1909-10.] 
Flora of Scottish Lakes. 
105 
lochs. Carex rostrata, Equisetum limosum, Phragmites communis, Lobelia 
Dortmanna, and Littorella lacustris are its most abundant plants. 
Descending northwards from Loch Brecbowie for about a mile, one 
comes to Lochs Bradan and Lure, which are connected together by a narrow 
channel. Loch Bradan is nearly a mile long, with a maximum breadth of 
a quarter of a mile. It is very shallow, the greatest depth being 8 feet. 
Loch Lure is about a third the length of its neighbour, with a maximum 
depth of 7 feet. The elevation of these lochs is nearly 1000 feet above sea 
level. Except for a plantation of conifers on the south of Loch Lure, about 
the ruins of Craiglure Lodge, these lochs are entirely surrounded by a tree- 
less, grassy moor. Their shores are rocky or stony, and the water is 
slightly peaty. On an island in Loch Bradan are the ruins of a small 
castle, but there is now little more to be seen than what is presented by a 
stone sheep-enclosure. Both lochs have an area of marsh at the west end, 
but the vegetation is dwarfed, and, like that in the water, consists of the 
same species as grow in the lochs previously mentioned. 
Passing over the bill by way of the little pool, Loch Duh, which contains 
nothing of particular interest, one crosses the Girvan Water and enters the 
desolate moor in which are situated Derclach Loch and Loch Finlas, which 
are connected by a short and narrow channel, and together form the source 
of the water supply for Ayr. Derclach Loch is a very narrow sheet of 
water about half a mile long and not more than 12 feet deep. Loch Finlas 
is also very narrow and shallow throughout the greater part of its length, 
which is 1^ miles. It widens at each end, and is therefore dumb-bell-shaped. 
Its surface is 830 feet above sea level, being 7 feet less than Derclach Loch. 
These lochs have a narrow shore, which is either peaty, stony, or rocky. 
Their water is clear, but slightly peaty. They have a scanty vegetation, 
and present nothing of botanical interest beyond a number of plants 
common to the preceding lochs. 
The plants more or less common to all the foregoing lochs, excluding 
Loch Doon, are as follows : — Lobelia Dortmanna, Isoetes lacustris, Littorella 
lacustris, Subularia aquatica, Chara fragilis, var. delicatula, Nitella opaca, 
Sparganium natans, Scirpus fluitans, Ranunculus Flammula, var. natans, 
Castalia speciosa and its var. minor, Juncus fluitans, Myriophyllum alterni- 
florum, Potamogeton natans, P. polygonifolius and its var. pseudo-fluitans, 
Carex Goodenovii, C. filiformis, C. rostrata, Menyanthes trifoliata, Hydro- 
cotyle vulgaris, Equisetum limosum, Scirpus lacustris, Juncus lamprocarpus, 
J. acutiflorus, J. effusus, Heleocharis palustris, H. multicaulis, Phragmites 
communis, Caltha palustris and its var. minor, Eriophorum polystachion, 
Ranunculus Flammula and its var. scoticus, Cardamine pratensis, Batracho- 
