Perthshire, at an elevation of 2,500 feet — G. E. Hunt. In 
the. letter station it was accompanied by Thuidium deci- 
piens, De Not.; Bryum Duvalii , Splachnum vasculosum, 
and other rare species. 
The allies of Philonotis adpressa may be distinguished 
from it as follows. 
Philonotis calcarea has longer, secund, very acute leaves, 
with areobe twice or thrice larger, oblong, basal areoloe 
larger, elongate-hexagonal. 
Philonotis fontana has leaves usually spreading, but some- 
times secund, longer, suddenly acuminated half way up, very 
acute, very distinctly plicate, margin strongly recurved, 
nerve mu ch thinner, areolae linear above, small and oblong 
towards the base of the leaf. 
Philonotis seriata, Mitt., has leaves with a distinctly spiral 
arrangement, from a suberect base, patent towards the apex, 
ovate, acute, plicate, margin distinctly reflexed ; areolae 
linear above, small and ovoid towards the base of the leaf ; 
perigonial leaves from an erect dilated base which is composed 
of rather large linear cells with a red tinge, upper part of leaf 
widely spreading, cordate triangular, obtuse, areoloe elongate- 
quadrangular, very small and obscure, nerve thick and 
indistinct, continuous or vanishing below the apex, margin 
slightly denticulate. This species was first described in 
Mitten’s Musci Indiae Orientalis, in the Proceedings of the 
Linnean Society for 1859. It is frequent in springs at the 
head of Clova, fruiting freely in favourable seasons. 
Tliuidium decipiens, De Not.; Hypnum rigidulum, Ferg. 
MSS. This species was lately described by the Rev. J. Fer- 
gusson in Science Gossip, and noticed in Journal of Botany, 
October. 1871. It had been collected in 18GG on Ben Lawers 
by Dr. Stirton, but was for some years confounded with Hyp- 
num commutatum, to which species it bears much resemblance. 
The Rev. J. Fergusson, however, satisfied with its distinct- 
ness, distributed it in 1870 as Hypnum rigidulum, Ferg., 
species nova; and a few months since Juratzka identified it 
with Thuidium decipiens, De Notaris, Briologia I tali ana, 
18G9. It occurs in springs, and is found in Britain on Ben 
