AN AFTERNOON S RAMBLE. 



185 



common is this locality ; having had, for two years, several of them located 

 in some grotto-work formed of stone, shells, and clay, situated in my garden. 

 So far, our stroll was at an end, arriving at home at five o'clock. 



Must now bring my rather lengthened "leisure hour" No. 1, to its termi- 

 nation, fearing I have already trespassed too long on the patience of your 

 readers ; but shall feel amply rewarded, if, by my humble endeavours, I am 

 the instrument of inducing others to study Nature for themselves. 



Ivy Cottage, Grove Place, May lUh, 1855. 



NEW STATION FOR LECANORA RUBRA, Ach., 

 (LICHEN ULMI, Swarts.) 



BY GEO. DIXON, ESQ. 



Anxious to visit the oolitic formation of Yorkshire, hoping the lime- 

 stone of that series would yield species of Lichens not to be met with on 

 our Cleveland lias, or the basaltic dike that runs through it, I proceeded 

 a few weeks ago, in company with my fi-iend William Mudd, down Bils- 

 dale, to the magnificent ruins of Rievaulx. We were both much disap- 

 pointed in our expectations ; for, as soon as the oolite came on, the paucity 

 of species common on the lias was most striking, and we at once saw the 

 superiority of our own district over the one we had now entered. However, 

 we felt amply rewarded for our journey, by discerning on old Elm-trees, on 

 the margin of the Rie, the elegant Lichen, Lecanora rubra. In all our cor- 

 respondence and exchanges of specimens, it had not before come into our 

 hand, from which we were led to conclude it was extremely local. As the 

 figure in English Botany, t. 2218, is from a specimen found by Wm. Borrer, 

 on the bark of old Elm-trees, near Greta Bridge, Yorkshire, and W. J. 

 Hooker giving the same locality and authority, I forwarded the former 

 gentleman a specimen, and received from him the following kind note : 



" Dear Sir, — I am glad to see Lecanora rubra from a new place. I have 

 not a duplicate left of my own gathering, nor have I ever met with the 

 species again, since I found it near Greta Bridge in 1810; unless some 

 patches of Thallus without ApotJiecia, on Elms near Malvern. I cannot direct 

 you to the one tree on which I saw it in 1810. I only know that it was in a 

 hedge, near a footpath by which I was walking from the Inn at Greta Bridge, 

 to the bridge over the Tees, by Eggleston Abbey. In a visit to Greta Bridge, 

 a few years ago, I sought for the place in vain, not finding even the footpath. 



" My other British specimens of this Lichen are, two morsels from Dickson, 

 marked by him, ' Lichen marmoreus, on tvoodj and another morsel from Mr. 

 Salwey ' on decayed moss, from Wigmore Castle, Herefordshire.' — I am, dear 



