MOORE ON NEW BRITISH AND IRISH MOSSES. 291 



ties of Ireland denotes the near approximation of climatical circum- 

 stances to those of more southern and warmer countries. For example, 

 among Mosses, I may mention Hookeria Icetivirens, a West India spe- 

 cies; also Daltonia splachnoides . Among Lichens, Sticta macrophylla, 

 Sticta elegans, and Chiodecton cdbidum, not forgetting the well-known 

 Killarney Fern, Trichomanes radicans. 



The species I have the honour to bring before the Societ)^ this 

 evening are not, probably, so interesting in these points of view as are 

 those which I have named ; yet one is new to science, two to the Flora 

 of the British Islands, and two more to the Irish Flora. 



That new to science is Campylopus intermedins ("Wilson MSS.), 

 which has been collected in England by Mr. Wilson, and also by Mr. 

 Hunt, of Manchester. In Ireland it has been in my herbarium ever 

 since 1844, under the wrong name of Dicranum longifolium, for which 

 it was mistaken; and it is only lately Mr. Wilson has thoroughly in- 

 vestigated the matter, who now finds the true D. lo7i(jifolium has not 

 yet been discovered to grow in Britain ; and, further, that this plant 

 has not before been described. It has not been found in a fruiting 

 state ; but I have barren specimens from Kelly's Glen, county of Dublin, 

 and also from the county of Wicklow. 



Campylopus Schwarzii (Schimper) is new to the British Flora, and 

 a beautiful Moss. The fruit has not yet been discovered in Bri- 

 tain, and it has been collected only in one other locality out of Ireland. 

 The examples before you were collected by me on the top of Carran- 

 tual Mountain, county of Kerry, at an elevation of nearly 3000 feet 

 above sea level ; and again on the top of Nephin Mountain, county of 

 Mayo. It grows in dense silky tufts, and might easily be overlooked, 

 as it no doubt has been by the late Dr. Taylor, and others. I am indebted 

 to Mr. Wilson for its identification. 



Barbula recurvifolia (Schimper) was collected by me on the Conne- 

 mara Mountains, in a barren state, several years ago ; and also at Muck- 

 ross, Killarney. 



Gymnostomum tortile (Schimper) has not hitherto been recorded in 

 Ireland. The plant under that name in "Flora ITibernica" is now known 

 to be Trichostomum crispulum, which Dr. Taylor mistook for the Gym- 

 nostomum tortile. It has been found on limestone rocks in Derbj'shire, and 

 also in Sussex ; but the specimens before the Society are the first Irish 

 examples of the plant which I know of having been collected. They grow 

 on large limestone boulders at Castle Taylor, county of Galway, where 

 I observed them early last month. 



Pottia Wilsoni (Hooker) is now for the first time clearly under- 

 stood to belong to the Irish Flora. It is the same plant I had the 

 honour to bring before a meeting of the late Dublin University Na- 

 tural Science Association, under the name of Pottia crinita. It was 

 named so by Mr. Wilson, who recognised it this year as Pottia Wil- 

 soni, and not P. crinita, which has not yet appeared in Ireland. The 

 only Irish habitat known for this Moss, that I am aware of, is the Hill 



