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

• DOI: 10.11646/phytotaxa.533.1.4
• Publication Date: 2022-02-04T02:02:10Z
• Authors: XUE-MEI TIAN; XIAO-WU MAN; ZHAN-BO LIU
• Keywords: Basidiocarp; Hymenium

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