GCW57 LSues2

Byssomerulius incarnatus (Schwein.) Gilb.

Fungi that Decay Ponderosa Pine: 45 (1974)

coral-pink merulius
Annual merulioid or stereoid fungus. Caps pinkish, up to 7 cm wide. Underside wrinkled, whitish. Spore print white.
Similar species:
It has a well developed cap that is coral pink unlike Merulius tremellosus (Phlebia), which is whitish above and pinkish below.
Saprobe on dead hardwoods, causing a white rot. Has some kind of association with Stereum.
Found in April, August, and September for the known Chicago Region records. Elsewhere it is mostly found in summer and fall, and into the winter to the south.
Eastern U.S.A., Texas, Arizona, Mexico.
Chicago Region status:
Previously rare, observations about 5 years apart, to now uncommon, found three years in a row. This characteristic species has several collections from oak woodlands of Cook County, one from DuPage County, Illinois, and two from NW Indiana (Porter and Lake Counties). The closest historic collection online MycoPortal is from 1919 in Central Indiana. There are records for central and southern Illinois. Chicago seems to be at the north-western edge of the range for this species.
On Wood, Salem, North Carolina.
Seems unsettled in its taxonomic placement. Recent works treat it as Phlebia incarnata but I noticed in July 2014 that it went back in Byssomerulius. I don't know why its transfer to Phlebia with the other Merulius species did not stick. I have not seen it in a molecular phylogeny. There should be an obvious difference between these genera since Phlebia is in the family Meruliaceae, while Byssomerulius is in the Irpicaceae (recently in Phanerochaetaceae).
Description links:
Michael Kuo ; Gary Emberger ; The Mushroom Farm
Records online:
Mushroom Observer ; iNaturalist ; MycoPortal (synonyms not linked): B. incarnatus, P. incarnata, P. incarnatus,
Taxon links:
310027 MycoBank ; Index Fungorum ; Species Fungorum