Biodiversity information databases and platforms have seen
considerable progress in recent years. They have a high potential
in conservation science in general, but may be even more
revolutionary in relation to poorly known species groups such as
fungi, whose practical conservation work has been jeopardised
by scattered and poorly controlled information. We review the
tradition of collecting information on species occurrences in
mycology and discuss the characteristics of the present fungal
biodiversity information databases. With a special focus on
population trend monitoring of fruit body producing macrofungi,
we emphasise several unrealised opportunities of these
databases and point out some relevant future directions for
them. As especially important, we see the more effective utilisation
of citizen science effort and combining the traditional
database information with the one derived with modern
molecular methods. Also, we emphasise the importance of
information on collection effort, including the use of GPS based
tracking data, along with the observations.