90 
Proceedings of the Royal Society of Edinburgh. [Sess. 
abundant in VII. Regarding a dwarf slightly incrusted form from 
shallow water in Loch Whinyeon, Messrs Groves write : — ■“ A very 
interesting little plant intermediate between C. contraria and C. 
vulgaris, but we think it best placed under the former.” The var. 
hispidula, Braun., occurs in Area VII. 
The Bryophyta often form a conspicuous portion of the shore flora of 
the lochs in Areas IV. and VI., very much more so than in any of 
the other districts. By instituting a careful search for these plants, 
a very long list might be arranged, particularly in Area IV., which 
is veritably a bryologist’s paradise. 
SPHAGNACEiE. 
Sphagnum intermedium, Hoffm. IV., VI., VII. On boggy shores of 
peaty lochs. 
Sphagnum cymbifolium, Ehrh. “ I.,” IV., VI., VII. On boggy shores 
of peaty lochs. 
Sphagnum acutifolium, Ehrh. “ I.,” IV., V., VI., VII. Universal in 
one or other of its numerous forms on the boggy shores of peaty 
lochs. 
Sphagnum cuspidatum, Ehrh. “I.,” IV., VI. Frequent in the water 
in bays, etc. of small peaty lochs, as well as on their boggy shores. 
The variety plumosum, Nees. and Hornsch., is less frequent. 
Sphagnum subsecundum, Nees. “I.” IV., VI. In similar habitats to 
the last, but less frequent. Sometimes it occurs in rather deep 
water : instance, Loch Grennoch, where it grows from 2 to 8 
feet deep, mixed with Littorella, etc. (p. 113). 
POLYTRICHACEiE. 
Polytrichum commune, L. This common moorland moss is occasionally 
very plentiful on peaty shores in all districts. 
Catharinea undulata, Web. and Mohr. IV. A common moss, but it 
rarely occurs in abundance at the lochs, as it is more or less a 
terrestrial plant. At Loch Minnoch, however, submersed rocks were 
abundantly clothed with an aquatic form of it (p. 126). 
DICRANACEiE. 
Dichodontium pellucidum, Schp. IV., VI. Common on rocky shores of 
lochs in hilly districts. 
Blindia acuta, B. and S. “ I.,” IV., V., VII. On wet or submersed rocks ; 
common about the shores of hill lochs. 
