296 THE DISTRIBUTION OF HEPATIC IN SCOTLAND 
Several localities, as Forse, Langwell, and Dunbeath Strath 
(Lillie). 
ORKNEY.—Kirkwall, on tree (West); Finstown (West). 
PLEUROZIA Dum. 
PLEUROZIA PURPUREA (Lightf.) Lindb. 
J. cochleariformis Hook. 
This conspicuous Atlantic species is generally distributed 
and frequently abundant on wet moors up to 1000 ft. alt. 
in the West Highlands, Hebrides, and North Highlands ; 
continuing frequent, and locally in some quantity, in the 
western part of the East Highlands, but becoming very 
. rare as it approaches the eastern side. It has only been 
found on one occasion in Forfar and twice in Aberdeen, and 
it is very rare in the Spey valley. It appears to be absent 
from North Perth, and is rare in Mid Perth, except near its 
western boundary. Although it is only plentiful from sea- 
level to about 1000 ft. alt. in the West Highlands, it is 
frequent to 1800 ft. alt. and ascends to 2400 ft. alt. This 
is the only Atlantic species which is common in the extreme 
north of the mainland, extending as a frequent plant in 
Caithness, and common in Hoy, Orkney, it being the only 
low-ground species of the group which does not prefer 
sheltered ground. It has not been found in Shetland, where 
it must be very local if present, as such a striking species 
would not be readily overlooked. This species is also found 
in the West Lowlands, but it is local and rare. It is 
frequent on a few hills in Kirkcudbright, descending to 400 
ft. alt. (M‘Andrew), and it has been found in a peat-moss 
at about 150 ft. alt. close to the Solway. Its absence from 
the north of England and from Wales, while at the same 
time it is widely distributed in Ireland and the west of 
Scotland, is one of the most interesting facts in the 
distribution of our hepatics. 
Forms large reddish-purple tufts in peat-mosses and wet 
moors on the low ground, and among boulders and on rock 
ledges on the hills. The mountain plant is larger and 
lighter coloured than the low-ground plant. Inflorescence 
has not been noted in Scotland. 
