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tenacity of the plant in its chosen habitat, and the tenacity of Mr. Watkins' 

 memory. We had been tramping the bog for some time in vain, when, at one of 

 the deepest and most dangerous-looking spots we had met with, Mr. Watkins 

 said to me, "As far as I can remember, within a foot or two, this is the spot 

 where once I found the — " he did not need, however, to finish the sentence; for one 

 of us, stooping down to where his hand was pointing, exclaimed '" Wh}- here it 

 is ! " And there, no mistake, it was : and there, I believe, it is to be found most 

 years, if you can hit upon the exact spot. This is the only member of this curious 

 family of mosses known at present in the Woolhope district ; yet Tetraplodon 

 mnioides wiU no doubt, one da}-, reward some diligent searcher among the 

 Llanthony or Radnorshire hills. This, however, like its congener, needs many a 

 mile of weary moor-plodding to find. Among the curly-leaved Hypna which 

 show a preference for wet places on hill-tops, fluitans, reiolven^, and convnutatum 

 are common in the Llanthony district ; the latter, however, less so than its near 

 aXiy falcatum. 



Leaving the hill-tops for the small glens, we get a much more luxuriant 

 growth of mosses. For luxuriance and abundance of a few species, I do not know 

 any place in our district to equal some spots in the small glen descending opposite 

 Llanthony Abbey, and named Cwm Bwchel. Some of the cool shady spots under 

 the cascades here are truly magnificent in their moss clothing ; and a few rarer 

 species will be met with, to add a scientific to the sesthetic interest. Here the 

 pretty little Seligeria recurvata is not uncommon ; Trichostomum nitidum, easily 

 told from Barbula tortuosa in a dry state by its hard unyielding cushions when 

 pressed with the finger, raises its round bosses upon the rocks. Grimmia 

 trichopki/lla is abundant ; the exceedingly curious Diphiiscium foliosum is not 

 ' rare. Here the beautiful Bartraniia Halleriana is scantily found, while its con- 

 gener Brcutdia arcuala is more plentiful, but barren. Here, too, is the only spot 

 in our district where Eurhi/nchium Teesdalii has hitherto been found ; Mr. 

 Boswell pointed it out to nie here' this spring. Another beautiful hypnoid, 

 Hylocomium flagdlare ought to be searched for here, but has not yet been found ; 

 though it occurs in similar spots upon the Elan, near Rhayader, and in a glen 

 at Llandogo, Monmouthshire. 



But some of the most interesting spots in the Llanthony district for mosses 

 are the rocks skirting the hills on the right hand side of the valley for several 

 miles, forming cliffs, the largest of which takes the name of Taren Esgob. 

 Though exposed and wind-swept, several mosses are here found which are not 

 elsewhere known in our district. For example, the curious Zieria julacea and 

 Bryum filiforme, Bartramia Oederi and Plagiothecium pulchellum all grow in 

 close proximity to the Asplenium viride, and the remarkable flowering plants 

 Meconopsis Camhrica and Pyriis rupicola, just on the edge of the counties of 

 Monmouth and Brecon. Gymnostomum rupestrc covers large spaces on the 

 rocks, as does also Amphoridium Mougeotii. Blindia acuta is also not rare here, 

 recalling the Alpine parts of Wales and Scotland ; here, however, it is smaller and 

 barren. Here, too, and iu a smaller cliff of the same sort just above Longtown, 

 in Herefordshire proper, I have found the pretty Encalypta ciliata in plenty, and 

 in very fine fruit. 



