This taxon name is current. The available references for this name are:
Lemnaceae Martinov is a taxonomic synonym.
Reason: See D.J. Mabberley in Mabberley's Plant Book Ed.3, 478(2008)
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A taxon name which is no longer current will retain its ‘Threatened’ status until publication of the next Wildlife Conservation (Rare Flora) Notice.