ON SOME SCOTTISH BUBI. 45 



Lake of Monteith, and between it and Aberfoyle. M.P. Knock of 

 Crieff. S. About Stirling and Gargunnock ; in great quantity. 



D. Ballocb. I also bave dried specimens collected by tbe Rev. 



E. S. Marsball last summer at Crianlaricb (M.P.). I do not 

 remember baving ever seen living busbes of tbis species out of 

 Scotland; but some 1893 and 1895 specimens from Mr. J. E. Grififitb, 

 collected at Valley, near Holybead (Anglesea), seem identical -witb 

 tbe Scottisb plant. I sbould say tbat its nearest allies in our list 

 are B. jndcherrinnts Neum. and R. Lindeber(jii P. J. Muell. ; but its 

 peculiar leaves, glabrous stem, and very different colouring make it 

 recognizable from botb at a glance ; nor do I tbiuk it possible for 

 any careful observer to confuse tbe living busb witb otber British 

 forms. Tbe following are its most marlied characters : — It grows 

 in large, ratber low, circular masses, wicb glabrous sbining stem, 

 green rbamnifolian nearly glabrous leaves, a remarkably broad sub- 

 rotund-cuspidate terminal leaflet, and a long very narrow more or 

 less flexuose panicle witb large flowers, long stamens, pinkisb-lilac 

 petals, and grey-green sepals, wbich are only loosely reflexed on tbe 

 fall of tbe petals, and become more or less subpatent afterwards. 



R. Lmdehergli P. J. Muell. W.P. In tbe bigber part of tbe 

 Callander Crags ; just tbe continentcil and ordinary Englisb form. 

 Also brought to me fresh by my son from the neighbourhood of 

 Aberfoyle. 



R, duwnoniensis Bab. A. Oban ; extraordinarily abundant in 

 rocky places above tbe town, in very handsome wide-spreading 

 masses, usually to the exclusion of all otber brambles. Tbis is 

 proving to be one of our most widely distributed and most constant 

 species. 



R. villicaulis Koehl. The form wbich I described in Juurn. Bot. 

 1894, 43, 44, as "var. c. insularis (F. Arescb.)'' is one of the most 

 abundant and most characteristic of Scottisb brambles. As I showed 

 when describing it, it is very distinct from vars. Sehneri and calvatm; 

 but I had to own then that I was "at a loss to name any very 

 defiinte characters by which to separate this var. from tbe typical 

 plant." Now, on my sending to Dr. Focke a good series of the 

 Scottish form labelled " /i'. villicaulis Koehl. var. insularis (F. 

 Arescb.), or form near it," he writes to me, " Tbe form called 

 /('. insularis Arescb. is the true typical R. villicaulis, first described 

 from Silesia, E. Germany. The common form of N. Germany is 

 much more like your English R. calvatm." I am not sure tbat we 

 have quite this " common form of N. Germany " in Britain ; but we 

 have something very near it, if not identical with it, in S. Dejvon, 

 and probably sparingly elsewhere. Omitting tbat for the present, 

 our list of forms is reduced to typical R. villicaulis (= R. insularis 

 F. Arescb.), and tbe two very strongly marked varieties or sub- 

 species, R. Selmeri Lindeb. and //. calvaius Blox. R. calratus has not 

 yet been observed in Scotland, but R. Selmeri is extraordinarily 

 abundant, and tbe typical plant hardly less so. Thus in W.P. tbis 

 type is especially strong and handsome on tbe Crags and elsewhere 

 about Callander, extending to L. Earn northwards and to Aberfoyle 

 westwards. I also saw it about Killin in M.P., at Oban in A., and 



