Notes on Malayan Mycetozoa. A. R. Sanderson. 249 
occurs in immense colonies, but is seldom in perfect condition, 
as various insects and their larvae eat the sporangia. 
Tubifera ferruginosa Gmel. One gathering only. 
T. stipitata Macbr. My first gathering of this was from an 
old Ficus stump, the next from the bath room floor; several 
times I have found it on Hevea logs. It is apparently much more 
common in Malaya than the preceding species, frequently oc- 
curring in great abundance; on one stump I collected 50 aethalia: 
twice I have found it on Kumpas logs. 
Alwisia Bombarda Berk. & Br. I have found this on three occa- 
sions on decayed jungle timber where a clearing had recently been 
made. One colony was small and not in good condition; the 
second, a very large one, was collected in Johore on “‘merbau” 
(Intsia Bakeri Prain). Another development was seen covering 
the end of a moss-covered rotten jungle log, and this seems its 
favourite habitat. It has not been my good fortune to see the 
plasmodium of this species. Usually the sporangia bear evidence 
of being partly eaten by insects. In suitable habitats it is 
probably not uncommon. 
Dictydiaethalium plumbeum Rost. This species has been 
gathered on Hevea logs, jungle logs, and on dead leaves. One 
aethalium was over 4 cm. diameter. 
Reticularia Lycoperdon Bull. This is not uncommon on Hevea 
logs, but the aethalia are small, rarely exceeding 3 to 4 cm. in 
diameter and it is difficult to find a perfect specimen. As in 
some English specimens, dipterous larvae feed on the immature 
aethalia. 
Lycogala epidendrum Fries. Scanty colonies of small aethalia 
are fairly frequent on Hevea logs, where on one occasion | found 
a typical colony of scores of aethalia crowded together. I have 
also seen it on Nibung palm. 
The genus Trichia in my experience is not commonly repre- 
sented in Malaya. Such species as Tvichia varia Pers., T. de- 
cipiens Pers. and T. Botrytis Pers., all of which are exceedingly 
abundant in Britain and throughout the temperate regions, I 
have not yet seen in these parts, even when searching at 2700 ft. 
altitude. I have only gathered two species of the genus, and 
these by no means frequently. 
T. affinis de Bary. This occurs sparingly on decayed jungle 
logs and to a limited extent on Hevea and on dead leaves. 
T. persimilis Karst. Like the preceding this is far from 
common; it occurs in similar situations. 
Hemitrichia Vesparium Macbr. I met with this species once 
only in Malaya, on old rubber wood. The gathering was typical 
but small and showed signs of insect attack. 
H. clavata Rost. This occurs much more frequently than the 
