MYCETOZOA IN EPPING FOREST IN 1946-7 57
Two small groups of Trichia contorta var. inconspicua which
I exhibited at the January meeting had most of the sporangia
burst, but a few which were unopened showed broad lighter
bands of dehiscence. Some of the sporangia are stalked, a
feature which Miss Lister tells me is rare in the species. Some
years ago this species was widespread on grass stems and leaves
in the Warren plantation, but these are unusual habitats; re-
cently I have only found a few sporangia of the typical form on
a bramble stem in that locality. In 1946 Leocarpus fragilis was
first recorded on June 29th, an immature development was seen
on November 20th, and fresh sporangia were found on Janu-
ary 18th, but these failed to produce capillitium or spores; I
think this is rather a remarkable run for the species. Badhamia
utricularis, the species that feeds on the surface of Stereum
hirsutum and other leathery fungi, had a poor season, only one
development of plasmodium being seen and that in January;
possibly the scarcity was attributable to the weather experienced
after September. Perhaps the same factor caused the scarcity of
Lamproderma scintillans. Craterium leucocephalum was recorded
once only, but C. aureum, usually a rare species, was found three
times. The sixty-eight species recorded for 1946-7 are:—
Ceratiomyxa fruticulosa (Muell.)
Macbr.
Badhamia utricularis (Bull.) Berk.
B. macrocarpa (Cesati) Rost.
B. panicea (Fries) Rost.
Physarum nutans Pers. and vars.
leucophaeum Lister and robustum
Lister.
P. compressum Alb. and Schw.
P. cinereum Pers.
P. vernum Sommerfelt var. iridescens
G. Lister.
P. sinuosum (Bull.) Weinm.
P. bitectum Lister.
P. contextum Pers.
Fuligo septica (L.) Gmelin and var.
candida R. E. Fries.
Craterium minutum (Leers) Fr.
C. leucocephalum Ditmar.
C. aureum (Schumacher) Rost.
Leocarpus fragilis (Dickson) Rost.
Diderma montanum Meylan.
D. effusum (Schw.) Morg.
D. spumarioides Fr.
D. deplanatum Fr.
D. floriforme (Bull.) Pers.
D. radiatum (L.) Morg. var. umbili-
catum Meyl.
Diachea leucopoda (Bull.) Rost.
Didymium difforme (Pers.) Duby.
D. Clavus (Alb. & Schw.) Rabenh.
D. melanospermum (Pers.) Macbr.
D. nigripes (Link) Fr.
D. squamulosum (Alb. & Schw.) Fr.
D. laxifila G. Lister & Ross.
Colloderma oculatum (Lippert) G.
Lister.
Stemonitis fusca Roth and var.
flaccida Lister.
S. hyperopta Meyl.
S. splendens Rost. var. flaccida
Lister.
5. flavogenita Jahn.
S. ferruginea Ehrenberg.
Comatricha nigra (Pers.) Schroeter.
C. typhoides (Bull.) Rost.
C. pulchella (Churchill Babington)
Rost.
C. rubens Lister.
Enerthenema papillatum (Pers.) Rost.
Lamproderma scintillans (Berk. &
Br.) Morg.
Cribraria argillacea Pers.
C. vulgaris Schrader.
Dictydium cancellatum (Batsch)
Macbr.
Tubifera ferruginosa (Batsch) Gmel.
Diclydiaethalium plumbeum (Schum.)
Rost.
Enteridium olivaceum Ehrenb.
Reticularia Lycoperdon Bull.
Liceopsis lobata (Lister) Torrend.