AUTHOR=Zhou Meng , Ji Xiao-Hong , Liu Hong-Gao , Miller Kurt , Yuan Yuan , Vlasák Josef 

TITLE=Two new species of Hymenochaetaceae from tropical Asia and America

JOURNAL=Frontiers in Cellular and Infection Microbiology

VOLUME=Volume 12 - 2022

YEAR=2023

URL=https://www.frontiersin.org/journals/cellular-and-infection-microbiology/articles/10.3389/fcimb.2022.1100044

DOI=10.3389/fcimb.2022.1100044

ISSN=2235-2988

ABSTRACT=Two new species in the Hymenochaetaceae, Fulvifomes acaciae and Pyrrhoderma nigra, are illustrated and described from topical Asia and America based morphology and phylogenetic analyses. Fulvifomes acaciae 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 × 4–5 μm. Pyrrhoderma nigra 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 × 3–3.6 μm. The difference among the new specie and morphologically similar and phylogenetically-related species are discussed. Keys to Fulvifomes and Pyrrhoderma have also been provided.