248 Transactions British Mycological Society. 
time in great profusion on various dead leaves but especially 
on Rassa (Shorea barbata) in Johore. Several square feet of 
material were more or less covered with the sporangia which in 
places were densely aggregated. In the first gathering the 
sporangia vary in the denseness of the capillitium, some having 
an extremely lax capillitium, while others have a denser inter- 
mediate system of threads and something of an imperfect 
surface net on the lower half. 
C. typhoides Rost. This seems to be by no means a common 
species, and the colonies I have seen have usually been small. 
One exceptionally large growth occurred however on a very 
much decayed log of “Jak” (Artocarpus integrifolia) in an 
abandoned garden. 
C. longa Peck. Of the species of Comatricha this is one of the 
commonest, especially on Hevea logs which are in an advanced 
stage of decay. The long black sporangia densely aggregated 
and drooping are very characteristic. It frequently appears also 
on the soil around rotting stumps and on several occasions I 
have seen it on half-burnt Hevea logs in fire-pits. On cutting 
away a freshly matured colony the wood beneath frequently 
shows rich bright almost gamboge yellow coloration due to the 
plasmodium ; this occasionally extends to a depth of one-eighth 
of an inch. 
C. wrvregularis Rex? One doubtful gathering of this species 
was made varying somewhat from the typical form. Miss Lister 
describes the capillitium as stouter and darker at the extremities 
than any specimen previously seen, the columella being more 
rigid and the spores bigger and more spinose. The specimen is 
in a damaged condition. 
Lamproderma arcyrionema Rost. This is the only represen- 
tative of the genus recorded from Malaya. It occurred only on 
three occasions, each time in large colonies. Once it had de- 
veloped on leaf-bases (outsides) of coconuts. 
Cribraria violacea Rex. I have found this on coconut palms 
many times; it was plentiful on the insides of decaying leaf 
bases where there is much decaying vegetable matter and 
abundant moisture. It may be quite common in such situations 
but it is difficult to see. Once it occurred on “‘Nibung” palm 
(Oncosperma filamentosa). 
C. wntricata Schrad. This species occurs on coconut palms 
fairly frequently and on two occasions in Johore I have seen 
very large colonies each numbering thousands of sporangia 
crowded together on old Kumpas logs (Koompassia malaccensis). 
The dark lead coloured plasmodium was observed in the de- 
cayed timber. 
Dictydium cancellatum Macbr. This very common species 
