Observation 211391: Pisolithus Alb. & Schwein.
When: 2015-07-24

Notes: Possibly a sycamore associate!! (Never seen that before)
Update: Ochre spores suggest, just by induction, that it’s actually associated with the less-nearby Eucalyptus… despite growing pressed up against a sycamore root.

The placement of these two fruiting bodies around sycamore trees seems to suggest that, although there is a Eucalyptus maybe 30’ away across a cement walkway.

Growth in the middle of grass is very atypical IME. Perhaps this weirdness is not just a coincidence with the sycamore possibility.

Update: One is growing right up against an exposed root of a murdered sycamore! This doesn’t necessarily imply symbiosis, though… Pisolithus like to do this with cement too.

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Care must be made
By: Daniel B. Wheeler (Tuberale)
2015-07-28 00:36:50 UTC (+0000)

when comparing a recently dead tree, and a tree that has been dead for more than a year. As a mycorrhizal fungus, Pisolithus may grow into the rotting wood, which would act as a water reservoir. If the tree had been dead over a year, not likely it was still associated with a mycorrhizal species. Dr. James Trappe has suggested most mycorrhizal species die out within a year of tree death.

Yep
By: Jacob Kalichman (Pulk)
2015-07-27 16:44:30 UTC (+0000)

I’ve found Pisolithus around what appeared to be ancient Eucalyptus remains.

Mycorrhizal fungi
By: Daniel B. Wheeler (Tuberale)
2015-07-27 16:29:45 UTC (+0000)

may fruit from apparently dead hosts up to a year after the tree was cut. I collected truffles from a row of trees Paul Bishop cut for a fire road the following year.

Good title point… chopped down…
By: Jacob Kalichman (Pulk)
2015-07-27 10:12:55 UTC (+0000)

Let’s say “highly amputated”

I really hope to find more, further from Eucalyptus, to confirm the sycamore host.

Murdered? Perhaps. Dead? No.
By: Daniel B. Wheeler (Tuberale)
2015-07-27 04:18:11 UTC (+0000)

There is a live sycamore shoot where the Pisolithus was found, sprouting from the root, I suppose. Proximity to sycamore indicates this is the likely symbiont for this fungus.

Created: 2015-07-26 21:58:52 UTC (+0000)
Last modified: 2015-09-01 20:58:13 UTC (+0000)
Viewed: 65 times, last viewed: 2015-10-06 04:14:35 UTC (+0000)
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