88 MUSCI PRETERITI. 
mixed; I have myself gathered them thus, and they are associated 
in the majority of the specimens in Sir W. Hooker’s herbarium, 
especially in those from Killarney, and from Devon and Cornwall. 
Dr. Taylor showed me in his herbarium a bit of furze-stem, 
gathered near Dunkerron, which had growing on it sia species of 
Lejeunea, viz., L. serpyllifolia, L. ulicina, L. ovata, L. hamatifolia, 
L. minutissima, and L. microscopica, i.e., all the Irish species of 
o him except L. echinata (=L. calcarea). The 
in the name of a Lejeunea that certainly grew on it, but ixe 
with other species, it might have been impossible for the recipient 
to know which was the particular Lejewnea meant. unger- 
Crypt. iii., t. 8, f. 7, was compounded of these two species, and of 
a small form of J. ventricosa (which often grows with the other two, 
especially where the habitat is rotting wood). His description may 
