1909-10.] Flora of Scottish Lakes. 145 



plants, composed chiefly of Carex rostrata, Heleocharis palustris, Lythruni 

 SaHcaria (fig. 74), Spiraea Ulmaria, and the recently mentioned species as 

 well. At the south-east end of the loch there is a marsh, with the usual 

 common plants (fig. 72). The most important plants about the shores of 

 this loch are as follows : — Scirpus lacustris, Equisetum limosum, Glyceria 

 fluitans, Heleocharis palustris, Phragmites communis, Tj^pha latifolia (figs. 

 73, 74), Carex rostrata, Lythrum Salicaria, Juncus acutiflorus, J. etfusus, 

 Phalaris arundinacea, Spirsea Ulmaria, (Enanthe crocata, De.schampsia 

 casspitosa, Mentha aijuatica, etc. 



In the canal between the two lochs, Littorella lacustris, Alisma ranuncu- 

 loides, Potamogeton Zizii, Myriophyllum alterniflorum, Callitriche 

 autumnalis, and C. vernalis are the dominant species. Brj^ophytes are 

 everywhere scarce. 



Cults Loch is A mile east of the last mentioned. It is a small, some- 

 what circular loch, with non-peaty water, surrounded by meadow-land. 

 This loch has no visible effluent, and near its centre the remains of a lake 

 dwelling or crannog are to be seen. At the north-west and south-east 

 sides there are small bogs ; at other places a narrow zone of marsh, chiefly 

 occupied by Juncus eftusus, intervenes between the water and the pa.sture 

 (tig. 75). No other features of interest were noticed here beyond a number 

 of plants which need not be especially enumerated. 



Loch Mag'illie is about a mile south-west of White Loch. It is a small 

 oval lake 43 feet above sea level, having clear, non-peaty water, and no 

 visible affluent or effluent. This loch is situated in a hollow, and the 

 meadow-land, which surrounds it on three sides, runs down almost to the 

 water's edge, a narrow strip of stony shore intervening. The shore is 

 chiefly occupied by Juncus effusus, with which a few other plants are 

 mingled, but there is no marsh. At the south-west side there is a planta- 

 tion between the water and the adjacent road. The average depth is from 

 6 to 8 feet, and the floor of the loch is almost entirely covered with vegeta- 

 tion. Littorella lacustris carpets the bottom to a depth of 3 feet, and, 

 creeping up the shore, mingles with the grass of the meadow. Lobelia 

 Dortmanna is abundant to a depth of 5 feet, whence long peduncles elevate 

 the flowers above the surface. Isoetes lacustris is abundant from 4 to 

 8 feet deep. Elatine hexandra occurs in patches very plentifully from 

 the margin to (5 or 7 feet deep, and also on the shore (p. 74). Nitella 

 opaca is very abundant from 4 to 9 feet deep. Fontinalis antipyretica 

 and Potamogeton obtusifolius are scarce. Besides the above there are a 

 few of the usual plants. 



Soulseat Loch, which has a very irregular outline, is close to the above, 



VOL. XXX. 



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