FLORA OF SCOTTISH LAKES 
243 
moor around is flat and treeless, and the water is peaty. Banks 
of peat usually separate the water from the moor, but occasionally 
the shore is stony or is formed of flat rock, particularly on the east 
side, which is rather bare of littoral vegetation. The western margins 
are marshy, especially near the affluent, and support a considerable 
vegetation, associations of Scirpus lacustris, Phragmites communis, 
Carex rostrata, C. flliformis, and C. Goodenovii being dominant. 
Amongst other plants, Pilularia globulifera, Subularia aquatica, 
Heleocharis multicaulis and viviparous forms of it, were all abundant 
here. 
Whitefield Loch is three miles south-east of Glenluce. It has an 
angular outline, is about half a mile long, and is a good deal enclosed 
by trees, with cultivated land or moor beyond. The water is 
slightly peaty ; the shores are stony, and for the greater part bare 
of vegetation. The most noticeable feature of the shore flora is the 
abundance of Lythrum Salicaria. Besides a number of plants usual 
to the district, I saw nothing here of particular interest. 
Barlockhart Loch is a small circular pool about a mile south-east 
of Glenluce. It is surrounded, excepting on the west, by low hills of 
the pasture or cultivated types, and the water is not peaty. The 
loch is enclosed bv a zone of Phragmites communis, beyond which, in 
the water, is an association of Castalia speciosa and Nymphj^ea lutea, 
which also extends around the loch, and between the two at the east 
end an association of Equisetum limosum is interposed. Behind the 
Phragmites there is a strip of marsh with Salix aurita and Alnus 
glutinosa in places, as well as a number of the usual bog plants. A 
curious floating form of Hydrocotyle vulgaris occurred here, and dwarf 
bushv forms of Potamogeton obtusifolius, as well as the normal forms 
of both. In the original paper a long list of plants is given for this 
and the foregoing lochs. 
White Loch is nearly a mile long by half a mile broad, and is one 
of the largest of a group situated about three miles east of Stranraer. 
White Loch and the adjoining Black Loch are within the private 
grounds of Castle Kennedy, the seat of the Earl of Stair, and are 
ornamental waters to Lochinch House, although left as far as possible 
in a natural condition. They are surrounded by lawns or meadows 
which are furnished with groups of ornamental trees, an island on the 
west side of the White Loch being also beautifully wooded. There is 
no extent of shore anywhere, neither is there any considerable develop- 
ment of marsh vegetation ; but here and there narrow zones of marsh 
plants, 1 to 10 feet wide, intervene between the water and the 
grassy banks. The water is not peaty, but is so turbid and greenish- 
coloured that the bottom cannot be seen at a greater depth than 
18 inches when looking over the side of a boat {i.e. in August). 
