pean; but it has not the very short nearly globose asci and
bipartite sporidia characteristic of that genus, and approaches
more closely to the type of Lichens by the compact upper stratum
of its thallus. It comes extremely near to Strigula abie-
tina, Fr., a species of which I have not been able to procure
a specimen, but whose thallus is evidently more intimately
connected with the matrix even than in the tropical Strigulce,
which according to the observations of Dr. Montagne merely
grow beneath the true cuticle, as is the case with many Dothi-
decE. It accords also in some degree with Strigula lobulosa
described by Fries in the volume of Linncea for 1830, of
which Mr. Babington has sent me an authentic specimen.
That is however a very obscure species, and appears to have
been gathered in an imperfect state. Like Strigula abietina
and the present species, it connects Lichens with Fungi very
intimately; so closely indeed, that Fries is doubtful to which
group to refer the genus, and has therefore registered it both
in his Elenchus Fungorum and in his Lichenographia Europcea.
The Rushton and Cambridge specimens were more or less
infested with a curious undescribed fungus which was sent to
me some time since by Dr. Harvey from Dublin, under the
appropriate generic name of Microxiphium. It is curious that
a similar production occurs on some exotic Strigulce, giving
rise to the genus Tricharia. I do not however think that the
fungus and Strigula; are necessarily connected, for Irish specimens
of the fungus from Dr. Harvey and Mr. D. Moore
show no traces of the Strigula, and in the Sussex specimens
from Mr. Borrer I do not find the fungus. It should be observed,
that the leaves are so infested with one or more algae,
that it is not always an easy matter to ascertain the exact
structure or colour of the Strigula. The sporidia resemble
pretty closely those figured by Feei.—M. J. B. Dr. Montagne in Strigula
Fig. 1. A portion of the plant magnified, the thallus being
overrun with Chlorococcum vulgare; fig. 2, as seen with a lower
mpoewmebrr;a nfieg,. h3i,g hfillya mmeangtsn ifoief dt.he lower stratum, connected by
The following figures are from Mr. Berkeley’s analysis:—
Fig. 4. Perithecium with the upper cellular and lower filamentous
stratum; fig. 5, portion of lower stratum showing
moniliform flocci; fig. 6, portion of upper stratum highly
magnified; fig. 7, asci and paraphyses; fig. 8, sporidia highly
magnified; fig. 9, ascus with a paraphysis.