1909-10.] Flora of Scottish Lakes. 93 



LEUCODONTACEiE. 



Pterogonium gracile, Swartz. IV. On shore rocks, frequent and 

 abundant at lochs amongst the hills. 



LESKEACE.E. 



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." 



HYPNACEiE. 



Climacium dendroides, Weh. and Mohr. V., VII. Occasionally 



abundant on boggy shores. 

 Hyocomium flagellare, B. and *S'. IV. Frecjuent on shore rocks. 

 Brachythecium rivulare, B. and >S'. " I.," IV., VI., VII. On dry and 



submersed rocks, fre(]uent. 

 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 ver\^ 



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, Hediv. " I.," IV. On rocks of the shores of hill 



lochs. 

 Hypnum revolvens, Sivartz. IV., VII. On w^et shores, chiefly of the 



hill lochs. 

 Hypnum commutatum, Hedtv. 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. 



