Observation 35183: Peziza Dill. ex Fr.

When: 2010-03-31

Collection location: Clinton, Whidbey Island, Island Co., Washington, USA [Click for map]

Who: Sam Linse (BearwoodSam)

No specimen available

While propagating some rhodie cuttings I found an old plastic pot of soil with these odd organisms growing in it. They look like eaten off stipes of a larger fungus, but I think they are cups of some type. One of the pictures shows an ‘unopened’ younger individual.
Found generally in mixed coniferous forest in a pot of potting soil. Any ideas?

Species Lists


this is probably the best image of the creamy interior of the ‘cup’.
unopened individual

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prob. not domiciliana…
By: Debbie Viess (amanitarita)
2010-04-07 13:48:15 EDT (-0400)

and possibly not even Peziza with that stalk and highly textured exterior to the cup. But as Dan said, no good name possible without microscopy.
Still, a fun find.

P. domiciliana
By: Daniel B. Wheeler (Tuberale)
2010-04-07 13:18:27 EDT (-0400)

one of many possibilities, I’m afraid. Nancy Smith Weber has been studying these things … a lot … but I haven’t spoken to her in awhile. The small ascos are much more abundant and diverse than many people are aware of. Identification requires microscopy.

How about Peziza domicliana
By: Sam Linse (BearwoodSam)
2010-04-07 10:44:09 EDT (-0400)

It did come from a nursery originally, and the cup in picture 3 has now expanded to be more of a flat bowl. More pictures soon. They are about .5 to 2cm across.

Definately a cup fungus.
By: Daniel B. Wheeler (Tuberale)
2010-04-04 14:27:33 EDT (-0400)

Less certain about Peziza without some microscopy. There are other cup fungi frequently fund on humus and twigs. No reference to size, but these look tiny compared to the fir needles in one photo.