What is "leucogyrophana"

Leucogyrophana is a genus of fungi in the family Hygrophoropsidaceae ( suborder Coniophorineae of the order Boletales). The genus was erected in 1958 to accommodate the species then known as Merulius molluscus (as Leucogyrophana mollusca). Several more species were described, but DNA testing in 2001 found that L. mollusca was isolated genetically from the others, and most closely related instead to Hygrophoropsis.