Four new genera of the fungal family Boletaceae

Based on our previous molecular phylogenetic analyses,four new genera are described,namely Baorangia,Lanmaoa,Parvixerocomus,and Rugiboletus,and one known genus,Neoboletus,is re-delimitated.Four new species and nine new combinations are proposed.Morphological characters of each genus and related eleven species are described and illustrated.Most of species in the genera described from southwestern China are wild edible mushrooms and can be found in free markets.

One hundred noteworthy boletes from China

Fungi of the family Boletaceae are of great importance in both ecology and economy.Our previous molecular phylogenetic studies have shown this family to have an extremely high species diversity in China.To further document the Chinese boletes,morphological studies and phylogenetic analyses were conducted including species of Boletaceae from China and other parts of the world.The results indicate that seven subfamily-level major clades and 62 generic clades can be retrieved,52 of which are found in China.Furthermore,100 species(comprising 32 genera)common in China are illustrated and described here in detail.Among them,four genera and 46 species are new to science,and 26 new combinations are proposed.To interpret the species concepts consistently,epitypes for five species are designated based on collections made from or near the type localities.Notes on eight extralimital species are also provided.Among the species reported here,most of the species are known only from East Asia.Only Leccinum scabrum(Bull.)Gray,Porphyrellus porphyrosporus(Fr.&Hok)E.-J.Gilbert and Tylopilus felleus(Bull.)P.Karst.are widely distributed in the Holarctic,and Buchwaldoboletus lignicola(Kallenb.)Pila´t;Strobilomyces strobilaceus(Scop.)Berk.are in Eurasia;while Aureoboletus mirabilis(Murrill)Halling,Harrya chromapes(Frost)Halling et al.,and Sutorius eximius(Peck)Halling et al.are found throughout East Asia-North America based on morphological and molecular phylogenetic evidences.

The phylogeny of selected Phylloporus species,inferred from NUC-LSU and ITS sequences,and descriptions of new species from the Old World

The phylogeny of Phylloporus(Boletaceae)has not been well studied,and the taxonomic relationships of this genus have varied considerably among authors.The following study presents phylogenetic relationships of Phylloporus based on two nuclear ribosomal DNA regions,ITS and LSU.The ITS dataset includes 39 collections and the LSU dataset contains 50 collections of Phylloporus.A combined analysis of both genes did not resolve the deeper nodes in the phylogeny,but the results suggest that Phylloporus is monophyletic and a sister group of the Xerocomus subtomentosus group.The lamellate hymenophore configuration is a synapomorphy that distinguishes Phylloporus from the other genera in the family.The placement of a lamellate genus within Boletaceae suggests that hymenophore evolution is not well understood in the family.This is the first phylogeny of Phylloporus and includes 20 species from different geographic regions.Six taxa of Phylloporus from the Old World are here presented.Phylloporus cyanescens is a new combination for an Australasian taxon formerly named as a variety of P.bellus(Massee)Corner.Phylloporus pumilus is described from Indonesia,and 4 species are described from Thailand:P.castanopsidis,P.dimorphus,P.infuscatus,and P.rubiginosus.