The filmy fern Hymenophyllum pumilio was described in 1911 from a single collection made during 1910 from New Caledonia. It was not recorded again until its rediscovery during an expedition to New Caledonia in 2012. In the interim, it was synonymised in 2007 with Hymenophyllum minimum , which had been regarded as endemic to New Zealand. After comparing the new collections with H. minimum from New Zealand, we reinstate H. pumil...

In a recent revision of generic circumscriptions in the Lindsaeaceae ferns, three of the four New Caledonian species previously placed in Sphenomeris were transferred to Odontosoria . Using phylogenetic analyses of chloroplast DNA sequences, we show that the fourth species, Sphenomeris alutacea (Mett.) Copel., also fits within this expanded Odontosoria . Accordingly, we provide a new combination, Odontosoria alutacea (Mett.) P...

Hymenophyllum pluviatile is described as a new and uncommon fern endemic to New Zealand. Phylogenetic analyses of chloroplast DNA sequences show that H. pluviatile is distinct from the other New Zealand species in Hymenophyllum subgenus Globosa . Hymenophyllum pluviatile can be distinguished from its closest New Zealand relatives, Hymenophyllum australe and Hymenophyllum flexuosum , by a suite of morphological and ecological c...

Gleichenia inclusisora is described here as a new and uncommon fern endemic to New Zealand. Several morphological features readily distinguish G. inclusisora from other Gleichenia species, and in the context of New Zealand species these features include: sori embedded in the lamina; bicolorous, orbicular to ovate, peltate scales on abaxial surfaces of the ultimate segments; glabrous stipes and glabrescent proximal costae; and...