MOSSES. 
103 
on mud or gravel, by the sides of rivulets and springs, in 
the ascent of Snowdon and Glyder Yar, or the Hill of Tem- 
pests, and on the sandy brink of the river at Mavis Bank, 
near Edinburgh. Under its name of Bryum the same moss 
is, however, noticed by Dr. Scott, in his dried collection, as 
being found on the bank of some lake in Ireland, the only 
station for this fine plant in the British dominions being thus 
vaguely specified by him. The discrepancy is in some 
degree accounted for by the admission of Messrs. Hooker 
and Taylor, " that the differences between this moss and B. 
iiinium c&spiticium are almost insufficient, and that it is 
more distinguishable by its larger size, proliferous habit, 
and brown or purple hue, than by any more essential cha- 
racters." All botanists are aware, that in the same indi- 
vidualg great differences result from soil and station. Such 
therefore may be the case with the Bog-fringe moss, re- 
specting which Dellenius mentions that " the red kind is 
found in the mountain torrents of Snowdon, the green in 
high boggy heaths about London and Oxford." Mr. 
Griffith speaks of having gathered it near Celin House, two 
miles from Holywell, in Flintshire. 
TIUQfETEUM. 
