190y-10.] Flora of Scottish Lakes. 137 



the following plants about the margins: — Phragmites communis, Carex 

 rostrata, Scirpus lacustris, and a few sparse patches of E(juisetum limosum. 

 Littorella lacustris and Lobelia Dortmanna carpet the bottom in places, and 

 there is a fair number of other submei'ged acjuatics. 



Loch Ronald is close to the last mentioned, and is about a mile long. 

 There is a plantation of conifers on the east side, otherwise it is surrounded 

 by agricultural land or moor. The water is very clear, and the shores are 

 stony, flat, and, from a botanical aspect, almost featureless (fig. 59), much 

 resembling Loch Ashie in Inverness-shire (ante, p. 1009, fig. 73). Here and 

 there a bank of peat 8 or 10 feet high dips into the water without the 

 intervention of a shore. There are two small associations of Equisetum 

 limosum and one of Scirpus lacustris, all at the south-west end, and groups 

 of Carex rostrata in the effluent. I was not able to obtain the use of a boat 

 because it had been previously engaged, but a close examination of the 

 barren shore for the remains of submersed plants suggested a scarcity of 

 vegetation in the water. 



The plants occurring at these lochs, but more particularly at Lochs Black 

 and Heron, are as follows : — Littorella lacustris. Lobelia Dortmanna, Isoetes 

 lacustris, Myriophyllum alterniflorum, Juncus fluitans, Scirpus fluitans, 

 Potamogeton polygonifolius, P. lucens, P. rufescens, P. pusillus, P. obtusifolius, 

 Fontinalis antipyretica, F. squamosa, Castalia speciosa, Sparganium natans, 

 Scirpus lacustris, Phragmites communis, Equisetum limosum, Heleocharis 

 palustris, Carex rostrata, C filiformis, C. flava, var. lepidocarpa, Juncus 

 lamprocarpus, J. acutiflorus, J. etFusus, Ranunculus Flammula, Hydrocotjde 

 vulgaris, Eriophorum polystachion, Comarum palustre. Polygonum Hydro- 

 piper, Mentha sativa, and Senecio aquaticus. There are a few specimens 

 of Lythrum Salicaria at Black Loch, but this species will probably not 

 succeed in getting well established there. 



Clugston Loch is a small sheet of water, 3 miles south of Kirkcowan, 

 with slightly peaty water, and surrounded by moor. The shores are rocky 

 or peaty, and beyond colonies of Carex Goodenovii, C. rostrata, and Equisetum 

 limosum there are no large associations of semi-acjuatic plants, although the 

 following are more or less abundant : — Littorella lacustris. Lobelia Dort- 

 manna, Juncus fluitans, Apium inundatum, Scirpus fluitans, Fontinalis 

 antipyretica, Potamogeton polygonifolius, P. lucens, Castalia speciosa, 

 Menyanthes trifoliata, Utricularia intermedia, Eijuisetum limosum, Carex 

 rostrata, C. Goodenovii, C. flava, Juncus lamprocarpus. J. eflusus, Caltha 

 palustris, Viola palustris, Ranunculus Flammula, Polygonum Hydropiper, 

 Hydrocotyle vulgaris, Lythrum Salicaria, Eriophorum polystachion, etc. 



Loch Wayoch is the most northerly of a group of lochs situated on a 



