A New Species of Luteoporia (Meruliaceae, Basidiomycota) from an Urban Forest in the Brazilian Amazon.

Luteoporia camposii is described based on integrative morphological and molecular evidence from material collected in an urban park in the Brazilian Amazon. The species is characterized by annual, resupinate basidiomes; vivid yellow pores when fresh, becoming brown to dark brown upon drying; tissues turn purple in KOH; a monomitic hyphal system with thick-walled generative hyphae bearing clamp connections; and subcylindrical basidiospores (3.4-5.0 × 1.6-2.3 μm). Phylogenetic analyses based on combined ITS and nrLSU rDNA sequences recovered L. camposii as a strongly supported monophyletic lineage sister to L. albocitrina, with L. albomarginata resolved as the basal lineage to this clade. Morphological characteristics and molecular phylogeny consistently support L. camposii as a distinct species. A full description, illustrations, phylogenetic analyses, comparisons with related species, and an identification key to the currently known species of Luteoporia are provided.