1909-10.] Flora of Scottish Lakes. 125 



Galium palustre, Pedicularis palustris, Philonotis fontana, Aulacomnium 

 palustre, Hypnum falcatum, H. scorpioides, H. fluitans, H. cuspidatum, H. 

 cupressiforme, Rhacomitrium aciculare, Scapania sub-alpina, various species 

 of Sphagnum, etc. Filamentous Algae are scarce everywhere. 



Lochinvar is 3 miles X.E. of Dairy. It is about ^ mile long by ^ mile 



wide, and is situated at an elevation of 736 feet above sea level, in a 



depression of a hilly, grass and heather moor. The scenery around is bare, 



desolate, and, with the exception of a few conifers about the gamekeeper's 



house, treeless. The water, which is the source of the public supply for 



Dairy, is slightly peaty but very clear, and its maximum depth is 10 feet. 



Nearly everywhere the moorland vegetation apj)roaches to the water's 



edge, so that there is practically no shore, unless it be a narrow zone of 



stones or rocks (fig. 41). The bottom is rocky, save some patches of sand, 



and, with the exception of a few species which are abundant in isolated 



places, the flora is extremely poor. There are no associations of marsh 



plants about the shores ; such of these plants as do occur are either as 



scattered specimens, or in a few very small groups, — Carex rostrata, Juucus 



lamprocarpus, J. effusus, Heleocharis palustris, and Ranunculus Flammula 



being the chief species. On an island, there is a quantity of Phalaris 



arundinacea overgrowing the fallen remains of a small castle. The 



submersed plants are more interesting. Here and there Lobelia Dortmanna 



or Littorella lacustris scantily carpets the bottom, particularly at the east 



end, where there is a little sand. Utricularia vulgaris, Myriophyllum alterni- 



florum, and Fontinalis antipyretica are abundant, whilst Juncus fluitans is 



not abundant. Strange to say the following Potamogetons were all 



plentiful : — P. pusillus, P. perfoliatus, P. Zizii, and a very long-leaved form 



of P. lucens. No other plants worth noting were found here. 



Loch Dungeon is 7 miles N.W. of Dairy, at an elevation of over 

 1000 feet above sea level, and near the clifl" at the west side it attains a 

 depth of 94 feet. Beautifully situated at the base of rocky and precipitous 

 mountains, it forms a magnificent, although treeless, piece of highland 

 scenery, wild in the extreme, particularly on the south and west, where the 

 mountains rise almost perpendicularly from the water's edge (tigs. 42 and 

 44). This loch is irregularly shaped, being almost cut in twain at one part 

 by a rocky promontory from the south shore, and by gravel from a 

 moraine, washed into the loch by the Hawse Burn, forming a peninsula or 

 alluvial cone from the north-west shore (tig. 43). The loch is about 

 f mile long by I mile broad. Its water is extremely brilliant and 

 clear, although of a steely-gray colour, and its shores are mostly rocky or 

 stony. Excepting associations of Equisetum limosum and Phragmites 



