338 MOSS FLORA OF THE WEST RIDING OF YORKSHIRE. 



Ill this paper I heave given four Ksts, viz. (1) Species new 

 to the Riding since the piibhcation of my last list; (2) Species 

 recorded in 1873 list, but since found in fresh localities ; 

 (3l Species known to occur in the Riding before my list was 

 published, but not recorded therein, from not being known to me 

 at the time ; (4) Species recorded in that list in error. The 

 number of species known to occur in the Riding will now be as 

 follows : — 



Recorded in 1873 list 294 



Less recorded there in error (List 4) . 8 



286 

 New species recorded (List 1) . . . . 48 



Total ... 334 



Add to these the number of species found in new localities (as 

 given in list 2), 142, we shall have a fair idea of the work that has 

 been done in this department during the last six years in our own 

 division of the county. 



Of the species given in list 1 a few require some further remark. 



SeU(/eria trhticJia, Brid. This moss, first discovered in Britain 

 in the Blair Athole district by Miss Mclnroy, in 1860, has now 

 been found in another locality — and that in the W. R. on dripping 

 limestone rocks at Litton in Arncliffe dale by Messrs. S. Ashton 

 and J. "Whitehead, in June, 1878. The locality given in Schimp. 

 Syn. 2iid. ed., p. 856, "in rupibus calcariis pr. Castleton Angliae 

 (Whitehead) " is an error, as Mr. Whitehead states he never either 

 gathered or recorded it from that place, and has, since his attention 

 was called to it, searched the locality twice in vain for it. Jaeger in 

 ' Adumbratio ' gives its distribution as wet calcareous rocks in 

 shady places in the German, Swiss, Austrian, and Italian Alps. 



Aulacomnium turgidum, Wahl. This moss again is not only 

 new to the Riding, but also to Britain. It was gathered by Prof. 

 Barker on Ben More about eight years ago (1871), and again by 

 Messrs. Lees and West on Whernside in 1878, but in neither case 

 was it recognised at the time. The Ben More specimens were 

 identified by Rev. J. Fergusson in September, 1878, and the 

 Whernside plant by Mr. Boswell some little time afterwards. 

 Distribution : the Norwegian Alps, Lapland, Greenland, Styria, 

 and Northern America. 



Fontinalis (jruciJis, Lindb. This is another of Prof. Barker's 

 discoveries, at Malham Cove, in 1876, and has since been gathered 

 there by myself and Mr. Geo. Brook, F.L.S., in 1879, but without 

 fruit. It had previously been found in Scotland by Messrs. 

 Fergusson, Roy, Bisset, and Anderson, in various localities. 

 Distribution : Silesia, the Black Forest, Wildbad, Bohemia, and 

 Finland. 



riagiothccium nilididum, AVahl., was first discovered as a York- 

 shire and British Moss by Messrs. Wliitehead and Percival at 

 Heseltine Ghyll, Penyghent. Its distribution appears to be 

 [Jaeger's Adumbratio, where he refers it to Isoptenjijium nitiduw, 



