A key to the genera of the xanthochroic polypores. The xanthochromic polypores (sen. str.) are typically yellowish-brown, becoming permanently blackish in KOH, hyphal system monomitic or dimitic, clamp connections and cystidia absent; setiform hyphae and or hymenial setae may be present; spores smooth, IKI negative; when hgnicolous cause typical white rot. The group is characterized and each genus is described with synonyms. The accepted genera are: Coltricia, Coltriciopsis, Fomitiporella, Inonotus, Phellinus and Phylloporia. Coltriciopsis is described as a new genus.
Polyporaceae; Xanthochroic polypores