When the sequences of nuclear ITS, mt-SSU
and RPB2 were used for molecular phylogenetic
analyses of the collected fungus the thinness of the
wall of the basidiospores that typifies the genus
Rhodofomes proved to be of no significant generic
value and our new polypore occupied a unique
lineage separated from F. cajanderi and F. rosea.
The fungus was related closely to F. rosea (5 R.
roseus) in our study, but the phylogenetic results
rejected the genetic concept of Rhodofomes and
suggested that the fungus should be placed in
Fomitopsis. In this study we propose a new member
of Fomitopsis, based on an evaluation of the generic
concepts of Fomitopsis and Rhodofomes through
morphological observation of basidiocarps and phylogenetic
analyses of molecular sequences.