In
our case, the fact that likely refuges for Phaeocollybia mycorrhizas
and mycelium remained undisturbed in the roots of
shrubs and small trees within the clearcut and mature trees
on the clearcut edge while new potential host trees were
planted almost immediately, could have contributed to the
persistence of the existing P. attenuata in the soil. Soil inoculum
sources independent of living plants, such as mycorrhizas
on dying roots and their associated extraradical
mycelium, can also play an important role in reestablishing
mycorrhizal fungi on newly planted trees
Since the clearcut site was not mechanically cleared or burned
prior to replanting, these sources of Phaeocollybia inoculum
probably remained intact