8 Transactions British Mycological Society. 
LIST OF MYCETOZOA FOUND DURING 
THE WORCESTER FORAY. 
From Sept. 19th to 23rd, 1921. 
by G.. [aster FAS. 
After the unusually dry summer, hopes for a good harvest of 
Mycetozoa were not high; some showers had fallen, however, 
in Worcestershire in August and September, with the result that 
every wood we visited produced something of interest. Alto- 
gether thirty-eight different species were observed—by no 
means the smallest number obtained on one of our autumn 
forays; but on the whole our gleanings were scanty, and several 
species that are usually abundant were represented by one or 
two gatherings only. Diderma testaceum, found in Shrawley 
Wood, is a new record for the county. 
On Sept. 20th Wyre Forest with its extensive woods of oak, 
mixed with spruce, sweet-chestnut and poplar, and with under- 
growth of bracken and bramble, gave us eighteen species; per- 
haps the largest development seen of any one species was of 
Perichaena corticalis, quantities of which were found on a pile 
of small wood on moist ground. Sept. 21st we visited Ocke- 
ridge and Monk Woods, consisting of oak, with some spruce, 
alder and yew, with undergrowth of hazel and bracken; a small 
plantation of larch arose from a bed of bramble too dense to 
afford good hunting ground. Large growths of Cribraria argil- 
lacea were seen on old yew logs, and several colonies of Ste- 
monitis hyperopta were obtained on decaying oak, horse-chestnut 
and other wood; the latter species is distinguished in the field 
by its reddish lilac tint from the browner sporangia of Coma- 
tricha typhoides, of which it has until recently been considered 
a variety. Along a path running through Monk Wood, Stemonitis 
fusca was found maturing on patches of moist clay and dead 
leaves; the plasmodium had evidently been feeding on a layer 
of branches laid down as a foundation to the path, and had 
crept up through the clay to form sporangia. On Sept. 22nd 
we drove to Shrawley Wood, where groves of oak and lime 
surround two long ponds and marshy ground connecting them. 
On dead leaves beneath Rhododendrons, Physarum sinuosum, 
Craterium leucocephalum, Leocarpus fragilis and Diachaea leuco- 
poda were found; the latter also occurred on moist herbage near 
the ponds; Diderma testaceum was gathered on dead bracken. 
