TreeBASE Search-Matrices for study 15353

@ARTICLE{TreeBASE2Ref22846, author = {Patrick Brandon Matheny and Pierre-Arthur Moreau and Alfredo Vizzini}, title = {Crassisporium and Romagnesiella, two new genera of dark-spored Agaricales }, year = {2014}, keywords = {Agaricoid clade, Hymenogastraceae, molecular annotation, Pachylepyrium, Strophariaceae, taxonomy, taxon sampling, types}, doi = {}, url = {http://}, pmid = {}, journal = {Systematics & Biodiversity}, volume = {}, number = {}, pages = {}, abstract = {Future work on development of a robust phylogeny of the Agaricales will need to expand taxon sampling and take into consideration enigmatic or otherwise rare taxa. The European species Galerina clavus Romagn., one such enigmatic taxon, has been pointed out by various authors as atypical for the genus. A phylogenetic analysis shows it to be most closely related to Pachylepyrium carbonicola (A.H. Sm.) Singer and P. funariophilum (M.M. Moser) Singer, two carbonicolous species with thick-walled basidiospores and a distinct germ pore unlike G. clavus. However, other species of Pachylepyrium Singer are quite rare and consequently poorly known. Here, we report that Pachylepyrium is polyphyletic as the type species, P. fulvidula (Singer) Singer, is nested in the Tubariaceae Vizzini based on multigene phylogenetic analyses. Pachylepyrium nubicola Singer is allied with Pholiota (Fr.) P. Kumm. based on ITS similarity, and P. carbonicola and P. funariophilum, together with G. clavus, are placed in a clade among a consortium of Strophariaceae Singer & A.H. Sm. and Hymenogastraceae Vittad. As a result, including consideration of morphological and ecological differences, we propose Romagnesiella gen. nov. to accommodate G. clavus, for which a taxonomic description and neotype are designated. The genus Crassisporium gen. nov. is proposed to encompass Pachylepyrium funariophilum (of which P. carbonicola is considered a younger taxonomic synonym), P. chilense M.M. Moser, and P. squarrulosum Singer. The identities of Tubaria umbonata S. Lundell, T. embolus (Fr.) Sacc., and T. minima J.E. Lange are also discussed. The discovery of a well-supported lineage including Crassisporium-Romagnesiella adds a new major branch to the Agaricoid tree of life.} }