ORIMMIACE^. 223 



Antrim— Slemish ; D.M., 1836, Phytologist ser. II., vol. II. In large 



barren tufts on Slemish ; S.A.S. 

 Derry— At 1100 feet on Clontygeragh ; D.M. 



There is a note by Templeton " Found, mixed with Hyp. Jilicinum, on 

 the left branch of Colin Glen river, beside the second fall, 1803.]' This 

 is doubtfully correct, but if right it was the first discovery of this species 

 in Ireland. Templeton says " Dickson's plant appears more leafy, leaves 

 •when highly magnified are slightly serrate, a brownish red medrib, and 

 finely reticulated." Probably the Colin Glen plant was merely a form of 

 the next species. 



Sect. IV. — Trichostomum. 



15. C acicularls {Linn.) C. Muell. 



Rocky river banks, and stones in wet places — common. Fr. Nov. — 

 April. 



Var. /3 DENTioiTLATA Wilson. 

 Of frequent occurrence. 

 Cave HiU ; Templeton. Colin Glen, and Carr's Glen; /, E. Davies. 

 By streams in Glendivis and "Windy Gap ; S.A.S. 



16. 6. aquatlca [Brid.) 0. Muell. (Rac. protensum Braun). 

 "Wet rocky places — rare. Fr. March — May. 



Down — Mourne Mountains ; T. Drummond. In several places between 

 Donard and Tollymore ; S.A.S. Slieve Bignian, Tieve- 

 docharrah, Lough Shanagh, Slievemeel Beg, and Slieve Donard; 

 H."W.L. In Rostrevor Wood, and rocks near Hilltown; 

 C.H.W. 



17. G. beterostlcba C. Mttell. (Racomitrium Hedw.'). 



Stony heaths— very common on the mountains, ascending to 2000 feet. 

 Fr. Nov.— April. 



Var. ALOPECTJRUM Br. et Schimp. 

 Down — On Thomas Mountain, and on the lesser cairn of Slieve Donard ; 



H.W.L. 

 Antrim — On rocks of Slemish ; S.A.S. 



"Var. GRACiLESCENS Br. et Schimp. 

 Down — Moume Mountains ; T. Drummond. Slievenabrock, and Slieve- 

 namady ; H."W.L. 



18. G. fasclcularls {Schrad.) C. Muell. (RACOMiTRirM Brid.). 

 On rocks and stones in hilly and heathy places — common. Fr. Nov. — 



March. 



