H.W. 



Antrim — Rocks at Fairhead (Templeton) ; Flor. Hib. Glen at Cushen- 

 daU ; Moore, op. cit. 



Derry — Sandy places near Derry {R. Broivn) ; Templeton. On Clonty- 

 geragh at 1100 feet, and by the road from Coleraine to Port- 

 rush ; D.M. 



Sect. LL. — Erythrophyllum. 



2. B. rubella {Hoff.) Mitt. (Didymodon B. ^ S.). 



Walls, rocks, gravelly waste ground, and especially abundant on old 

 quarry heaps. Fr. Sept. — Dec. 



Sect. LLL. — Eubarbula. 



