FLORA OF SCOTTISH LAKES 
187 
TORTULACE^ 
Trichostomum tortuosum, Diocon^ IV. Occasionally abundant on 
the littoral rocks of the hill lochs. 
ORTHOTRICHACEJE 
Orthotrichum rupestre, Schleich.^ IV., VL A common moss on 
rocks about the shores of lochs in hilly districts. 
MEESIACE^ 
Aulacomnium palustre, Scliwaeg. In wet places about shores, or 
even in the water ; frequent in all the areas. 
BARTRAMIACE^ 
Philonotis fontana, Bi^id.^ I., IV. On wet shores or at the margin 
of the water, common in IV., but occurs in other Areas 
sparingly. P. calcarea, Schp., occurs on the boggy shore at 
the south-east end of Loch Leven. 
Breutelia arcuata, Schp.^ IV. On rocks ; generally scarce at loch 
shores, but it grows in magnificent luxuriance at Loch 
Dungeon. 
BRYACEiE 
Several species of Bryum occur, but seldom in abundance. B. 
alpinum, Huds.^ is sometimes noticeable on rocks of the hill 
lochs in Area IV. B. bimum, Schreh.^ occurs in scattered 
patches on wet or boggy shores, here and there, in all the 
Areas ; similarly does B. pallens, Siv. At Burntisland Reservoir 
a curious form of the last-mentioned was very abundant in 
water to about 18 inches deep, on the clayey bottom. Mr 
H. N. Dixon, to whom I submitted specimens, replied as 
follows : — " Mr Nicholson, to whom I sent the Burntisland 
Reservoir Bryum, agrees with me that while, at first sight, 
it resembles B. neodamense, it is really an altered form of 
B. pallens.^' 
Mnium punctatum, Z., IV. Frequently abundant on wet, some- 
what sandy shores ; also in the other Areas, but seldom in any 
abundance at the lochs. 
FONTINALACE^ 
Fontinalis antipyretica, Z., I., II., IV., V., VI., VII. In Area I. 
it is very abundant everywhere, from half-submerged rocks 
to a depth of 30 feet. In II. it is less abundant in shallow 
water, but an attenuated form is common in deep water, even 
to a depth of 40 feet. In Areas IV.-VIL I have not obtained 
