Observation 154553: Pisolithus Alb. & Schwein.
When: 2013-10-11
(37.51° 122.15° 100m)
No herbarium specimen

Notes: Growing in a planter in which essentially nothing can grow, under a deck most likely painted with lead paint that is shedding profusely into the planter. Incredible number of spores produced on slightest movement or disturbance.

Proposed Names

29% (3)
Eye3
Recognized by sight
Based on microscopic features: round spiny spores
72% (3)
Eyes3
Recognized by sight
-33% (3)
Recognized by sight

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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This may seem like an odd request,
By: Daniel B. Wheeler (Tuberale)
2015-11-11 21:33:56 CST (-0500)

but here goes. Pisolithus is mycorrhizal, meaning it must have a host plant (tree) to survive. It does not need to be in the same pot to do that. A host plant (call it a pine) 100 feet away could be associated with mycorrhizal fungi at least that far distant. Here’s where it gets interesting. Pisolithus can form massive amounts of mycelium, which could invade a pot from a drain hole. Pisolithus tinctorius is known to like toxic waste, like lead paint and even lead from car exhaust. This is probably a good thing, at least for those who are trying to clean it up. Pisolithus can concentrate lead in its sporocarp, thus lessening the amount in the surrounding soil.

So the question should be “Are there any trees within 100 feet of the pot?”

Do you recall
By: Byrain
2015-11-11 12:27:46 CST (-0500)

what the potential hosts could of been?

Created: 2013-12-09 11:21:26 CST (-0500)
Last modified: 2015-11-11 11:52:45 CST (-0500)
Viewed: 61 times, last viewed: 2016-10-22 09:26:38 CDT (-0400)
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