298 THE DISTRIBUTION OF HEPATIC IN SCOTLAND 
Upper N. HIGHLANDS.—E. Sutherland: Ben Griam Mohr 
(Lille). W. Sutherland: Abundant about Cape Wrath 
(Hook. cf. Brit. Jung., p. 68); foot of Ben Clibreck, v.c. 
(Lilie). Caithness: Latheron (Lillie); Watten Moss (Lillie). 
ORKNEY.—Hoy (West); Kirkwall (West); Ward Hill, 
Hoy (Lillie); Quoyawa, Hoy (Lillie); Trowie Glen, ete., 
v.c. (Lillie). 
MADOTHECA Dum. 
Porella WUindb. 
MADOTHECA LAVIGATA (Schrad.) Dum. 
Widely distributed from Dumfries to Ross, but un- 
common. It is rare in the West Lowlands, though frequent, 
according to M‘Andrew, in subalpine glens about New 
Galloway. It has not been found in the Upper Clyde 
valley beyond the Lanark neighbourhood. In the East 
Lowlands it is very rare and has not been found in a 
typical state. It has been found in a few localities in Fife, 
but is rare in general in the eastern part of the East High- 
lands, though frequent in some of the more sheltered 
districts further inland. In the West Highlands it is more 
frequent than in the East Highlands, and is not uncommon 
in several districts, though in others it is rare or apparently 
absent. It is locally common in Mull, but has not yet been 
found elsewhere in the Hebrides. It is rare in West Ross, 
and has not been found north of this. It appears to be 
absent in the extreme north of the mainland as well as in 
Orkney and Shetland. 
It is almost entirely a low-ground species, growing in 
moist, shady places about tree roots, stems, and lower 
branches of trees, and on rocks. It is nearly confined to 
glens when in the drier districts, as in the Lowlands and 
the east coast of the Highlands, but in the West Highlands 
it is also found frequently in natural woods at the foot of 
hills. It has been found in one locality among alpine 
species in Mid Perth at 1800 ft. alt. This species occurs on 
limestone and basalt as well as on schistose rocks. It forms 
large dark-green or yellow-green patches, frequently cover- 
ing considerable spaces when on stems of trees. Sterile 
