(Huperzioideae, Lycopodiaceae) a new species from Vanuatu, re-circumscription of and new combinations in .

A.R.Field is described as a new species for plants endemic to the islands of Vanuatu that were previously identified with (Blume) Ching. The Vanuatuan species differs from the widespread Asian-Oceanian species in several characteristics, most notably its acutely divergent leaf arrangement and thicker less branched fertile spikes. is here re-circumscribed as plants occurring in Asia and into Oceania as far east as the Solomon Islands, being replaced eastwards by . In addition, new nomenclatural combinations are made for , a species from Polynesia and for , a species from Malesia.