74 
Proceedings of the .Royal Society of Edinburgh. [Sess. 
CRUCIFERS. 
Radicula officinalis, Groves ( = R. Nasturtium-aquaticum, R. and B.). 
“ II., III.,” V., VI., VII. Seldom abundant at the lakes. 
Radicula palustris, Moench. V., VI., VII. Occurring sporadically 
about the shores of lowland lakes. 
Radicula pinnata, Moench ( = R. sylvestris, Bruce). V. Distribution 
very restricted. 
Cardamine pratensis, L. “ I., II., Ill,” IV, V, VI, VII. Almost 
ubiquitous, but generally sparse. A form which multiplies vegeta- 
tively by buds, that arise from the base of the leaflets, occurs at 
Loch Geliy (p. 160). 
Subularia aquatica, L. “ I.” A few plants occasionally observed. IV, 
V, VI. Often very abundant. 
VIOLACEiE. 
Viola palustris, L. “ I, II, III.” Only as scattered specimens upon the 
shores of lakes. IV, V, VI, VII. Frequent in lowland situations. 
ELATINACEAL 
Elatine hexandra, DC. VI. Very abundant in some places. At Loch 
Magillie and White Loch, Castle-Kennedy, for example, this plant 
carpets the bottom in large patches from the margin to a depth of 
6 feet. At other lochs it sometimes covers an exposed muddy 
shore. When submersed the plants are of a delicate texture, pale 
green, with elongated leaves, and seldom produce flowers. When 
exposed on mud or sand they are much more robust, dark-reddish 
green, with short' leaves, and flower profusely. In the latter state 
the specimens much resemble small examples of Peplis Portula in 
both form and colour. 
CARY OPHYLLACEiE. 
Sagina nodosa, Fenzl. VII. In matted growth on sandy or stony 
shores ; scarce. 
Stellaria uliginosa, Murr. “ I, II, III,” IV, V, VI, VII. Widely 
distributed, but seldom abundant. 
Stellaria palustris, Retz. V. Scarce. 
HYP ERICACEAE. 
Hypericum humifusum, L. V. Wet sandy and gravelly shores, not 
common, and usually a straggler from an adjoining heath. 
