308 THE DISTRIBUTION OF HEPATIC IN SCOTLAND 
LEJEUNEA Lib. 
LEJEUNEA CAVIFOLIA (EHhrh.) Lindb. 
L. serpyllifolia Lib. 
Widely distributed over the Lowlands, and generally 
distributed over the Highlands to Shetland. It is rare over 
considerable tracts of the Southern Uplands, where little 
rock is exposed, and in the Lowlands in general it is almost 
confined to shaded rocky glens. In the West Lowlands it 
is frequent in such glens, and is sometimes common, 
especially in subalpine districts. It is rare in the Upper 
Clyde valley. It is rather rare and local in the East 
Lowlands, though frequent in some glens. In Fife and the 
coast neighbourhood of the East Highlands it is frequent, 
and is common throughout almost the entire hilly districts 
of the Highlands and the Hebrides. It has been found in 
a few places in Orkney and Shetland, but appears to be 
uncommon on the former and rather rare on the latter. 
This species ranges from sea-level in the Lowlands to 3300 
ft. alt. in Mid Perth. It is most common on the lower 
ground of the Highlands, but is also frequent on the hills, 
especially in Mid Perth. In the drier districts it is almost 
confined to rocks: in the West Highlands it is also frequent 
on trees. It is found on various formations, as_ schist, 
gneiss, granite, basalt, limestone, and sandstone, and is at 
times common on them all. It also grows on different 
kinds of trees. Forms light-green patches, generally almost 
white when dry, or occurs as scattered stems among mosses. 
Perianths are common, but fruit, mature from March to 
June, is rather uncommon, and is most frequent when on 
trees. 
S.W. LowLanps.— Dumfries : Moftat (M‘And.) ; Inglestone 
Mill, per. (Scott); Sanquhar district, L.c. (Macv.). Kurk- 
cudbright: Dalskairth Wood, 1840 (Gray); New Galloway, 
many places (M‘And.); Creetown (Macy.); Penkill Burn, 
c. (Maev.); Glen Trool, r.c. (Maev.). Wigtown: Nr. Port- 
patrick (M‘And.); Loch Ryan, per. (Ewing); Knowe 
(Ewing); Glen Luce (Maev.). 
N.W. Low.anps.— Ayr: Largs (J. Murr.); Darvel 
(Ewing); Alloway Brig (Ewing); Glen Afton, F. (Macv.). 
