96 FLORA OF ARROCHAR MOUNTAINS. 
RUBUS FRUTICOSUS (sensu laxo). 
Information is not available regarding the distribution of the 
various forms of bramble in the district. They all appear, however, 
to be confined to low elevations, as no member of this group was 
observed on the hills above 1,000 feet. 
RUBUS SAXATILIS, L. 
This species is common on the hills, growing in rock-crevices. 
It is most abundant between 1,000 and 1,500 feet, but specimens 
were found at 2,300 feet on Ben Vorlich, and at 2,700 feet on 
Ben Arthur. 
Rusus CHAM&MorRUwS, L. 
Alpine, and apparently uncommon on the Arrochar mountains, 
although this species is abundant on the hills between Loch Long 
and Loch Lomond immediately to the south of the district. Its 
only records within our bounds at present are, Ben Arthur, 2,200 
feet (see Report of a recent excursion of this Society), and Ben 
Vane, 2,800 feet. 
GEUM URBANUM, L. 
In woods. Low ground only. 
GEUM RIVALE, L. 
_ Common on the banks of mountain streams. Ascends to 2,700 
feet on Ben Arthur. 
FRAGARIA VESCA, L. 
On rocks and banks at low levels. Ascends the slope of Ben 
Narnain in Allt-Sugach to 400 feet. 
POTENTILLA TORMENTILLA, Sibth. 
Abundant everywhere, and at all altitudes, growing on all the 
summits except that of Ben Ime, on which hill it is common 
except.on the very top. This is one of the most characteristic 
plants of the hill-pastures and moors, but is not confined to the 
open, as it occurs in abundance also in bushy places, and in woods. _ 
Nor does the presence or absence of abundant moisture appear to 
affect its distribution, for it grows freely both in wet and dry 
places, although it becomes longer in the stem and more loose in 
habit when growing in very wet situations. 
