118 THE DISTRIBUTION OF HEPATIC IN SCOTLAND 
Helmsdale (Lillie). W. Sutherland: Strath Naver (Lillie). 
Caithness: Langwell (Lillie); Watten, cfr. (Lillie). 
SHETLAND.— Yell (Sim); Unst (Sim). 
var. COLORATA Nees 
E. LowLanps.— Edinburgh : Rosslyn Wood (Evans). 
W. HicHianps.—Clyde Isles: Glen Chalmadale, Arran 
(Macv.). 
NARDIA OBOVATA (Nees) Carr. 
Generally distributed except in the low-lying parts of 
the Lowlands and East Highlands. Is rare in the West 
Lowlands, except in the subalpine region, where it is 
occasionally frequent but not common. Is very rare in 
the East Lowlands, and is confined to the subalpine region, 
seldom occurring below 1200 ft. alt. It is common over 
all the hilly districts of the Highlands, descending to sea- 
level and ascending to 2500 ft. alt. in Inverness and 3200 ft. 
alt. in Perth. 
It grows in dark-green tufts on wet rocks, especially by 
the side of streams, also on marshy ground on the hills. 
The size of the plant varies from a small form on decaying 
rocks on the low ground (v. minor Carr.) to large forms on 
dripping rocks (v. elongata Nees) and as a submerged form 
(v. rivularis Schiffn.). These wet-ground forms have 
paler rhizoids and thinner walls of the leaf-cells. 
Perianths are usually present except in the submerged 
plant, and fruit is very common. It is found mature from 
April to June‘on the low ground, and to August on the hills. 
S.W. LowLanps.— Dumfries: Penton Linn (Scott); 
Crawick Water (Maev.). Kirkcudbright: New Galloway 
(M‘And.); Carsphairn (West). Wigtown: Knowe (Ewing). 
N.W. LowLanps.—Ayr: Barrhill (Ewing); Loch Doon 
(West); Ladyland (Scott). Renfrew: Gourock (Kwing) ; 
Lochwinnoch (Ewing); Glen, Misty Law, several places, 
cfr. (Scott). Lanark: Falls of Clyde, cfr. (Young); Aller- 
shaws Burn (Maev.); head of Evan Water (Macv.); Green 
Lowther, cfr. F. 1700-2000 ft. (Maev.). 
E. Lowianps.— Peebles: Logan Water, alt. 1200 ft. R. 
(Maev.); Carton Burn, alt. 1250 ft., r. (Macv.); Talla W., 
R.c. above 1000 ft. alt. (Maev.). Selkirk: Glenkinnon 
