FLORA OF SCOTTISH LAKES 
253 
Standing out of shallow water there are pure groups of L'is Pseud - 
acorus 5 feet high, and the same occurs at Loch Fitty. Some very 
large clumps of Cardamine pratensis were also found here. Many of 
these were propagating vegetatively by the production of plantlets 
from buds at the base of the leaflets. Near the boat-house on the 
north-west shore there is a great bed of Potamogeton pectinatus. A 
curious submersed form of Alisma Plantago growing in 18 inches 
of water, with delicate linear-lanceolate leaves floating on the surface 
and linear submersed ones, was abundant. A number of other plants 
found at this loch are listed in the original paper. 
Burntisland Reservoir is an irregularly shaped sheet of water, 
situated amidst picturesque surroundings two miles north of Aberdour, 
and lying between the hills of Dunearn, Balcam, and Cullalo. It 
was formed by the construction of a short dam at the south-west end. 
Upon the south side the loose rock and soil have been protected by 
stone-work, which in most places enters the water. Excepting a few 
lichens and Bryophytes, no vegetation occurs either along this wall 
or at the dam, but at all other parts of the margin vegetation is 
abundant. The shores, where bare of plants, are either gravelly or 
muddy, and the water, which is not peaty, has a slightly turbid 
appearance, due to the somewhat impure water of one of the affluents 
and to the. erosion of the muddy shore by the waves. These matters, 
however, are about to receive attention from the authorities at 
Burntisland, who own the reservoir, and the proposed alterations 
will, I fear, eradicate a number of interesting plants from this locality. 
About the affluent at the east end there is a considerable extent of 
marsh, which, near the water, is covered with Equisetum limosum 
and Heleocharis palustris. From this place to about the middle of 
the loch, where there is a large bay, the flat shore, which is usually 
exposed in the summer by the falling of the water-level, is sandy or 
muddy and is covered with vegetation. Littorella lacustris grows 
out of the water and for some distance up the shore. Then there is 
a broad zone of Heleocharis palustris, with which a few other species 
of plants are mixed. Above that a narrow strip of Spiraea LTlmaria 
grows at the winter water-level, where the storms deposit a supply 
of rich detrital matter, and behind this there is a luxuriant grass 
meadow. Similar conditions also prevail along the east side of the 
bay already mentioned. The wide zone of Heleocharis is cut every 
summer, and dried for use as bedding for cattle, but chiefly in order 
to prevent the dead stems being washed into the loch during winter, 
as the decay of so large a quantity of vegetable detritus would pollute 
the water. A large number of plants grow at this reservoir, for which 
the original paper may be consulted. Amongst others the following 
plants, of less common occurrence at lochs, were found here : — Interest- 
