Observation 10812: Peziza arvernensis Roze & Boud.
When: 2008-08-24
No herbarium specimen

Notes: In gravel under and around the deck behind the Fundy Sunrise Bed & Breakfast near St. Martins, New Brunswick.

I’ve seen similar Peziza on gravel near the foundation of a house in southern Ontario, decades ago. This species apparently likes disturbed or rocky ground.

These looked almost unchanged for about four days, then shriveled and blackened quickly.

A week (to the day) after the first fruiting, a second occurred (last four images). Some of these look pale; I don’t know if that’s because they’re young or because they’re actually a second species.

There had been rain the day before, and again that morning.

Proposed Names

57% (1)
Eye3
Recognized by sight
84% (1)
Eyes3
Used references: Aurora’s Mushrooms Demystified (p. 821) lists only one species as growing on the ground. But also states P. sylvestris usually grows in woods. P. sylvestris has now been deprecated to Peziza arvernensis. To further obfuscate the identification, the specimens could be growing from underground roots or buried wood. To me, the specimens closely match Peziza badioconfusa, which are found only on wood, but as the species epithet indicates, are often badly confused.

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Eye3 = Observer’s choice
Eyes3 = Current consensus

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Created: 2008-09-10 03:02:44 EDT (-0400)
Last modified: 2008-09-10 03:02:44 EDT (-0400)
Viewed: 164 times, last viewed: 2017-06-05 03:11:03 EDT (-0400)