Three new Phylloporus species from tropical China and Thailand.

We introduce three new Phylloporus species, P. pusillus, P. subbacillisporus and P. subrubeolus, from southwestern China and northern Thailand with macro- and micro-descriptions and illustrations. They are found mostly in forests dominated by Fagaceae or Dipterocarpaceae trees. A three-gene phylogenetic analysis of the new Phylloporus species along with other selected Phylloporus species confirmed that all new Phylloporus species are related to previously described Phylloporus species. Phylloporus pusillus and P. subrubeolus are morphologically similar, but the former can be separated by very small basidiomata, lamellae becoming deeper yellow to reddish with age and less densely encrusted walls of pileipellis hyphae. Phylloporus subbacillisporus can be easily distinguished from other species by shallowly intervenose lamellae and subbacilliform basidiospores. [ABSTRACT FROM AUTHOR]