This taxon name is not current. The available references for this name are:
Heterodeaceae Filson is more recently known as Cladoniaceae Zenker
Reason See P.M. Kirk et al. (Eds) Dictionary of the Fungi, 10th Edition. CABI, Wallingford p. 314 (2008)
See also: A longer explanation of these and other terms in our Plant Names Primer.
A taxon name that is no longer current will retain its ‘Threatened’, ‘Extinct’, or ‘Extinct in the Wild’ status until a new name has been published in a Biodiversity Conservation Order.