Abstract
Phylloporia, in the Hymenochaetaceae, is a polypore genus with a worldwide distribution. The new taxon Phylloporia lonicerae is introduced, which is the first Phylloporia species to originate from Japan. This species grows exclusively on living Lonicera japonica and is distinguished by annual, sessile basidiocarps that occur in clusters, pileal surface of narrow, concentrically sulcate zones, 6–8 pores per mm, duplex context separated by a black zone, dimitic hyphal system and broadly ellipsoid basidiospores, 3.2–4 × 2.3–3.1 µm. Phylogenetically, P. lonicerae is nested within the Phylloporia clade as a distinct terminal lineage with full statistical supports and sister to the clade of P. minutispora, P. cf. pulla and P. terrestris with weak supports. Besides Phylloporia bibulosa, P. chrysites and P. spathulata, P. lonicerae is the fourth species of Phylloporia recorded from Japan. An identification key to all accepted 48 species of Phylloporia is provided.
Highlights
Phylloporia Murrill, in the Hymenochaetaceae Donk, was introduced for an unusual polypore species, P. parasitica Murrill growing on the underside of living leaves in Columbia (Murrill 1904)
The phylogenic tree (Fig. 1) shows that the strongly supported Phylloporia clade (98 % in maximum likelihood (ML), 1 in Bayesian Inference (BI)) consists of 44 terminal lineages and the six P. lonicerae samples formed a new lineage with full statistical supports (100 % in ML, 1 in BI)
Phylloporia lonicerae is morphologically distinct from other species in Phylloporia by its annual, sessile basidiocarps that occur in clusters, pileal surface of narrow, concentrically sulcate zones, 6–8 pores per mm, duplex context separated by a black zone, dimitic hyphal system and broadly ellipsoid basidiospores, 3.2–4 × 2.3–3.1 μm
Summary
Phylloporia Murrill, in the Hymenochaetaceae Donk, was introduced for an unusual polypore species, P. parasitica Murrill growing on the underside of living leaves in Columbia (Murrill 1904). A number of new species have been described from Africa (Ipulet and Ryvarden 2005, Decock et al 2015, Yombiyeni et al 2015, Yombiyeni and Decock 2017), the Americas (Valenzuela et al 2011, Decock et al 2013, Ferreira-Lopes et al 2016) and Asia, especially China (Gafforov et al 2014, Cui et al 2010, Zhou and Dai 2012, Zhou 2013, 2015a, 2015b, 2016, Liu et al 2015, Chen et al 2017, Ren and Wu 2017). Some species are saprobes that colonise woody debris (Ipulet and Ryvarden 2005, Zhou 2015b, Ferreira-Lopes et al 2016) and others are parasites usually of specific plant hosts (Zhou 2015a, Ren and Wu 2017, Yombiyeni and Decock 2017)
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