Notes on Malayan Mycetozoa. A. R. Sanderson, 243 
Once thoroughly dried the collection is put away in large tin 
boxes (usually biscuit boxes) with a liberal supply of naph- 
thalene balls. Even with these precautions I have lost some 
specimens, eaten by insects. The climate is so damp that | 
find it necessary to expose to the sun at intervals, always taking 
precautions to keep off small insects. In some cases I have had 
to expose sporangia to benzine fumes a second and third time. 
At first I tried chloroform instead of benzine, but I believe this 
caused some of the specimens to fade a little. 
List of Mycetozoa found in South Malaya. 
Ceratiomyxa fruticulosa Macbr. The species occurs commonly 
both in the lowlands and up to 2700 ft., sometimes in very large 
colonies. Most frequently it appears on logs which have reached 
an advanced state of decay, but once I saw a fine colony on a 
Ficus stump in which decay had not progressed far. 
C. fruticulosa var. flexuosa Lister. The variety is almost as 
frequent as the species. Both are widely distributed. 
Badhamia orbiculata Rex. This species occurs very frequently 
on living Hevea trees, sometimes in large colonies; it is almost 
as common on the trunks of coconut palms, and in both cases 
is always to be found along a water trickle. I have searched in 
vain for it on other trees in the jungle and have rarely seen it 
on fallen logs of Hevea or on decayed coconut stems on the 
ground. On several occasions it has occurred in large masses 
on living coconut palms up to a height of over 15 ft. In dry 
weather when dehiscence of sporangia takes place the white 
rod-like projections of the capillitium from the sporangium wall 
inwards are an unmistakable feature. About the middle of 
December 1920, while visiting Kuala Lumpur, I noticed that 
six coconut palms appeared as though sprinkled with white- 
wash on one side from about 20 ft. to the base of the trees; 
closer examination showed this to be entirely due to B. orbiculata 
—a most striking appearance. 
Badhamia affinis Rost. This is apparently a rare species in 
Malaya. 
Physarum melleum Mass. Very extensive colonies of this 
species occur fairly frequently, sometimes on decaying leaves 
and twigs, at other times on dead timber, especially of Hevea; 
on two occasions I found it covering the fructifications of 
Ustulina zonata, and once on Fomes lignosus. It appears to be 
one of the seasonal forms, since for several months at a time 
no trace of it appears. The colour of the plasmodium is some- 
what variable, sometimes being, as Petch described it, a watery 
yellow, and at other times a very bright opaque yellow. Later 
observations of the plasmodium showed that it increased in 
