This taxon name is current. The available references for this name are:
Murchisonia Brittan is a taxonomic synonym.
Reason: See U.M. Sirisena et al. in Nuytsia 27:121 (2016)
See also: A longer explanation of these and other terms in our Plant Names Primer.
A taxon name which is no longer current will retain its ‘Threatened’ status until publication of the next Wildlife Conservation (Rare Flora) Notice.