Claim: Phlyctibasidium is a fungi that is a part of the incertaw sedis family (Latin for 'of uncertain placement').
Evidence: Phlyctibasidium is a fungal genus of uncertain taxonomic placement in the Agaricomycetes. Family: Incertae sedis Incertae sedis (Latin for 'of uncertain placement') or problematica are terms used for a taxonomic group where its broader relationships are unknown or undefined.