Observation 168409: Pisolithus Alb. & Schwein.


vertical section
horizonal section
natural break
natural break
patently black surface leaves an ochre streak
in situ

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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In Oregon,
By: Daniel B. Wheeler (Tuberale)
2014-06-26 21:26:05 COT (-0500)

we don’t have many eucalypts. Few can withstand our typical winter, and die out. For the few that can stand our winters, they are usually overtaken with other mycorrhizae.

I think I read (somewhere) that Pisolithus is often associated with acacia and eucalypts. Several Pisolithus are from Australia and New Zealand; others are from Africa.

California eucalpts are so common they are often planted next to freeways and as fast-growing replacement trees for drier climates. I know some eucalypts are found in extreme Southwestern Oregon. I don’t know which species or varieties these are.

I’ve seen
By: Noah Siegel (Noah)
2014-06-26 20:16:58 COT (-0500)

two different species with Eucalyptus. The ones I found in LA this past spring appeared to be the newly described Pisolithus croceorrhizus. They were growing under Corymbia citriodora (=Eucalyptus citriodora).

By: Jacob Kalichman (Pulk)
2014-06-26 18:13:10 COT (-0500)

Nope, no other significant trees there. Are all the eucalyptus ones in the west supposed to be the same species?

probably no Pisolithus arrhizus here in the west anyway
By: else
2014-06-26 14:59:20 COT (-0500)

but other species, nameless, as so many….

By: Christian (Christian Schwarz)
2014-06-26 14:47:49 COT (-0500)

This is almost certainly an exotic Pisolithus. This species is common with Eucalyptus throughout California

By: Daniel B. Wheeler (Tuberale)
2014-06-26 14:32:42 COT (-0500)

Eucalypts are one of the most common Pisolithus hosts, but not for native Pisolithus (Pisolithus tinctorius = P. arrhizus).

By: Jacob Kalichman (Pulk)
2014-06-26 12:59:49 COT (-0500)

was right there for sure. I’ll check whether there was anything else.

Pisolithus is 100% mycorrhizal.
By: Daniel B. Wheeler (Tuberale)
2014-06-26 12:27:20 COT (-0500)

Possible hosts?

Created: 2014-06-26 11:24:52 COT (-0500)
Last modified: 2014-06-27 22:24:57 COT (-0500)
Viewed: 131 times, last viewed: 2016-10-22 11:36:55 COT (-0500)
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