THE ESSEX FIELD CLUB.
221
small and badly developed. The old ashes and other aged trees would probably
well repay a careful search, particularly in damp spots well exposed to the light.
I did not observe any old wooden palings which, as a rule, are rich in lichens. I
have not seen in Essex any trees more likely to afford a good hunting-ground for
a lichenologist; but a week, at least, would be requisite to examine them
thoroughly."
LISTS OF MOSSES, LICHENS AND HEPATICAE GATHERED IN
HATFIELD FOREST.
Musci.
Anomodon viticulosus.
Amblystegium riparum.
A. serpens.
Barbula laevipila,
Brachythecium rivularia.
B. velutinum.
Bryum capillare.
Ceratodon purpureus.
Eurhynchium crassinervium.
£. piliferum.
E. pumilum.
E. striatum.
E. praelongum.
Fissidens taxifolius.
F. viridulus.
F. adiantoides (in fruit).
Grimmia pulvinata.
Homalothecium sericeum.
Hylocomium loreum.
H. squarrosum.
H. triquetrum.
Hypnum cupressiforme and var. resupi-
natum.
H. irriguum.
H. molluscum.
H. purum.
Mnium rostratum.
M. undulatum.
Orthotrichum affine.
O.. diaphanum,
Plagiothecium denticulatum.
Pottia truncatula.
Thuidium tamariscinum.
Weisia cirrhata.
Zygodon viridissimus.
LICHENES.
Arthonia pruinosa.
Calicium hyperellum (in fruit).
Cladonia pyxidata.
Evernia prunastri.
E. furfuracea (rare).
Lecanora atra.
L . subfusca.
L. turneri.
Lecidea canescens,
L. grossa.
L. quernea.
Opegrapha atra
0. varia f. diaphora.
Parmelia borreri.
P. caperata.
P. exasperata.
P. perlata.
P. physodes.
P. saxatilis.
Peltigera canina.
Pertusaria amara.
P. fallax.
P. globifera.
Phlyctis argena.
Physcia caesia.
P. ciliaris.
P. parietina (fruit).
P. pulverulenta (fruit).
Ramalina farinacea,
R. fastigiata.
R. fraxinea.
Hepaticae.
Aneura pinguis.
Lophocolea heterophylla.
L. bidentata.
Radula complanata.
Notwithstanding the dearth of Fungi, the delightful weather and charming
woodland scenery rendered the meeting a very enjoyable one for all taking part
in it. The extensive forest in all probability originally formed part of the
immense woodlands which once covered the greater part of Essex ; evidence of