82 A NEW BRITISH RUBUS. 
These are curious instances of two species, unknown in the Arctic 
region outside the British Isles, having through their representatives 
a very wide range indeed in the tropical region. I w 
that the theory of certain in eryptogams of tropical types having per- 
sisted at Killarney, possibly since Pliocene or even Miocene times, 
derives additional support from the presence there of a few animals 
which differ w widely from all other European species, notably the 
elegant pond-snail, Limnea involuta, in the waters ~ nee lakes, 
and the pretty spotted slug, Geomalcus maculosus, their rocky 
borders. These molluses, like the —— hepatics, may have been 
able to resist ii cold and the long winter sleep, which would be 
sae sh fatal to animal life of higher grades, as they would be to all 
co-existing phanerogams of tropical types. 
—Page 36, last line of text, for *h” read * §”; line 7 from — 
Rijbra " 767 ” insert * 389.” Page 39, line 5, after “* Nees!” dele “ined.” ; 
cucullata should be in small capitals, not in amuses 
A NEW BRITISH RUBUS. 
By Epwarp F. Linton, M.A. 
A Rubus which I have been investigating for about four years 
has eventually been admitted to be distinct from any named British 
E i Dr. W. O. 
only along a sandy hedge-bank. In general aspect and mode 0 
growth like R. Bellardi Weihe, which is frequent in some of the 
copses of this neighbourhood, it differs considerably from it in the 
armature, and the glabrescence of the more angular barren 
stem ; and both Prof. Babin ington and, on a former occasion, Mr. 
.G. Baker have referred it to the ae Section, the former 
expressing the opinion that it would stand near R. scaber. When 
Prof. Babington, who has invited me to publish a description of it, 
is not yet appropriated. 
ubus lucens Linton.—Stem weak, nearly — angular, 
occasionally rooting at the tip, glabrous or slightly hairy, with 
“ moderate seetiani ena prickles small, dae Sa declining 
— a short narrow base; leaves ternate, sc sometimes doubly 
errate ; leaflets flat, rather thick, usually cuspidate, shining above, 
ear ey hairy ani greenish- felted heuedth, lateral anehrcben 
bers not commonly with a lower lobe, terminal obovate ; pore 
tose and denbabe hairy, its branches short, mostly simple, erect: 
