Two new species of Hymenochaetaceae from tropical Asia and America

• Published in: Frontiers in cellular and infection microbiology Vol. 12; p. 1100044
• Main Authors: Zhou, Meng, Ji, Xiao-Hong, Liu, Hong-Gao, Miller, Kurt, Yuan, Yuan, Vlasák, Josef
• Format: Journal Article
• Language: English
• Published: Switzerland Frontiers Media S.A 19.01.2023
• Subjects: Asia; Basidiomycota - genetics; Cellular and Infection Microbiology; DNA, Fungal - genetics; DNA, Ribosomal; DNA, Ribosomal Spacer - genetics; Hymenochaetaceae; Phylogeny; polypore; Sequence Analysis, DNA; Spores, Fungal; taxonomy; white rot; wood-decaying fungi; Asia; wood-decaying fungi; white rot; Hymenochaetaceae; taxonomy; polypore
• ISSN: 2235-2988; 2235-2988
• DOI: 10.3389/fcimb.2022.1100044

Two new species in Hymenochaetaceae, and , are illustrated and described from tropical Asia and America based on morphology and phylogenetic analyses. is characterized by perennial, pileate, and woody hard basidiomata when fresh; ash gray to dark gray, encrusted, concentrically sulcate, and irregularly cracked pileal surface; circular pores of 7-8 per mm with entire dissepiments; a dimitic hyphal system in trama and context; absence of setal element and presence of cystidioles; and broadly ellipsoid, yellowish brown, thick-walled, and smooth basidiospores measuring 5-6 μm × 4-5 μm. is characterized by perennial and resupinate basidiomata with dark gray to almost black pore surface when fresh; small and circular pores of 7-9 per mm, a monomitic hyphal system with generative hyphae simple septate, hyphoid setae dominant in subiculum but not in tube trama, and absence of cystidia; and ellipsoid, hyaline, thin-walled basidiospores measuring 4-5 μm × 3-3.6 μm. The differences between the new species and morphologically similar and phylogenetically related species are discussed. Keys to and have also been provided.