Posts tagged with lancewood

Public talk on Pseudopanax

Five finger, whauwhaupaku, Pseudopanax arboreus.  Photo by Leon Perrie. (c) Leon Perrie, Wellington.

I’ll be joining Lara Shepherd (Allan Wilson Centre, Massey University) to give a talk on Pseudopanax Monday night (21 September 2009) in Wellington. We’ll begin by discussing each of the species: how to identify them and where to see them.  Then we’ll cover the results of our research projects that have looked at hybridisation between… Read more »

Our promiscuous Pseudopanax plants

  • Distribution maps for (A) lancewood, (B) coastal five-finger, and (C) their hybrids. Circles indicate natural distributions, and were compiled using data from the AK (Auckland Museum), CHR (Landcare Research), NZFRI (Scion), and WELT (Te Papa) herbaria. Squares for coastal five-finger and the hybrids indicate their ‘weedy’ distribution, this being a preliminary assessment based on my observations.
  • Maps_Sep08
  • Distribution maps for (A) lancewood, (B) coastal five-finger, and (C) their hybrids. Circles indicate natural distributions, and were compiled using data from the AK (Auckland Museum), CHR (Landcare Research), NZFRI (Scion), and WELT (Te Papa) herbaria. Squares for coastal five-finger and the hybrids indicate their ‘weedy’ distribution, this being a preliminary assessment based on my observations.
  • Coastal five-finger, houpara, Pseudopanax lessonii. Photo by Leon Perrie. (c) Leon Perrie, Wellington.

New Zealand’s plants have a bit of a reputation for pronounced promiscuity. There is supposedly a high rate of hybridisation, or individuals of one species breeding with individuals of a different species. I’m not entirely sure that this reputation is nationally deserved. Nevertheless, a striking example of hybridisation occurs in Pseudopanax, which is one of… Read more »

We have DNA

  • Pseudopanax macintyrei.
  • Pseudopanax macintyrei.
  • Adult tree of fierce lancewood, Pseudopanax ferox.
  • DNA of Pseudopanax on agarose gel after electrophoresis

The first step after collecting samples for genetic analyses is to extract the DNA. Lara and I do this for lancewood and five-finger plants (Pseudopanax) by: freezing a small piece of leaf tissue in liquid nitrogen (-196 degrees C !) and grinding it as finely as possible. adding a detergent to release the DNA from… Read more »

Lancewood hunting

  • pseudopanax_ferox_juvenile2
  • pseudopanax_ferox_juvenile1
  • pseudopanax_ferox_juvenile_leaf1
  • tepapa4wd2

Field-work is one of the best aspects of working as a Natural Environment curator at Te Papa. I get to spend about three weeks a year in the field collecting plant specimens. I’ve recently returned from ten days field-work in the South Island, collecting samples for our research on lancewood (horoeka, Pseudopanax crassifolius) and fierce… Read more »