HYGROBIELLA 215 
Kast Lowlands or in Fife, though it might be expected to 
occur in the Talla district of the Tweed. It is frequent in 
the subalpine region of the East Highlands, and is rather 
common on the hills, ascending to 3400 ft. alt. in Mid Perth. 
It is also frequent on the lower slopes of the hills in the 
West Highlands to sea-level, and in the Inner Hebrides, 
but is rare on the higher levels. It has only been found 
in a few localities in the North Highlands, probably in 
some measure owing to its small size causing it to be over- 
looked, as it has been found in several places in Shetland. 
It has, however, not been found in Orkney or Caithness. 
It occurs in both schistose and granite formations, and is 
very common in one limestone region in Skye. It forms 
dark-green or nearly black patches on wet rocks, most 
frequently at the sides of streams, also occasionally on soil 
on damp roadsides. It is commonly unmixed, though 
frequently among mosses. Perianths are usually present, 
and fruit is not rare, especially when in elevated localities. 
S.W. LowLanps.— Dumfries: Crichope Linn, R. (Macv.). 
Kirkcudbright: Lowran Burn (M‘And.); Knockmarling 
Burn, per., alt. ca. 300 ft. (M‘And.); Glen Trool, ¢ (Macv.). 
N.W. Lowianps.—Ayr: Ladyland, per., among Nardia 
obovata, ete. (Scott). Lanark: Stream 8. of Elvanfoot, 
v.R. (Macv.). 
S.E. HigHianps.—S. Perth: Ben Venue (Carr. cf. Pears. 
Hep. Brit., p. 199); Strathyre (Macv.). Mid Perth: Killin 
district, c. both on low ground and on the hills to 3400 ft. 
alt., cfr. u. (Macv.); Ben Heasgarnich (Ewing); Tyndrum 
district, c. both on low ground and on the hills, as Ben 
Laoigh, Ben Dubh Craige, and Ben Odhar (Macv.); Glen 
Dochart (Young); Am Binnean (Ewing). NV. Perth: Glen 
Tilt, alt. 1500 ft. (Ferg.); Glen Sochaidh (West); Glen 
Beg, Glen Shee, # (Ferg.); Glen Thaitneich, per. and $ 
(Ewing and Young). 
Mip E. HicHianps.—Vorfar: Auchphersie (Ferg.); above 
Afflochie, alt. 1200 ft. (Ferg.). Kincardine: Clochmaben 
nr. Banchory, cfr. (Sim cf. Spruce On Ceph., p. 75); Dalfro 
Bog (Sim). S. Aberdeen: Loch Kellerton, per., 1842 
(Dickie) ; Peter’s Hill, Birse, per. (Sim); nr. Potarch, per. 
(Sim) Lion’s Face, Braemar (Stabl.). 
