Observation 50392: Rhizopogon Fr. & Nordholm

When: 2010-08-14

Collection location: Little Hartley, New South Wales, Australia [Click for map]

Who: Lucy (lucya)

No specimen available

near Eucalyptus and pine trees

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different from the others
By: Lucy (lucya)
2010-08-16 16:01:45 PDT (-0700)

This one was the most different from the others. It even smelt a little differently… However, the liquid part is something they all seem to do with time. Eventually, they all become a blob of goo on the ground. I’ll upload another photo later, of this same specimen, where you can see the goo much better.

In any case, it is making it’s way over to your side of the world, along with all the others so we shall soon know!

Rhizomorphs present
By: Daniel B. Wheeler (Tuberale)
2010-08-16 13:04:10 PDT (-0700)

so Rhizopogon a possibility. However, Rhizopogon rarely (if ever) has a basal attachment to the soil, and is even less rarely erumpent (visible above ground). I have found erumpent Rhizopogon in specialized conditions, usually after unusually heavy rainfall or in sandy soils, where fruiting at or slightly above the surface has advantages for animal mycophagy (animal consumption).

If I had to make a guess on this, I’d go with Austrogautieria, a genus I’m not sure has even been proposed as yet. I saw the name at OSU’s Forestry Sciences Lab, but have not heard of it since. Gautieria is a species which usually (but not always) has a columella visible within the gleba, especially when sliced through the soil basal attachment.

There may be some latex present in this collection as well. When I blow the sliced specimen up as large as possible, there is either some liquid or some exudate on the cut glebal surface. Latex may suggest something similar to Macowanites or Arcangeliella.

So lots of possibilities with this particular collection, but I don’t have enough data to be certain. Will need to see some spores, I’m afraid.

Created: 2010-08-16 03:23:10 PDT (-0700)
Last modified: 2010-08-16 03:57:32 PDT (-0700)
Viewed: 49 times, last viewed: 2018-09-05 18:06:11 PDT (-0700)
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