This taxon name is not current. The available references for this name are:
Usnea undulata Stirt. is more recently known as Usnea dasaea Stirt.
Reason: Loaded from Lichen Census
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A taxon name which is no longer current will retain its ‘Threatened’ status until publication of the next Wildlife Conservation (Rare Flora) Notice.
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