Fomitiporella austroasiana, F. mangrovei and F. vietnamensis are described and illustrated as new species based on morphological characters and molecular evidence. They have annual to perennial, mostly resupinate basidiomata with grayish fresh pores, an indistinct subiculum, lack any kind of setae, have brownish, thick-walled basidiospores, and cause a white rot. The distinctive morphological characters of the new species and their related species are discussed. Phylogenies based on the nuclear ribosomal large subunit (28S) and the nuclear ribosomal ITS region show that these three new species form three distinct lineages in the Fomitiporella clade. A key to known species of Fomitiporella is given.

Beijing advanced innovation center for tree breeding by molecular design Beijing Forestry University Beijing 100083 PR China

Biology Centre of the Academy of Sciences of the Czech Republic Branišovská 31 CZ 370 05 České Budějovice Czech Republic

Institute of Microbiology PO Box 61 Beijing Forestry University Beijing 100083 China

Shandong Provincial Key Laboratory of Applied Mycology Qingdao Agricultural University Qingdao 266109 China

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