44 RELATION OF BRITISH FORMS OF RUBI TO CONTINENTAL TYPES. 
pubescens the common London plant we rae always called thyr- 
soideus and a plant I sent him several years ago from t of 
Wight as 6 for thyrsoideus, as defin ad i in Hooker’s ‘ Students’ 
Flora.’ I have myself certainly never collected the genuine : 
thyrsoideus in Brit ain, but see no reason to doubt the Devonshire 4 
lant gathered ae Mr. Briggs between Tamerton and Roborough 5 
(mentioned in ‘ Flora of Plymouth,’ p. 115) being the true plant, 
as understood by Nyman 
11. i eeein I Libert. — What I have as arduennensis from 
France and Germany is like Ky Merten in the panicle ; rhe the 
leaflets are rounded and more densely pubescent, and less white 
beneath. Dr. ape in his ‘ Synopsis,’ sib doubtfully ae 
arduennensis the R. discolor var. pubescens of Babington, bak I feel 
satisfied that this is ne the right place for it. 
Group 4.—Vir 
recent authors tae aa to call discolor is the commonest fruti- ; 
cose bramble we possess. In some places in the South of England, 
as, for instance, along the Undercliff in the Isle of Wight, it has 
the abundant bramble-thickets for miles of country almost entirely 
3 itself. I did not fully realise till this autumn how essentially 
see ad as a whole this was, like Ulew or Erica, a characteris- 
foalky southern and western type. It is abundant enough in 
France a Switzerland, and all through the Mediterranean = on. 
It extends from Portugal and the Azores as far east as Persia and 
Afghanistan, and across the Mediterranean basin to Algeria, am = | 
Morocco. Belgium I saw it as far east as Spa, and it pages to 
8 
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Schott in ome 1818, p. 821, and this is bapted gf Focke and 1 the 
he t Swi eine To the he cited a4 Focke (whi 
i : 
var. pubescens Bab., which recedes from the type oo 
the directions of leucostachys, is, I think, essentially identical te 
the South European R. Linkianus Gusson ne. It grows abundantly — 
ou the = Taare - es the road between Virginia Water Station — 
and the Wheatsh 
14. R. Li Vest (. bute Mull.; R. rhamnifolius Wirtg- 
non W. & N.). — This differs from the last by its non-pruinose 
barren stem and Saeed paiiiele-raohien with slender straight 
