, Volume 11, Issue 4, pp 907-913
Date: 31 Jan 2012

Fomitiporia pentaphylacis and F. tenuitubus spp. nov. (Hymenochaetales, Basidiomycota) from Guangxi, southern China

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Two specimens of Hymenochaetaceae were collected from Guangxi, southern China, during a recent field trip in August 2011. They are described and illustrated here as two new species, Fomitiporia pentaphylacis and F. tenuitubus, based on a combination of morphological and phylogenetic (ITS and nLSU sequences) data. The two species share subglobose to globose, hyaline and thick-walled basidiospores with strongly cyanophilous in cotton blue and dextrinoid reaction in Melzer’s reagent. These characters are typical for Fomitiporia, differing from other genera in Hymenochaetaceae. F. pentaphylacis resembles F. pusilla in field by its minute basidiocarps, but F. pusilla has distinctly multiple tube layers and smaller basidiospores. F. tenuitubus is similar to F. erecta in both macro- and micro-morphological features, except its larger basidiocarps, smaller pores, and slightly shorter basidiospores. In the phylogenetic perspective, the two species nested within the Fomitiporia clade, but were separated from other sampled species as well as from each other.