1902. Daviks. — Notes on some Mosses in Northern Irelaiid. 1 1 



believe I am right in stating, is not Plenridmni aliernifoliuin, B. and S. 

 but A)-chidiu}n alternifoliuin (Dicks.), Scbp. =: A. phascoidcs, Brid., and 

 that this was the plant intended by Dr. Taylor, seems to be 

 sufficiently indicated by his short description. The only two stations 

 cited in the Synopsis should, therefore, I think, be transferred to 

 A. allenii^oliu/H, Schp., which species is not noted by Moore, The 

 shifting and tossing about, from time to time, of many species of 

 mosses, from one genus to another, b}' various authors, have 

 encumbered them with a mass of synonyms, sometimes more or less 

 confusing. 

 Dicranella secunda, Lindb. — Peaty soil on the top of Colin 



Mountain, Co. Antrim, 

 D. rufesccns, Schp. — On crumbling red sandstone at Derriaghy, Co. 



Antrim. 

 D. Schrctoeri, Schp.— Clayey ground at Munro's Dam by the Moira 

 road, and in a gravel pit at Causeway End near Lisburn, Co. 

 Antrim. 



Var. /3 elata, Schp. — At the foot of an oozy bank by the River 

 Lagan, half a mile below Lisburn, Co. Down ; also at the side of a 

 drain in a boggy field at Fairy Well, lyisburn, Co. Antrim. 



For the type there seems to be no previous record from the 

 North. Moore knew of it only in Co. Dublin (1869), and says 

 " Not hitherto observed elsewhere in Ireland." Dr. Braithwaite, 

 however, in British Moss Flora, gives two prior Irish records 

 Mangerton {Miss Hictchins) and S. of Ireland {Mackay), from speci- 

 mens, as he informs me, in the Hookeriau herbarium at Kew. 



For the variety, a well-marked and much larger plant, I know 



of only one other Irish station. 



DIcranowcisia cirrata, lyindb. — Is widespread around Lisburn, in 



both counties, on trees and the thatched roofs of cottages. On 



thatch it is very luxuriant and fruits freely. 



Campylopus flexuosus, Brid., var. /3 uli^inosus, Ren. ( = var. 



paludosus, Schp.)— In boggy places on Colin and Aughrim. I know 



of onl}- one other Irish record, but the plant is likely not infrequent. 



C. atrovirens, De Not. —With the last in both localities, where it is 



plentiful. 

 C. torcvipilus, B. and S.— Dry bare places on the top of Colin 

 Mountain, Co. Antrim, in great quantity. The loose soil on which 

 it grows is so dry and shallow that much of the moss becomes 

 detached, and is found blown about in scattered heaps. In the 

 North, previously known only in the Mourne Mountains, and 

 Moore was aware of only two other Irish stations. 

 Fissidens pusillus, Wils.— On fallen blocks of Greensand in the 

 upper part of Colin Glen, Co. Antrim. Apparently a very rare plant 

 in Ireland, known only in two other places, both in Co. Antrim, 

 where it was found by Mr. S. A. Stewart. 

 F. osmundotdcs, Hedw.— On dripping rocks at the head of Colin 

 Glen, Co. Antrim. 



