4 



The Irish Naturalist. 



January, 



Flssidens incurvus, De Not — Frequent on banks at and in the 

 neighbourhood of Lena lerg. An addition to the county list, and 

 seems to be rare in Ireland. 



F. bryoldesy Hedw., var. = F. Inconstans, Schp.— On decayed wood 

 and on stones in R. Bann at Lenaderg. A very curious little Fissidens, 

 in which the fruit, although not actually axillary, is on a very short 

 lateral branch at the apex of the stem, often two setae springing 

 from one perichaetium. Mr. Bagnall, who has gathered the moss in 

 England, has examined some of the specimens sent to Mr. Dixon, and 

 says it agrees well with what he has seen of it before. Dr. Braith- 

 wait6, Mr. Dixon, and some other authors do not admit it as a 

 distinct species, but regard it rather as a curious form or sport. The 

 time of fruiting (May, 1904), and habitat are different from those of 

 F. bryoides proper. 



F. rufulus, B. & S.— Abundant in fissures and on the face of rocks in 

 swiftly-running water in R. Bann at Knockuagor. C. fr., 12th July, 

 1904. Very rare. 



F, deciplens, De Not. — Rocks by the Bann at Knocknagor. Very 

 rare in Ireland. 



Fp taxlfollus, Hedw.— An unnamed variety of this common species 

 occurs, mostly under water, on stones and on decaying wood, in several 

 places on the Bann at Lenaderg and Stramore. A tall plant with 

 setae from the middle of the stem. In specimens from one locality 

 the characters are still more abnormal, the leaves being longer, more 

 acute, and the nerve distinctly vanishing below the apex. Mr. Dixon 

 and Mr. Salmon have this under consideration, and think it probably 

 merits description as a variety. The same plant had previously been 

 found in one or two places in England. 



Crlmmla trlchophylla, Grev.— Walls at Lisnafiffy. 



Pottia minutula, Furnr.— By the sea at Ringfad Point. 



Barbula recurvlfolia, Schp. {B. refiexa, Brid.). -In sand on the right 

 bank of the mouth of the Shimna River at Newcastle. A strong 

 form approaching var. robusta, but not that. Moore's plant from 

 Ben Bulben has been noted as that, but it is not so stated in his 

 Synopsis. 



Welsia crlspata, C. M.— Rather plentiful on the shady side of •* The 

 Rock " at Newcastle. Very rare in Ireland. 



W. calcarea, C. M. — Abundant in large dense patches on a lime- 

 washed brick wall at Lenaderg. Sterile. The Cork plant, also 

 sterile, mentioned above, Mr. Dixon adjudges to be an extreme form 

 of var. mutica, Boul. 



W. vcrticlMata, Brid.— On calcareous deposit at Ardglass Bay. 



Trichostomum mutablle, Bruch, var. cophocarpum, Schp.— 

 On " The Rock " at Newcastle. The type, as recorded in Fl, N.-E. I. 

 still grows there, and var. littorale was noticed at the same spot, but 

 these two mosses are not infrequent along the coast. 



Bartramia ithyphylla, Brid —Rocks by R. Bann at Knocknagor. 



