Observation 177272: Pisolithus Alb. & Schwein.
When: 2014-09-05
No herbarium specimen

Notes: These look like a smooth-surfaced Scleroderma, except the interior of the fruit body is composed of variously colored layers of nuggets.

I have no clue.

“Transplanted” one into a similar habitat on my property. Grassy area with shrubs and ornamental trees.

Proposed Names

18% (2)
Eye3
Recognized by sight
63% (3)
Eye3 Eyes3
Recognized by sight
60% (2)
Recognized by sight: Aka Dyemaker’s Puffball. By “tranplanting” this, you may well have “cultivated” it, Dave. It is mycorrhizal with many many trees and shrubs, especially oaks and pines. In my experience it really likes birch too.
Used references: Arora, Mushrooms Demystified.

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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If the hornbeam
By: Daniel B. Wheeler (Tuberale)
2014-09-09 10:32:28 MST (-0700)

was 40 feet tall and 80 feet away from this Forsythia, Hornbeam might still be the host plant.

Thanks Daniel.
By: Dave W (Dave W)
2014-09-09 04:48:35 MST (-0700)

I imagine this is less common in my area than it is elsewhere. This collection was found on a lawn with planted hornbeam. The spot where I transplanted it into my yard is near the forcynthia.

Not rare nor uncommon, Dave.
By: Daniel B. Wheeler (Tuberale)
2014-09-09 04:20:26 MST (-0700)

At least in my area, where it seems to be pretty much everywhere the Bretz floods covered. (The Bretz floods covered much of the PNW, and created the Columbia River Gorge.) Seems to like poor soils, rocky or gravel areas (less common in sand) and widespread. Ease of cultivation is likely a reason for that.

While I haven’t found it near Forsythia I wouldn’t put it past any mycorrhizal host. At least 35 known mycorrhizal associates. (Make that 36: don’t think anyone has found it with Forsythia before.) One website I found suggests 192 spores will start a new mycelium. Average sporocarp production exceeds that by several exponential factors.

Never considered the relationship/appearance to Scleroderma before, but yes, there’s that as well. Pisolithus has peridioles which degrade from the top downward, and stain everything quickly. The presence of peridioles quickly separates it from Scleroderma. Plus Scleroderma don’t stain everything they touch.

Most Pisolithus associate with eucalypts and acacias. Not many of those species in the US, at least that aren’t introduced.

By the time I find Pisolithus, the surface is usually well degraded/eroded, lending support for the common name of Dead Man’s Foot. Since you can’t see the peridioles without either slicing or breaking the sporocarp, and is poisonous, many potential collectors don’t.

Pisolithus are known to break down some persistent toxic wastes. The mycorrhizae produced can saturate a single cubic inch of soil with more than a mile of mycelium, most of which is invisible to the naked eye.

Interesting, Daniel.
By: Dave W (Dave W)
2014-09-08 11:54:41 MST (-0700)

It’s planted near a forcynthia bush.

Thanks Danny.
By: Dave W (Dave W)
2014-09-07 19:28:57 MST (-0700)

Is this rare/uncommon? I still have some material I may attempt to preserve.

Created: 2014-09-07 18:49:50 MST (-0700)
Last modified: 2014-09-08 15:11:06 MST (-0700)
Viewed: 44 times, last viewed: 2016-07-15 19:24:49 MST (-0700)
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