Antrodiella chinensis sp. nov., a Chinese representative of the Antrodiella americana complex

Abstract

A new wood-decaying polypore, Antrodiella chinensis, is described and illustrated from China based on morphological characteristics and phylogenetic analysis of rDNA ITS sequences. The new species belongs to the Antrodiella americana complex, and is characterized by an annual habit, resupinate basidiocarps, cream to straw coloured pore surface with larger and regular pores, and oblong-ellipsoid basidiospores. Discriminating characteristics between the new species and the closely related species in the complex are discussed.

Contribution to the Antrodiella americana species complex (Basidiomycota, Polyporales).

“…Antrodiella niemelaei has small pores, approx. 4 per mm, A. americana medium pores 1-3 per mm, and A. chinensis has large pores, 1-2 per mm in our specimens, but 0.5-1.5 per mm in the original description (Yuan 2013). The above pore size values are measured in young and well-developed basidiocarps.…”

“…1) In addition to geographic distribution and rDNA sequences, pore size is a good species character in the A. americana complex (Figs. 2-4), which was already stated in some earlier publications (Vampola & Vlasák 2011, Yuan 2013. Antrodiella niemelaei has small pores, approx.…”

“…Yuan belong to the A. americana complex and have been separated from Antrodiella americana Ryvarden & Gilb. recently (Vampola & Vlasák 2011, Yuan 2013. The whole group of species around A. americana is characterised by their ecology.…”

“…They all belong to so-called successor species (Niemelä et al 1995, Piątek 2001 inhabiting wood decayed by some other fungi, in this case specifically of the family Hymenochaetaceae. Three geographically separated species are recognised: Antrodiella americana in North America, A. chinensis in East Asia, and A. niemelaei in Europe (Gilbertson & Ryvarden 1986, Vampola & Vlasák 2011, Yuan 2013.…”

Taxonomy and multi-gene phylogeny of Datronia (Polyporales, Basidiomycota)

“…Recently, molecular data along with morphology were used to certify the taxonomy and phylogeny of wood-inhabiting fungi in China (Cui et al 2008, 2011b, Cui 2013, Cui & Decock 2013, Li & Cui 2013, Tian et al 2013, Yuan 2013, Zhao & Cui 2013, Zhao et al 2013). During investigations of wood-inhabiting fungi in China, nearly 200 specimens were preliminarily identified as Datronia spp., but their taxonomic affinities and phylogenetic relationships remain uncertain.…”