Observation 49396: Rhizopogon Fr. & Nordholm

When: 2010-07-31

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

Who: Lucy (lucya)

No specimen available

near pine and eucalyptus

[admin – Sat Aug 14 01:58:42 +0000 2010]: Changed location name from ‘Blue Mountains, NSW, Australia’ to ‘Blue Mountains, New South Wales, Australia’

Proposed Names

-3% (4)
Recognized by sight
-14% (4)
Used references: Peridium lacking rhizomorphs; gleba loculate; no sterile base; proximity to Pinus.
-10% (3)
Recognized by sight

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
By: Daniel B. Wheeler (Tuberale)
2010-08-04 11:22:05 CDT (-0400)

I personally have never seen Descolea before. But the general shape, including a pinched and gathered base, no sterile base, IS suggestive. There are some things with the peridium (outer shell) that don’t quite fit for me, but the rest looks very close. I’d vote for it, if you suggest it, Lucy. More likely a better fit than Gymnomyces, which I cannot find reference for in Australia.

Descomyces sp.?
By: Lucy (lucya)
2010-08-04 07:31:10 CDT (-0400)

Could they be?

Thanks Tuberale
By: Lucy (lucya)
2010-08-03 05:04:21 CDT (-0400)

Sorry for the confusion of pic uploaded – I have now created separate observations for each of these.

Rhizopogon unlikely.
By: Daniel B. Wheeler (Tuberale)
2010-08-01 19:23:06 CDT (-0400)

Rhizopogon is characterized by having rhizimes (root-like threads) on the peridium. I cannot see any here.

The gleba (interior) is loculate (chambered), the chambers being fairly small and convoluted.

No spores workup provide or included in description. Some of the first photos appear to show a puffball or maybe Scleroderma, including what may be a sterile base.

Gymnomyces is another possibility here, for at least some of the sporocarps. It rarely fruits above ground, does not generally have rhizomorphs, and is common with pine.

There is also a strong possibility this fungi is actually mycorrhizal with eucalyptus, as the area shown of the find clearly has taller eucalypts in the area.

Created: 2010-07-31 05:07:43 CDT (-0400)
Last modified: 2010-08-15 18:37:05 CDT (-0400)
Viewed: 116 times, last viewed: 2017-10-31 19:15:34 CDT (-0400)
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