Abstract
The addition of cottonwood and ash sapwood powder to YPSSl2 medium influenced
the mycelial growth of 13 species of freshwater lignicolous Ascomycetes and
Hyphornycetes. These species fall into three groups with respect to their responses to
the presence of leached or non-leached wood powder. Neither wood type showed
strong inhibitory effect on the mycelial growth of the species. Leaching did not affect
the response of the species to the presence of wood powder
)