Jk. Jin et al., Phylogenetic relationships of Panellus (Agaricales) and related species based on morphology and ribosomal large subunit DNA sequences, MYCOTAXON, 79, 2001, pp. 7-21
Panellus, sensu lato has included putatively related taxa with uncertain af
finities. Previous researchers suggested that Dictyopanus, a poroid mushroo
m, was closely related to the gilled Panellus, but affinities of Dictyopanu
s and Panellus to segregate genera of Tectella, Pleurotopsis and Sarcomyxa
remained uncertain. Representative specimens and isolates of eight species
of Panellus s.l. and Dictyopanus were examined; P. stypticus, P. mitis, P.
ringens, P. violaceofulvus, P. serotinus, P. patellaris, P. longinquus and
Dictyopanus pusillus. Phylogenies based on morphology and ribosomal large s
ubunit DNA sequences were constructed. Both methods supported five clades:
1) D. pusillus and P. stypticus; 2) P. ringens and P. violaceofulvus; 3) P.
mitis; 4) P. serotinus: and 5) P. patellaris. Inclusion of sequences for R
esinomycena acadiensis, Mycena rutilanthiformis and M. clavicularis showed
that Panellus s.l. was polyphyletic. Generic designations exist for all cla
des or terminal taxa except for Panellus mitis which may require new generi
c placement. Both P. stypticus and D. pusillus share a homologous Group I I
ntron at the same position of the ribosomal large subunit gene, further sup
porting a close relationship between Dictyopanus and Panellus.