ECOLOGICAL STUDIES ON TILE SYMBIOSIS OF TER ITOMYCES ...

was from a similar area althouoh with slightly more aivojýse vegetation
cover. G was sampled much earlier ong at the start of the rainy
season, than when 0 and the other soils were sampled, by which time
many more fungi may have grown and sporulatede
In geneml týe-speciss of 1ýmgL obtained - frxxm these soilis are
those obtained from the termites Outs, foodstore and comb dilution
plates
(Tables 5*2e - 90 5*2*16)t showing that the prezence of'these In
the nest, system can be accounted for by contaminAtion of the termites
by spores from soil, and by contmination of the food material* Most
. of these fungi wOxo also obtained by McDonald (19689 1970) from Mokva
soils*
6,, l,, 2 FUNGAL POPULATIONS AT DIFFERM DMMUS -IN THE SOIL
Hathod
Two pits were dug in prima" Southern Guinea savanna w0odlan4 at
Zugurva (site As 291ý1)* In each pit 5 s911, samples weretaken by
means of a cork borer from each of the following depthal 0-5 cmq 5.25
eml, '25-50 ca and 50-100 cme The number of SUMal propagules per g dry
weight at each depth was determined bY dilution plate counting on SF
medium* !; plates were not up for each depth in each dilution series*
For further details of the dilution plate meth(W see 59104.
Results
The soil varied from sandy at 0-5 cm depth to sticky clay at
50-1009 with, an increasing moisture content with depth (29192, Table
2#1*1)o
The results are shown In Tables 6*Ii3-6,, l*7*
282.,