192 ANNALS OF SCOTTISH NATURAL HISTORY 



R.fuscus, W. and N. A widely spread bramble, from 

 Yorks and Derbyshire southward, showing great variation 

 in Herefordshire and Monmouth ; also in Ireland. For 

 description, see " Journ. Bot," 1892, p. 303. 



R. Lecoqui, Genev., and R. muricatus, Boul. et Gil, are 

 not known for Britain. 



R. opacus, Focke. Dr. Focke originally considered 

 R. opacus a hybrid between R. affinis and R. plicatus, but I 

 believe now recognises it as a distinct species which the 

 supposed hybrid much resembles. We do not regard British 

 R. opacus as a hybrid, and it has all along been named or 

 accepted by Dr. Focke as his species. 



R. oreogeton, Focke, was a name suggested tentatively 

 for the Derbyshire plant which has recently been described 

 as R. dmnctorum, W. and N., var. rubriflorus, Purchas. 



R. virescens, G. Braun, var. glandulosa. There are two 

 forms on Beacon Hill, Monmouth, which Dr. Focke first 

 named " R. Myricce, Focke, var. glanduligera" and " R. Myricce, 

 var. virescens, Braun, glanduligera " / the two are nearly allied, 

 but not identical. In the summer of 1894 Dr. Focke saw 

 the plants growing, and withdrew his previous determination. 

 This name consequently disappears. 



R. viridis, Kalt., is a recognised British plant, with a 

 distribution through eleven English vice-counties, from 

 Leicester and Radnor southwards ; also in Ireland. 



The production of this paper has been withheld for some 

 time because many questions of interest have been receiving 

 a solution, through the labours of the Rev. W. Moyle Rogers 

 and others, during the past eighteen months. In its prepara- 

 tion I have gained much from discussion with Mr. Rogers, 

 who has also made some useful suggestions in reading 

 through the MS. It is perhaps needless to say that what 

 I have written should be read with Mr. N. E. Brown's 

 Supplement to " E. B.," part ii., at hand ; without which pre- 

 caution many of my remarks may seem incoherent, if not 

 unintelligible. 



