Observation 89926: Geopyxis vulcanalis Peck
When: 2012-03-17
No herbarium specimen

Notes: On soil, in a mixed forest (Tualatin Hills Nature Park).

6 mm tall. 6 mm diameter at top.

Spores 11-17 × 9-10.5 microns.

One specimen collection.

Proposed Names

28% (1)
Recognized by sight
28% (1)
Recognized by sight
61% (2)
Recognized by sight: Does not need burnt ground and does not have to smell like sulfur.
Used references: Tylutki, E. E. 1979. Mushrooms of Idaho and the Pacific Northwest Discomycetes. Univ. Press of Idaho, Moscow, Idaho. 133p.

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
By: Sava Krstic (sava)
2012-03-20 00:01:18 PDT (-0700)

Thanks for the ID.

By: Darvin DeShazer (darv)
2012-03-18 22:14:22 PDT (-0700)

It’s in Mushroom Demystified

By: Sava Krstic (sava)
2012-03-18 22:06:41 PDT (-0700)

The only description I have of G. vulcanalis is from the PNW Key Council (http://www.svims.ca/council/Peziza.htm). It says “some Geopyxis species have sulphur odor”, which doesn’t help much. In my last year collection (observation 68715), the sulphur smell was quite memorable.

PNW also says “paraphyses slightly thickened in upper part, reaching a width of 4 um at tip”. We don’t have this here.

If it’s a Geopyxis
By: Sava Krstic (sava)
2012-03-18 17:02:29 PDT (-0700)

… then it’s not carbonaria (habitat) nor vulcanalis (no sulphur odor).

Danny, thanks for the hint. Do you have a reference to a key to Geopyxis?

Created: 2012-03-18 10:44:48 PDT (-0700)
Last modified: 2013-02-07 01:33:36 PST (-0800)
Viewed: 197 times, last viewed: 2016-10-26 18:53:03 PDT (-0700)
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