THE ESSEX FIELD CLUB,
151
Diderma deplanatum Fries. Groups of sporangia and plasmodiocarps
on two holly leaves.
D. floriforme (Bull.) Pers. A fine group on a log. Usually somewhat
uncommon in the Forest.
Diachea leucopoda (Bull.) Rost. A very fine colony on a green ivy leaf
and a bramble stem.
Didymium nigripes (Link) Fries. Abundant on leaves.
D. squamulosum (Alb. and Schw.) Fries. Abundant at times.
Colloderma oculatum (Lippert) G. Lister. One sporangium among
green slime on wood ; others had emerged five days later.
Stemonitis fusca Roth. Several times on wood.
S. splendens Rost. var. flaccida Lister. One group on an oak stick,
rich chocolate brown in colour.
S. ferruginea Ehrenb. More frequent than S. fusca. Sometimes four
or five groups of sporangia occurred on a stick. Miss G. Lister
writes : We used to consider 5. ferruginea a rarity in the Forest,
while S. flavogenita was comparatively common.
Comatricha nigra (Pers.) Schroet. Abundant.
C. typhoides (Bull.) Rost. Plentiful ; some very large colonies on
decaying logs.
C. pulchella (Church. Bab.) Rost. Frequent on holly leaves in some
areas ; often weathered.
Lamproderma scintillans (Berk. & Br.) Morgan. One group on a holly
leaf.
Cribraria argillacea Pers. Found twice ; each collection weathered.
C. vulgaris Schrad, var. aurantiaca Pers. Two gatherings; both
weathered.
Dictydium cancellatum (Batsch) Macbi. Twice on logs; once on a
rotting stump.
Tubifera ferruginosa (Batsch) Gmel. A weathered cluster of sporangia
on a log.
Diclydiaethalium plumbeum (Schum.) Rost. Frequent; several aethalia
sometimes occurred on a log or pieces of a log ; some were clay-
coloured, and some lead-coloured.
Reticularia Lycoperdon Bull. Found several times in varied condition,
from freshly emerged to weathered.
Lycogala epidendrum (L.) Fries. Infrequent and weathered.
Trichia affinis de Bary. Three groups on holly leaves ; some elaters
were abnormal.
T. scabra Rost. One small gathering.
T. varia Pers. Began to appear in quantity late in the month.
T. contorta (Ditm.). Rost. Found twice.
T. decipiens (Pers.) Macbr. The most plentiful species of the genus ;
both rose-coloured and white in the immature stage.
T. Botrytis Pers. Found much weathered on a stick under a holly
bush ; possibly a survival from the previous winter.
Hemitrichia Vesparium (Batsch) Macbr. Two developments found.
Arcyria ferruginea Sauter. Two groups of sporangia, one older than
the other, on a crumbling log.