Lett — Census Report on the 3Josses of Ireland. 73 



William Wilson (1799-1871) belonged to Warrington, where he was born, 

 died, and was buried. In his "Bryologia Britannica" (1855) he gives "Ireland" 

 as the locality for 86 mosses, of which one is a Sphagnum, viz., the species 

 rubellum. He paid a long visit in 1829, from July to December, to Cork and 

 Kerry, for the purpose of investigating the mosses and hepatics of the south- 

 western counties. His " Bryologia Britannica " added 27 species and varieties, 

 including several of his own collecting, to the Irish moss flora. These were 

 Didymodon denudatus, Grimmia patens, G. campestris. Tortilla ericaefolia, 

 T. Vahlii var. subflaccida, T. lamellata, 3/ollia Mbernica, Plcurochacte squarrosa, 

 Leersia laciniata, Orthotrichum tcncllum, Weissia coarctata, W. Drummondi, 

 Philonotis Wilsoni, P. rigida, Bryum pallescens, Hedivigia imberbis, Isopterygium 

 elegans, I. depressum, Amblystegium polygamum, A. palustre var. subsphacri- 

 carpon, A. ochraceum, Hypnum striatulum, II. pallidirostre, Fissidens incurvus 

 var. tamarindifolius, F. osmundoides, Barbtda lurida, Sphagnum rubelhim. 



David Moore, ph. d., born at Dundee, 1807, died at Glasnevin, Dublin, 

 9th June, 1879, passed 51 years in the service of Irish botany, first as assis- 

 tant to J. T. Mackay, the Director of Trinity College Botanic Garden, then 

 on field work on the Ordnance Survey of Ireland, during which time he 

 made good use of the opportunities he had for studying and collecting mosses 

 in many of the counties of Ireland, and lastly as Director of the Royal Dublin 

 Society's Botanic Gardens at Glasnevin. In 1858 a paper by Moore, entitled 

 " Observations on the Mosses of Ireland," was published in the Royal Dublin 

 Society's "Journal," which added 16 species to the Irish list. In 1872 his 

 " Synopsis of the Mosses of Ireland " was published in the Proceedings of the 

 Royal Irish Academy. This added 36 species, and left the total of Irish mosses 

 at 377. Dr. Moore gives not only the localities, but also briefly describes the 

 generic and specific characteristics of each plant. This was the first contribu- 

 tion to anything like a census of Irish mosses ; it was much better in this 

 way than Dawson Turner's work, but it was still very imperfect, and wanting 

 in several respects. Moore also drew up a list of Dublin and Wicklow mosses 

 for the meeting of the British Association in Dublin in 1878, which was pub- 

 lished by the Royal Dublin Society ; it records 273 species and 7 varieties ; 

 and he contributed from time to time several papers concerning the discovery 

 of new mosses in Ireland to the Proceedings of the Dublin University 

 Zoological and Botanical Association. A full list of Moore's writings on 

 Irish mosses is given in the Bibliography, Nos. 49 to 58. 



The additions made to the Irish moss flora by Moore were these 67 species 

 and varieties : — Sphagnum tenellum, S. Jimbriatum, S. Girgensohnii, Andreaea 

 crassinervis, Poly/richum gracile, Fissidens decipiens, F. virididus, Anisothecium 

 crispum,A. GrecUlei, Didymodon denudatus var. alpimis, Gampylopusintroflexus, 



R.I. A. PUOC, VOL. XXXII, SECT. B. [ilf ] 



