The nomenclatural history of the Asplenium obtusatum complex is reviewed. It is shown that when treated at subspecific rank, A. obtusatum subsp . northlandicum Brownsey, based on a New Zealand type, is the correct name for the octoploid taxon that occurs in both New Zealand and Australia. However, when raised to species rank there are two earlier validly published names, A. decurrens Willd. and A. sarmentosum Willd., based on...

Dennstaedtiaceae is a medium‐sized family of ferns in New Zealand with 11 indigenous and two naturalised species. Lindsaeaceae is a small family with just three native species and one naturalised. Three lectotypes are chosen for basionyms relevant to New Zealand: Dicksonia davallioides R.Br., Lindsaea trilobata Colenso and Pteris vespertilionis Labill. Justification for the choice is provided in each case. This short communica...

Asplenium lepidotum is described as a new and uncommon fern endemic to the northwest of the South Island of New Zealand. It is related to Asplenium oblongifolium and Asplenium obtusatum , and like them, A. lepidotum has pinnate fronds and is probably tetraploid, the latter character state being inferred for A. lepidotum from its spore size. Asplenium lepidotum is distinguished by abundant scales on the adaxial surface of its p...

Three lectotypes are chosen for basionyms relevant to New Zealand representatives of the fern family Thelypteridaceae: Aspidium novae‐zeelandiae Ettingsh., Nephrodium propinquum R.Br. and Polypodium pennigerum var. giganteum Colenso. 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 Zeal...

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...

Lectotypes are designated for 23 basionyms relevant to New Zealand representatives of the fern family Hymenophyllaceae: Hymenophyllum alpinum Colenso, H. antarcticum C.Presl, H. cristulatum Rosenst., H. frankliniae Colenso, H. imbricatum Colenso, H. lyallii Hook.f., H. megalocarpum Colenso, H. oligocarpum Colenso, H. polychilum Colenso, H. pusillum Colenso, H. pygmaeum Colenso, H. rufescens Kirk, H. scabrum var. hirtum Colenso...

Thirteen lectotypes are chosen for basionyms relevant to New Zealand representatives of the fern family Gleicheniaceae: Gleichenia alpina R.Br., Gleichenia ciliata Colenso, Gleichenia cunninghamii Hook., G. cunninghamii var. montanum Dobbie, Gleichenia dicarpa R.Br., Gleichenia flabellata R.Br., Gleichenia hecistophylla A.Cunn., Gleichenia hermannii R.Br., Gleichenia microphylla R.Br., Gleichenia patens Colenso, Gleichenia pun...

Two lectotypes are chosen for basionyms relevant to New Zealand representatives of the fern family Ophioglossaceae— Ophioglossum vulgatum var. minimum Hook.f. and Ophioglossum minimum J.B.Armstr. 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.

Five lectotypes are chosen for basionyms relevant to New Zealand representatives of the fern families Cyatheaceae and Loxsomataceae: Alsophila colensoi Hook.f., Cyathea kermadecensis W.R.B.Oliv., C. smithii Hook.f., C. tricolor Colenso and Hemitelia microphylla Colenso. Additional syntypes are identified for Loxsoma cunninghamii R.Br. ex A.Cunn. No original material of Cyathea medullaris var. integra Hook. has been located and...

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...

Dicksonia lanata subsp. lanata and D. lanata subsp. hispida are raised from varietal rank and recognised here as separate subspecies. The former is distinguished primarily by the lack of a trunk and the presence of dense clusters of woolly, chestnut brown hairs at costa junctions on the underside of the laminae; the latter has short arborescent trunks, and longer, rigid, red–brown hairs among shorter, fine, pale brown hairs on...

The holotype of Tmesipteris fowerakeri H.N. Barber is identified and lectotypes are chosen for two basionyms relevant to New Zealand representatives of the fern family Psilotaceae— Bernhardia novae‐hollandiae Müll.Berol. and Psilotum heterocarpum Colenso. 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 electr...

Lectotypes are chosen for three basionyms relevant to New Zealand representatives of the Order Salviniales (water ferns)— Azolla pinnata R.Br., Azolla rubra R.Br. (Salviniaceae) and Pilularia novae‐hollandiae A.Br. (Marsileaceae). 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...

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...

The status of Schizaea australis and S. fistulosa in New Zealand has been uncertain. The results of a morphological analysis of 66 herbarium collections assigned to S. australis or S. fistulosa are presented here to show that two separate species are found in New Zealand, and that hybrids may occur in a few places where their distributions overlap. Lectotypes are also chosen for four basionyms relevant to New Zealand represent...

Sticherus tener is confirmed as being present on Resolution Island, Fiordland, extending from the northern half of Five Fingers Peninsula through to the centre of the island. It is also present on nearby Anchor Island in Dusky Sound, and on the Denniston and Stockton Plateaus. Sticherus urceolatus is newly recorded for New Zealand, with populations on the Stockton Plateau and near Takaka, and what appears to be a hybrid popula...

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...

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...

Lectotypes are chosen for five basionyms relevant to New Zealand representatives of the fern family Polypodiaceae, Dictymia lanceolata J.Sm. ex Hook.f., Polypodium dictyopteris Mett., Polypodium diversifolium Willd., Polypodium novae‐zealandiae Baker and Polypodium rupestre var. sinuatum Colenso. Two taxa originally attributed to New Zealand are excluded from the flora, Polypodium viride Gilbert and Polypodium vulgare var. aur...

It has long been thought that a potentially distinct species of Lastreopsis occurs on Raoul Island in the Kermadec Islands, and it is here described as L. kermadecensis Perrie et Brownsey sp. nov. It has been allied with L. glabella or L. pacifica , but is morphologically most similar to L. smithiana from eastern Australia, sharing similar indumentum, gland and rhizome characteristics. Lastreopsis kermadecensis differs from L....