93 
1909-10.] Flora of Scottish Lakes. 
LEUCODONTACEiE. 
Pterogonium gracile, Swartz. IV. On shore rocks, frequent and 
abundant at lochs amongst the hills. 
LESKEACEdE. 
Heterocladium heteropterum, B. and S. IV. This delicate species is 
seldom found at the lochs. It was, however, very abundant as a sub- 
mersed aquatic at Loch Grennoch, even to a depth of 10 feet. Mr H. N. 
Dixon, to whom specimens were submitted, replied as follows : — “ It 
is certainly Heterocladium heteropterum, B. and S. } and it is a remark- 
able situation for that moss, which is by no means an aquatic species, 
though accustomed to wet and even dripping rocks and moist earth.” 
hypnaceh:. 
Climacium dendroides, Web. and Mohr. V., VII. Occasionally 
abundant on boggy shores. 
Hyocomium flagellare, B. and S. IV. Frequent on shore rocks. 
Brachythecium rivulare, B. and S. “I.” IV., VI., VII. On dry and 
submersed rocks, frequent. 
Eurhynchium rusciforme, Milde. “ I.,” IV., and in all the other Areas, 
but scarce at the lochs. At the south end of Loch Doon it was very 
abundant at depths of from 3 to 5 feet, occurring there with 
Fontinalis antipyretica. 
Hypnum riparium, L. VII. Not common at lochs, but it is abundant 
on stones at Burntisland Reservoir. 
Hypnum stellatum, Schreb. IV., V., VI., VII. Often abundant on 
boggy shores. 
Hypnum fluitans, L. “I.,” IV., VI., VII. Forms of this plant are 
common about the hill lochs. 
Hypnum uncinatum, Hedw. “ I.,” IV. On rocks of the shores of hill 
lochs. 
Hypnum revolvens, Swartz. IV., VII. On wet shores, chiefly of the 
hill lochs. 
Hypnum commutatum, Hedw. IV., VII. Remarks same as to the last. 
Hypnum falcatum, Brid. “ I.,” IV., VII. Remarks same as to the two 
preceding species. 
Hypnum vernicosum, Lindb. IV. Common at L. Minnoch. 
Hypnum cupressiforme, L. IV. Forms of this common moss frequently 
cover rocks on the shores in this Area. In the other Areas it is 
much less abundant at the lochs. 
