112 THE DISTRIBUTION OF HEPATIC IN SCOTLAND 
species in Scotland. Although it is rather uncommon in 
the region of cultivation in the Lowlands and east part of 
the country, it usually occurs in abundance in their sub- 
alpine regions and over the whole of the Highlands and 
Islands, extending to the summit of the hills to 4400 ft. alt. 
It is very rare, though occasionally occurring, on limestone ; 
but, as this formation is uncommon in Scotland, it hardly 
affects its general distribution. It is found in almost every 
situation, except on trees; it frequently forms a carpet on 
gravelly footpaths in the Highlands, or covers turfy walls 
and banks. It is also common on wet ground on the hills, 
especially on rocks in streams, where it may form erect, 
compact, submerged green masses; such forms are sterile, 
but otherwise the species fruits in quantity from March 
to May. 
Ben Lomond, 1822 (Grev.). 
S.W. Low3aNnps. — Dumfries: Nr. Craigs, Dumfries 
(Cruicks.); Whitecombe, several places (Johns.); Moffat 
(Miss Macv.); Langholm (Ewing); Sanquhar district, R.U. 
(Macyv.); Crichope (Macv.); Wanlockhead (Macv.). Kuirk- 
cudbright: New Galloway (M‘And.); Screel Hill (A. Murr.) ; 
Glen Trool (Macv.); Portmark (G. West). Waigtown: 
Portpatrick (M‘And.); Aldouran Glen, roadside (Macv.); 
Glenluce (Macv.); nr. Penningham (Macv.). 
N.W. Lowianps.—Ayr: Ayrshire (Lyon); Largs, cfr. 
(Ewing); Fairlie (Ewing): Loch Doon (West); Glen Afton, 
F. (Macy.). Renfrew: Lochwinnoch (Ewing); Loch Thom 
(Ewing); Misty Law (Scott). Lanark: Hamilton (J. 
Murr.); Carstairs Moss (Macv.); Falls of Clyde (Ewing) ; 
Tinto, to summit (Macv.); Elvanfoot district, c. (Macv.); 
Leadhills and Green Lowther summit (C. Macy.). 
kK. LowLtanps.—Peebles: West Linton (Evans); Medwyn 
Water (Evans); Carlops (Evans); Broughton (Macey.); 
Upper Tweed valley, c. (Maecv.). Selkirk: Crosscleugh 
Burn (Evans); Tushielaw (Evans); Bowhill (Evans); 
Lindean, roadside, u. (Macv.). Roxburgh: Linhope (Miss 
Macv.); Eildon Hill, 800-1300 ft., v.c. (Macv.). Berwick: 
Nr. Lammer Law (Evans); nr. Seenes Law (Evans); Long- 
formacus (Miss Maev.). Muddington: Lammer Law, 
several places (Evans); Gifford (Evans); Salton Wood 
