Posts tagged with ferns

Going (Lady) Gaga over ferns

The rock fern, Cheilanthes sieberi, a New Zealand relative of the newly re-named Gaga ferns. Photo Leon Perrie. © Te Papa.

USA fern taxonomists have created a minor stir after re-classifying a group of central American ferns into a new genus named Gaga, after the singer Lady Gaga. Abstract of the article formally naming the new genus Gaga. Youtube video of the taxonomists discussing their research. The researchers say the naming for Lady Gaga was in… Read more »

Curiosities, world-firsts, and monsters – fern spotting in Wellington

  • A so-called monstrous or crested frond of hound’s tongue fern, Microsorum pustulatum. The lobes of the fronds of hound’s tongue fern do not normally fork at their apices. Photo © Leon Perrie.
  • First record of the hybrid between Polystichum neozelandicum and P. silvaticum. Photo © Leon Perrie.
  • The reproductive structures of Polystichum silvaticum are naked, lacking the shield-like protective coverings that characterise its relatives. Photo © Leon Perrie.
  • Polystichum_silvaticum_6784_WrightHill4

On Saturday I joined the Wellington Botanical Society’s field trip to Wright Hill in Karori, Wellington. Wellington city would not be my first choice of locality for fern spotting, but we still found plenty to keep me interested. The filmy ferns Hymenophyllum flexuosum and Trichomanes endlicherianum are always pleasing finds. Although widespread, they are not… 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.
  • Lycopodiella_cernua_KnightsPoint2
  • 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 »

West Coast Fern Fieldwork 2012, 1 – what we were doing

Gleichenia ferns often grow entangled with one another and with other plants; hence their common name of tangle ferns.  But our understanding of them is also in a tangle.  Two or three species are currently recognised in New Zealand, but I think there are at least five.  The picture is of a new species.  It looks similar to the others from above, but very different when viewed from below.  I hope to formally describe it in a year or so.  Then I will be able to show you the differences.  Our fieldwork significantly extended the known occurrences of this fern.  Photo Leon Perrie. © Te Papa.

I’m just back from 10 days collecting ferns in the South Island’s West Coast. From previous collections, we knew of several currently unrecognised species of fern that occur on the West Coast. We investigated these records, visiting the sites to collect more material for our studies and to assess the plants in the field, including… Read more »