Observation 33600: Geoglossum nigritum Cooke
When: 2010-02-14
No herbarium specimen

Proposed Names

56% (1)
Eye3 Eyes3
Used references: MD p.867; found in mixed conifer/tanoak forest ~12 miles inland
54% (1)
Recognized by sight: Ref, MD: nigritum & many others. Microscopy is needed.

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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I suppose
By: Irene Andersson (irenea)
2010-02-16 02:16:34 CST (-0500)

that Geoglossum nigritum is one of the most common of the earthtounges in North America too (I call it umbratile).
7-septate spores gives a handful of possible species, so you also need to study the paraphyses.
Here’s a nice and simple key to Geoglossum (british, but should also work for USA):

You have probably looked here already:

spores 7-septate
By: Ryane Snow (snowman)
2010-02-16 00:34:43 CST (-0500)

These mushrooms were <1.5 cm in height and the spores were 7-septate

Created: 2010-02-15 00:09:24 CST (-0500)
Last modified: 2010-02-15 00:09:24 CST (-0500)
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