FUNGI OF IMPORT AX CE IX THE DECAY OF TIMBERS. 41 
were studied. The germination temperatures corresponded closely 
with those of the basidiospores of the respective species except that 
the oidia germinated better at the higher temperature tried. Dif- 
fused light had no effect upon germination. Ten hours of direct 
sunlight in May prevented the germination of the secondary spores 
studied. Neither the oidia nor the chlamydospores resisted drying 
nor alternate wetting and drying. 
The oidia of Lenzites sepiaria and L. trabea are essentially sticky 
and were found not to be adapted to dissemination by air currents. 
They are, however, adapted to dissemination by insects and water. 
This adaptation ma}- possibly be of some importance in case oidia 
are found to produce naturally in mills. Thus far. however, the only 
secondary spores of these fungi found in mills are the chlamydospores 
of Lentinm lepidevs upon the fruit bodies. 
