Irpex jinshaensis sp. nov. and I. subulatus comb. nov. (Irpicaceae, Polyporales), evidenced by morphological characters and phylogenetic analysis

Abstract

A new poroid wood-inhabiting fungus in the family Irpicaceae, Irpex jinshaensis sp. nov., is described and illustrated from China based on morphological and molecular evidence. The species was collected in Yunnan Province, where it grew on the undersides of fallen angiosperm branches. I. jinshaensis is characterized by an annual growth habit, resupinate basidiocarp with white to cream pores when fresh becoming salmon to cinnamon upon drying, a monomitic hyphal system, generative hyphae thick-walled with simple septa, and occasionally covered with small crystal granules, the presence of encrusted cystidia and subglobose to globose basidiospores. The phylogenetic analysis based on ITS + nLSU rDNA sequences shows that the new species belongs to Irpex, clustering with I. hydnoides, I. hacksungii and I. lacteus with strong support. In addition, a new combination, I. subulatus, is proposed based on morphological and phylogenetic analyses. Morphological and molecular characters confirm the placement of both the new species and the combination in Irpex. A key to the species of Irpex known from China is provided.

Symbiotic Fungi Associated With Xyleborine Ambrosia Beetles (Coleoptera: Curculionidae: Scolytinae) and the Imperative of Global Collaboration

“…Ryvarden and recently was moved into Irpex Fries by Tian et al (2022), is very uncommon among the Xyleborini. Ambrosiodmus minor (Stebbing) is native to Eastern Asia Bright 1992, Lin et al 2019), but it has been introduced to the southeastern United States, spreading from Nassau County, Florida to Georgia, Alabama, and Mississippi by 2017 (Table 3) (Schiefer 2018).…”

Global Taxonomy and Phylogeny of Irpicaceae (Polyporales, Basidiomycota) With Descriptions of Seven New Species and Proposals of Two New Combinations

“…The species diversity, taxonomy, and phylogeny of the phlebioid clade in Polyporales were intensively studied recently by many authors, and a large number of new taxa from East Asia were described (Floudas and Hibbett, 2015 ; Miettinen et al, 2016 ; Justo et al, 2017 ; Ma and Zhao, 2019 ; Chen et al, 2020 , 2021 ; Xu et al, 2020 ; Wang and Zhao, 2021 ; Zhao et al, 2021 ; Tian et al, 2022 ). This study furthers our knowledge of this group with the addition of seven new corticioid species in the Irpicaceae.…”

Correction to: Symbiotic Fungi Associated With Xyleborine Ambrosia Beetles (Coleoptera: Curculionidae: Scolytinae) and the Imperative of Global Collaboration

“…The sister genera Ambrosiodmus Hopkins and Ambrosiophilus Hulcr and Cognato are the only xyleborines with documented symbioses with the basidiomycete fungus Irpex subulatus (= Flavodon subulatus) (Li et al 2015(Li et al , 2017Simmons et al 2016a). The presence of this fungus, which was first assigned to Flavodon Ryvarden and recently was moved into Irpex Fries by Tian et al (2022), is very uncommon among the Xyleborini. Ambrosiodmus minor (Stebbing) is native to Eastern Asia Bright 1992, Lin et al 2019), but it has been introduced to the southeastern United States, spreading from Nassau County, Florida to Georgia, Alabama, and Mississippi by 2017 (Table 3) (Schiefer 2018).…”