Posts tagged with botany

Snares Islands Flora: an introduction

  • Olearia lyallii. Image: Antony Kusabs, Te Papa.
  • Stilbocarpa robusta. Image: Antony Kusabs, Te Papa.
  • Stellaria media, Gull Point, Boat Harbour, North East Island. Image: Antony Kusabs, Te Papa
  • Stellaria decipiens. Image: Antony Kusabs, Te Papa

The vascular flora of the Snares Islands is limited, at only 22 species (including one hybrid Poa).  Despite this, my first impression of the main island was an island covered with lush vegetation.  And there are still some botanical challenges – we failed to locate the fern Histiopteris incisa for instance.  Vegetation communities on the Snares… Read more »

How to learn ferns

  • Close up of the scales of Cyathea (left) and the hairs of Dicksonia (right). Photos Leon Perrie, © Te Papa.
  • Trichomanes venosum. In Trichomanes, the reproductive structures are enclosed by a tubular, often trumpet-like structure. Photo Leon Perrie. © Te Papa.
  • Cardiomanes reniforme, kidney fern. More closely related to Hymenophyllum than Trichomanes, although the reproductive structures are at least superficially more similar to the latter. Photo Leon Perrie. © Leon Perrie.
  • Tmesipteris elongata, a fork fern. More closely related to ferns than to seed plants or lycophytes. Nevertheless, the relationship is a distant one, and it doesn’t look very fern like. There are at least five species in New Zealand, and they are usually epiphytic on tree ferns. Photo Leon Perrie. © Te Papa.

Last weekend I was out with the Kapiti-Mana branch of Forest and Bird, giving them an introduction to ferns. A few weeks back, I gave a similar walking-talk at Otari-Wilton’s Bush in Wellington. Many people find ferns an appealing group to learn. Aside from their iconic status in New Zealand, good learning resources are available, and… Read more »

More tangle – a new species of tangle fern

  • Frond underside of Gleichenia inclusisora. The white and flattish frond segments are one of its distinctive features. The undersides of the frond segments of Gleichenia dicarpa are whitish but pouched, while those of Gleichenia microphylla are flat but green. Photo Leon Perrie. © Te Papa
  • Except when very young, the lower stems of Gleichenia inclusisora are usually naked of scales or hairs, in contrast to the other Gleichenia species in New Zealand. Photo Leon Perrie. © Te Papa.
  • All four Gleichenia species presently recognised in New Zealand can grow together, to the extent of intertwining. Gleichenia inclusisora most commonly co-occurs with Gleichenia dicarpa. Gleichenia inclusisora (right) often has a shinier upper-surface, sometimes allowing the two species to be distinguished at a distance. However, this doesn’t always work as well as it does in this photo! Photo Leon Perrie. © Te Papa.
  • Close-up of the frond underside of Gleichenia inclusisora. The reproductive structures (sori) each comprise three sporangia (which produce the spores, the yellow dots) embedded in a pit in the frond. Some empty pits are visible. The distinctive rounded, bicoloured scales can also be seen at top left. Photo Leon Perrie. © Te Papa.

I’d like to introduce a new species of New Zealand fern, Gleichenia inclusisora. Our scientific description was published just before Christmas 2012. The recognition of this species edges the number of native New Zealand fern and lycophyte species nearly to 200. Abstract of paper describing Gleichenia inclusisora. Email me if you would like a pdf… Read more »

Wellington Botanical Society Bulletin 2012

Mänuka, Leptospermum scoparium. One of many native plants put to many uses. Captain Cook used it with rimu to make beer.

The botanically-inclined may find something of interest in the just-published Wellington Botanical Society Bulletin. Number 54 includes: the uses of some common native plants. notes on the propagation of native plants. accounts of the diatoms and bryophytes recorded during the 2011 bioblitz on Mana Island. the use of names in botany. detailed accounts of the… Read more »

Fieldwork in the Subantarctic Islands, a hundred years ago

I’ve been enjoying our scientist’s fieldwork posts.  We have scientist’s photographs from several historic field trips in the photography collection.  My favourites are in this photo album from the 1907 Expedition to the Subantarctic Islands.  The Expedition was initiated by the Canterbury Philosophical Institute with support from the Government, and studied plants, animals, soils and marine life on the Auckland… Read more »

Highlights from forget-me-not field trips from last summer

  • Here I am collecting Myosotis on a beautiful day on Coronet Peak, Otago, South Island.
  • Myosotis macrantha, near Queenstown, Otago, South Island (WELT SP091596). Photo by Phil Garnock-Jones.
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This year I went on several field trips to collect native forget-me-nots (genus Myosotis). With my research on native plantains now finished, my current research focus is now to figure out how many native species of forget-me-nots we have in New Zealand, revise their taxonomy, understand their evolutionary history, and amend their conservation status. Te… Read more »

A new native plantain, Plantago udicola

  • Botanical illustration of Plantago udicola. Copyright Bobbi Angell.
  • Habitat of Plantago udicola from Lake Sylvester (WELT SP090374/A). Photo copyright Mei Lin Tay.
  • The new species, Plantago udicola from Lake Sylvester (WELT SP090375/A). Photo copyright Mei Lin Tay.
  • The new species, Plantago udicola from Lake Sylvester (WELT SP090375/A). Photo copyright Mei Lin Tay.

Victoria University Emeritus Professor Phil Garnock-Jones and I have just described a new species of native plantain, Plantago udicola. The name udicola means “dwelling or living in damp places” and is in reference to the types of sites the new species is usually found in. Of the 200 or so species of Plantago worldwide, there… Read more »

West Coast Fern Fieldwork 2012, 4 – new, problematic, and interesting species

  • The cave spleenwort, Asplenium cimmeriorum, only occurs in limestone areas of the west coasts of both the North and South Islands. It is commonly found at cave entrances. We found a new sub-population in the Charleston Conservation Area. Photo Leon Perrie. © Te Papa.
  • We found the lycophyte Lycopodiella cernua at a site near Haast, further south than the Okarito limit noted in the literature. Interestingly, this species also occurs in the tropics! Photo Leon Perrie. © Te Papa.
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  • Some authorities treat the small plants at lower right as a distinct species, swamp kiokio (Blechnum minus). Others regard them as part of a variable kiokio (Blechnum novae-zelandiae), big plants of which are at left. Photo Leon Perrie. © Te Papa.

Along with the Gleichenia and Sticherus, we were targeting a possible new species of Hymenophyllum filmy fern. We also made collections of several ‘problem’ species and other interesting finds. Cave spleenwort’s distribution based on Te Papa’s collections. Other blog posts about our West Coast fern fieldwork cover: What we were doing. Where we went. Sticherus… Read more »