Flora of Scottish Lakes. 
109 
1909-10.] 
are extremely scanty, there being merely a few plants of common species 
here and there. Amongst numerous Bryophytes that were abundant on the 
littoral the following may be mentioned : — Mnium hornum, Trichostomum 
tortuosum, Rhacomitrium gracilescens, Jungermannia ventricosa, J. Floerkii, 
Anthelia julacea, Nardia emarginata, N. compressa, Pellia epiphylla, Diplo- 
phyllum albicans, Hypnum scorpioides, etc. Figs. 5 and 6 represent this 
loch, with the adjacent mountains Merrick and Mullwharchar. 
Loch Neldricken. — Proceeding a few hundreds of yards to the south- 
east of Loch Enoch, one comes to a narrow ridge of rugged rock connecting 
Dungeon Hill with Craignaw (fig. 9). From this spot, called the Nick of 
the Dungeon, an excellent bird’s-eye view is obtained of Lochs Neldricken 
and Valley (fig. 7). These lochs are similar in general features to Loch 
Enoch, — they have clear, brilliant, slightly peaty water, white sandy bays, 
shores otherwise rocky, and very irregular outlines. The vegetation is also 
similar, and usually scanty. Loch Neldricken differs from Loch Enoch by 
having considerable associations of Equisetum limosum, more Myriophyllum 
alterniflorum, and a few specimens of Glyceria fluitans. On the N.W. side 
there is a very regularly shaped “ murder-hole ” (ante, p. 1014, figs. 84 and 
109), formed in a somewhat circular bay or arm of the loch, the shallow 
margin of which affords a suitable situation for sedge-like plants. The 
bottom, I presume, sinks suddenly and regularly like a basin, at some distance 
from the shore, to a greater depth than these plants can accommodate them- 
selves to; consequently they end abruptly, and present an even circular 
outline at the place where the water is too deep for further advance (fig. 8). 
The plants surrounding this “ murder-hole ” are in three well-marked zones 
as follows : — Adjoining the shore, Carex rostrata, then a zone of Equisetum 
limosum, followed by a narrow zone of a plant which, from distant examina- 
tion with a telescope, was apparently a large form of Carex rostrata, but 
as specimens could not be obtained, it was impossible to exactly identify 
the species. Beyond those enumerated, the marginal Phanerogams are very 
sparse. In many places the sandy shores are covered with patches of 
Nardia scalaris and Anthelia julacea, and the littoral rocks also are fre- 
quently overgrown with Bryophytes common to the district. Fig. 9 gives 
a representation of a portion of this fine loch from the south shore. 
Loch Valley, as already indicated, is adjacent to the last mentioned 
and receives its outfall. The physical and botanical features are similar 
to those of the adjacent lochs already described, but it has in addition 
Carex filiformis and Menyanthes trifoliata. There are several associations 
of Carex rostrata, and Hypnum fluitans is very abundant on a boggy 
portion of the shore, whilst Anthelia julacea and Pleurozia cochleariformis 
