Notes on Malayan Mycetozoa. A. R. Sanderson. 251 
on the unusual habitat of dead leaves. The small scattered 
sporangia varied from 0-15 to 0-7 mm. in total height. Miss 
Lister who examined the specimen remarked of this, “‘ It seems 
to correspond in character with the leaf-haunting form of 
A. cinerea, i.e. it bears the same relation to the usual wood form 
that the leaf form of A. cinerea does to the typical form on wood.”’ 
Perichaena vermicularis Rost. This occurs frequently, espe- 
cially as an arboreal form on Hevea and palms. I once gathered 
some fine sporangia from a newly felled Hevea tree; they 
occurred quite 40 ft. up the stem and were associated with 
scattered groups of Badhamia orbiculata. Diseased Hevea trees 
are usually attacked by species of boring beetles. From the 
punctures 2 to 6 ft. from the ground a liquid in the form of 
bubbles of fermenting sap exudes and flows in a thin stream 
down the trunk; the track of these streams appears to be par- 
ticularly favourable for the development of this Perichaena. 
One specimen was gathered from a jungle log at an altitude of 
over 2000 ft. in Negri Sembilan. 
P. depressa Libert. This is fairly frequent, the sporangia 
occurring in the cracks of bark. 
P. chrysosperma Lister. Three gatherings of this species have 
been made, two being on Hevea brasiliensis, and one on Nibung 
alm. 
: Margarita metallica Lister. I have found this sparingly among 
the moss and algae on tree trunks in situations similar to those 
frequented by Badhamia orbiculata. Coconut palms appear to be 
the treesmost favoured. Asomewhat abnormalspecimen was found 
ona dark felt of algae on coconut wood ; it consisted of long slender 
lilac-pink plasmodiocarps with rather stout capillitium threads. 
Distribution of rainfall in Malaya. 
The rainfall records as under for three successive years may 
be taken as fairly typical. The records “A,” ““B,” and “C” are 
for districts near to the mountains or approaching the foot-hills. 
A. Northern Johore: 
1918 1213 inches (total for year) 
Hane, 975» 
1920 1 cy Se 
B. Central Negri Sembilan, near Seremban: 
1918 85-1 inches 
EOTO 938, 
1920 EGET) 3 
C. Northern Selangor, near Kuala Kubu: 
1918 108-5 inches 
1919 2.5 lie 
1920 Qa0 0), 
