86 Proceedings of the Royal Society of Edinburgh. [Sess. 



sometimes, however, to a depth of 3 or 4 feet, in which case the 

 plants are much elongated and flowerless. 



Scirpus lluitans, L. IV., VI. Common in the peaty lochs of these 

 Areas, and sometimes very abundant (fig. 25). 



Scirpus setaceus, L. VII. On sandy shores, scarce. 



Scirpus lacustris, L. " I., II., III.," IV., V., VI., VII. Widely distributed 

 and abundant in both peaty and non-peaty lochs (figs. 23, 32, 33, 

 89, etc.). 



Eriophorum vaginatum, L. "I.," IV., VI., VII. Sometimes found upon 

 the peaty shores of hill lochs. 



Eriophorum polystachion, L. ( = E. angustifolium, Roth.). " I., II.," IV., 

 v., VI., VII. More frequent than the last mentioned, especially upon 

 the more or less peaty shores of lowland lochs ; less abundant amongst 

 the mountains. 



Carex canescens, L. VII. Rare at the lochs. 



Carex disticha, Huds. VII. On sandy-muddy shores, scarce at the 

 lochs. [In meadows at the head of Loch Ken and near Carlingwark 

 Loch.— J. M'A.] 



Carex paniculata, L. VII. Forms large tussocks, and occupies a 

 considerable area of deep bog at the west end of Otterston Loch 

 (fig. 103). [VI. Dowalton Loch.— J. M'A.] 



Carex aquatilis, Walil. " I., II.," IV., VII. Both the small and the 

 large lowland forms (elatior, Bab.) are sometimes very abundant ; at 

 the head of Loch Ken specimens over 6 feet high were observed. 

 The appearance of this plant in Fife has been queried. It was first 

 recorded there by Professor J. H. Balfour at Loch Fitty in 1862. 

 There it still exists in abundance, especially at the west end of the 

 loch, where it grows 3 feet hio-h in the water and 1 foot higrh on the 

 boggy shore. It has also spread to Burntisland Reservoir, but is 

 likely to be destroyed there when the proposed alterations are 

 carried out (fig. 104). 



Carex Goodenovii, Gay. " I., II.," IV., V., VI., VII. Widely distributed 

 and often very abundant about the shores of both lowland and sub- 

 alpine lochs ; on drier parts of the shores of the latter, very dwarf 

 forms are frequent. By accidentally overlooking a sheet of notes, this 

 plant was omitted from Areas I. and II. (Proc. Roy. Soc. Edin., 

 vol. xxv., pt. xi.). It is very plentiful, particularly in Area I. 



Carex flava, L. " I., III.," IV., V., VI., VII. The type and its varieties 

 are frequent upon the shores of lochs, but seldom in abundance. 



Carex flacca, Schreh. " II.," IV., VII. Not uncommon, thriving chiefly 



