A lectotype is chosen for Acrostichum barbarum L. from amongst extant Linnaean material. Lectotypes of other basionyms relevant to New Zealand representatives of the fern family Osmundaceae have all been selected previously. This article is a contribution towards clarifying the taxonomic and nomenclatural status of New Zealand plants for the plant names database (Ngā Tipu Aotearoa) and the electronic Flora of New Zealand.

Eleven species of grammitid ferns have been recognized from New Zealand, in Ctenopteris (one species) and Grammitis (10 species). On account of their morphology, it has previously been hypothesized that these species belong to a single clade. We found this to be supported by phylogenetic analysis of chloroplast DNA sequences, with the species misclassified in their current genera. Consequently, a new genus is described, Notogr...