Posts categorized as Ferns

Spider citizen science for schools and Early Childhood Centres

Black tunnelweb spider, Porrhothele antipodiana. Wellington, 14 January 2015. Photo © Tony Wills CC BY-SA. http://naturewatch.org.nz/observations/1180262

If your school or Early Childhood Centre contributes a photo of a spider (or fern) to our citizen science projects, we’ll include the photo in Te Papa’s DeCLASSIFIED! exhibition*. More on the exhibition DeCLASSIFIED! Nature’s secrets exposed at Te Papa. * provided the contributed photo has a Creative Commons licence. It is a nice way… Read more »

New Flora treatments online, including hairy tree ferns and fork ferns

The fork ferns Tmesipteris tannensis (left) and Tmesipteris elongata (right) are amongst the species covered in the just-published eFloraNZ treatments. Fork ferns are often found growing on the trunks of tree ferns. Photo © Leon Perrie

New electronic Flora of New Zealand (eFloraNZ) treatments have just been published for six fern families in New Zealand.   The new treatments include the hairy tree ferns, Dicksonia, and the fork ferns, Tmesipteris. Each eFloraNZ treatment is a definitive, peer-reviewed account of a group of plants. eFloraNZ treatment for the Dicksoniaceae (the hairy tree ferns, including whekī… Read more »

The DeCLASSIFIED! citizen science projects have been running for nearly three months. These projects are an opportunity to learn spiders and ferns with Te Papa’s experts, and to help us with our research. The Ferns with Te Papa project has gathered up more than 920 observations from 59 contributors. 365 of these observations have been… Read more »

Last week Te Papa Botany curator Leon Perrie and I attended the Uawa BioBlitz in Tolaga Bay. Organized by the Allan Wilson Centre and Groundtruth, the BioBlitz was an intense 24 hours of species discovery. Scientists from a variety of organisations were joined by members of the local community, including kids from the Tolaga Bay… Read more »

Help us make discoveries

Garden two-spined spider, Poecilopachus australasia. Auckland. rfdawn CC BY-NC

Interested in the ‘outdoors’? Want to learn more about the animals and plants around you? Want to make discoveries? Perhaps even find a new species? Want to help (1) Te Papa with its scientific research and (2) New Zealand better understand and manage its biodiversity? Sounds like the citizen science projects accompanying the DeCLASSIFIED! exhibition… Read more »

Tangle ferns untangled

The undersides of the four species of Gleichenia tangle fern accepted for New Zealand. From top: alpine tangle fern, Gleichenia alpina; tangle fern, waewae-kötuku, Gleichenia dicarpa; pitted tangle fern, Gleichenia inclusisora; carrier tangle, matua-rarauhe, Gleichenia microphylla. Scale bar = 2 cm. Composite image © Te Papa.

A focus for my research in 2014 has been preparing an account on the Gleicheniaceae fern family for the online Flora of New Zealand. More on the revolutionary online Flora of New Zealand. The Gleicheniaceae in New Zealand comprises nine species in the genera Dicranopteris (one species, restricted to central North Island thermal areas), Gleichenia… Read more »

A new tree fern

The newly recognised Dicksonia lanata subsp. hispida. Fairly common in the northern North Island, usually in kauri forests. Photo Leon Perrie. © Te Papa.

New Zealand has a new tree fern – kind of. Te Papa Research Fellow Patrick Brownsey and I have recently recognised a subspecies within the stumpy tree fern, tuokura, Dicksonia lanata.  The new name is Dicksonia lanata subspecies hispida.  It is only kind of a new tree fern, as it was first recognised as something different… Read more »

Subtropical tree fern challenge

  • 1 C. Reproductive structures of Cyathea milnei, from the Kermadec Islands, in cultivation at Otari-Wilton’s Bush, Wellington. Photo Leon Perrie. © Te Papa.
  • 1 B. Cyathea milnei, from the Kermadec Islands, in cultivation at Otari-Wilton’s Bush, Wellington. Photo Leon Perrie. © Te Papa.
  • 1 A. Cyathea milnei, from the Kermadec Islands, in cultivation at Otari-Wilton’s Bush, Wellington. Photo Leon Perrie. © Te Papa.
  • 2 A. Cyathea kermadecensis, from the Kermadec Islands, in cultivation at Otari-Wilton’s Bush, Wellington. Photo Leon Perrie. © Te Papa.

I spent yesterday afternoon in the fernery of Otari-Wilton’s Bush, examining two tree fern species from New Zealand’s subtropical Kermadec Islands. More details below, including ‘why?’. But first, a challenge… Each of these Kermadec tree ferns is closely related to a (different) mainland New Zealand species. Can you tell which mainland species? One of the… Read more »

Doodia rasp ferns become Blechnum hard ferns

  • Blechnum neglectum, previously Pteridoblechnum neglectum, found only in north-eastern Australia. Right: Blechnum diversifolium, from New Caledonia. Blechnum diversifolium is more closely related to the species previously placed in Pteridoblechnum than it is to most species of Blechnum. Photos Leon Perrie. Composite © Te Papa.
  • Blechnaceae ferns are common in several parts of the world. For instance, all New Zealanders will be familiar with kiokio and its relatives in the genus Blechnum, colloquially known as “hard ferns” because of their coriaceous fronds.  Kiokio (Blechnum novae-zelandiae) is a common sight on road cuttings, amongst other habitats, and occurs throughout the country. Photo Leon Perrie. © Te Papa.
  • Left: rasp fern, Blechnum parrisiae, previously called Doodia australis, occurs in both Australia and New Zealand. Right: Blechnum gibbum, from New Caledonia. Blechnum gibbum is more closely related to the species formerly placed in Doodia than it is to most species of Blechnum. Photos Leon Perrie. Composite © Te Papa.
  • Blechnum orientale, in Fiji. Most species of Blechnum in New Zealand are “dimorphic”, with obviously different fertile and sterile fronds. (The exception is Blechnum fraseri, which is only partially dimorphic.) However, many overseas Blechnum are “monomorphic” like Blechnum orientale, which is widespread in the tropics from Asia through Australia to the Pacific.  Photo Leon Perrie. (c) Te Papa.

A key principle in the scientific classification of animals, plants, and other living things is that the system of scientific names reflects their relationships. This is because there is only a single evolutionary history, and it provides an objective basis by which to name life. As we learn more about these evolutionary relationships, scientific names… Read more »