174 THE FJRESH- WATER LOCHS OF SCOTLAND 
GENTIANACE^ 
Menyanthes trifoliata, Z., I., IL, IIL, IV., V., VI., VII. This 
species is ubiquitous and thrives under all kinds of environ- 
mental conditions. 
BORAGINACE^ 
Myosotis palustris, With. ; including M. scorpioides^ M. repens^ 
M. strigulosa, and M. ccespitosa. I., II., III., IV., V., VI., VII. 
The characters distinguishing these are so interwoven that it 
is frequently impossible, in the field, to decide upon the variety 
in hand. Although common, they are of but small importance 
as a constituent of a loch flora ; I have therefore included the 
whole in the aggregate palustris. They occur chiefly about 
lowland non -peaty lakes. 
Symphytum oflicinale, L. Seldom found upon the shores of lochs, 
but it does rarely so occur in Area VII. 
SCROPHUL ARI ACE^ 
Scrophularia aquatica, L., I., IV., V., [VI., J.M' A.]. Always scarce. 
Scrophularia nodosa, L., IV. Abundant about the shores of Loch 
Ken and a few other places. A few plants occur sporadically 
about the lochs of Area I. 
Mimulus Langsdorflii, Donn, V., VII. Well established on the 
muddy, marshy shores of several lakes. 
Pedicularis palustris, Z., I., IL, IIL, IV., V., VI., VII. Common 
and widely distributed. 
Veronica scutellata, L., V., VL, VII. Seldom abundant. 
Veronica Anagallis, L., II. , V. Scarce. 
Veronica Beccabunga, L., L, V., VI. , VII. Rare in I., but in the 
other Areas it is often abundant about the shallow margins of 
lowland lakes, and frequently overgrows the shore. 
LABIATE 
Mentha aquatica, IV., V., VL, VII. Often abundant on the 
marshy shores of lowland lochs. It also occurs in Areas 1. and 
IIL, but very sparsely. 
Mentha sativa, L., L, IL, IIL, IV., V., VL, VII. Abundant in 
lowland districts about marshy shores. The var. rabra, Huds., 
occurs, but less frequently, although in Area 1. it is much 
more plentiful at the lochs than the type. 
Mentha arvensis, L., L, IIL, VI. , VII. The type or one of the 
varieties sometimes occurs on the dry, gravelly shores of the 
lowland lochs. 
