Observation 219665: Pisolithus Alb. & Schwein.

When: 2015-10-17

Collection location: Berkeley, California, USA [Click for map]

37.8638° -122.2494°

Who: Caroline Chou (carolineachou)

No specimen available

Found in poor soil near shrubs and trees, covered with cinnamon colored powder

Proposed Names

49% (1)
Recognized by sight
Used references
56% (1)
Used references: Arora, Mushrooms Demystified. New name: P. arhizus. Provided no eucalyptus present.
75% (2)
Recognized by sight
18% (2)
Recognized by sight

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
Hosts unknown.
By: Byrain
2015-11-10 21:47:02 PST (-0800)

Pisolithus arhizus group is jumping the gun.

By: Daniel B. Wheeler (Tuberale)
2015-10-19 00:26:30 PDT (-0700)

Pulk and I have been having an interesting discourse on what Pisolithus may be found in California. (Also, what Pisolithus may be found in WA and OR.) Some Pisolithus are associated with acadia and eucalyptus. It is therefore important to qualify any Pisolithus found in close proximity to either of these tree species.

The range of eucalyptus is especially problematic in CA, as it is so widespread. Acacia not so much. Sometimes showing the interior (gleba) of the fungus can resolve these questions. Sometimes not. At least one species/variety of Pisolithus has white peridioles (seed-like structures located inside the peridium, from which the spores mature and disperse. Providing at least one photo of a specimen sliced through the center (including the root) would help this discussion.

Created: 2015-10-18 13:40:32 PDT (-0700)
Last modified: 2015-11-10 21:46:31 PST (-0800)
Viewed: 48 times, last viewed: 2017-06-20 22:07:27 PDT (-0700)
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