Observation 90955: Peziza repanda Pers.

When: 2012-03-25

Collection location: Sauvie Island, Oregon, USA [Click for map]

Who: Sava Krstic (sava)

No specimen available

Notes:
Common early spring Peziza in this area. Grows on cottonwood logs; sometimes on the ground/woody debris. The largest ones were over 15 cm and they are quite flattened.

Spores 14-17 × 9-10 microns. Paraphyses were difficult to find.

In the cross-section, there is a middle layer of hyphae parallel to the hymenium. On both sides of it are more or less round cells in a messy arrangement.

I’m unsure of the ID and would appreciate comments. In particular, I’m not sure if the spores I’m seeing are smooth or roughened. Guessing “smooth” is more likely, I gave repanda a higher vote than to arvernensis.

Proposed Names

61% (2)
Eye3 Eyes3
Used references: Tylutki’s “Discomycetes”; PNW Key Council key; Fungi of Switzerland
28% (1)
Recognized by sight

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Eye3 = Observer’s choice
Eyes3 = Current consensus

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Created: 2012-03-26 08:28:09 CEST (+0200)
Last modified: 2015-02-06 00:46:59 CET (+0100)
Viewed: 112 times, last viewed: 2018-04-22 20:20:56 CEST (+0200)
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