Flora of Scottish Lakes. 
117 
1909 - 10 .] 
hamulata is abundant, sometimes with floating rosettes of leaves. Nuphar 
pumila is abundant in 8 to 10 feet of water on the south-west side, its semi- 
transparent submersed leaves being copiously produced at such depths. 
Juncus fluitans is extremely abundant in the shallow water at the north- 
west side. Scirpus lacustris (fig. 23) is very abundant, producing at depths 
of from 3 to 5 feet the grass-like submersed leaves in great luxuriance. 
Carum verticillatum, a characteristic marsh plant of this district, is 
abundant (fig. 27). Hypericum elodes (fig. 26) is scarce; Hydrocotyle vul- 
garis, Epilobium tetragonum, and Galium palustre occur on marshy ground. 
Nitella opaca, Chara fragilis, var. delicatula, and Ranunculus aquatilis occur, 
but none of them is abundant. Besides Batrachospermum, the filamentous 
Algae were scarce ; neither were the littoral rocks and banks conspicuous 
with Bryophytes, a few of the common forms only being observed to be 
abundant. [On boulders on the east side of the loch the rare moss 
Grimmia commutata may be found. — J. M‘A.]. — Juncus fluitans and Scirpus 
fluitans, both so plentiful here, are much alike in the barren state and easily 
confounded, but frequently they can be distinguished at a glance when 
growing, because the Juncus is usually slightly reddish, whilst the Scirpus 
is always bright green, without a trace of red. 
Loch Whinyeon is somewhat circular in outline, and about \ mile 
in diameter. It occupies an exposed position over 700 feet above sea 
level, 3 miles north from Gatehouse-of-Fleet. The water, which has a 
maximum depth of 33 feet, is clear, and but very slightly peaty. The 
shore, which is everywhere stony or rocky, consists chiefly of broken shale 
(Upper Silurian), the beds of which are frequently very highly inclined. 
The flora of the shore as well as of the water is extremely poor. The 
most interesting plants noticed were Alisma ranunculoides, in small 
quantity, but luxuriant, and a very dwarf form of Chara contraria (p. 90), 
of which the Messrs Groves, to whom specimens were submitted, write — 
“We have no specimens exactly like it.” Rhynchospora alba grows on 
boggy patches of the shore, to which it has evidently strayed from the 
adjoining moor, where, in places, it is the dominant plant. The following 
Bryophytes were abundant upon the shore : — Sphagnum subsecundum and 
its var. contortum, Mnium punctatum, Dichodontium pellucidum, Bryum 
alpinum, B. bimum, Dicranella squarrosa, Trichostomum tortuosum, Hypnum 
commutatum, H. revolvens, H. scorpioides, H. cuspidatum, H. cordifolium, H. 
cupressiforme, Grimmia apocarpa, Rhacomitrium aciculare, R. lanuginosum, 
Fissidens adiantoides, Jungermannia bantriensis, J. pumila, Scapania undulata, 
Nardia emarginata and its var. aquatica. The other plants noticed were 
not in dense, wide-spreading associations as frequently happens, but more or 
