Observation 84776: Truncocolumella citrina Zeller

When: 2011-12-17

Collection location: Salt Point State Park, Sonoma Co., California, USA [Click for map]

Who: Darvin DeShazer (darv)

No specimen available

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MO Obs. #23698
By: Daniel B. Wheeler (Tuberale)
2011-12-18 18:15:38 CST (-0500)

does not appear to be areolate over more than 1/2 the upper surface area.

Not brownish scales, Darvin. When the surface extrudes from under the humus layer, it can dry out, causing minor cracking. Truncocolumella citrina should typically be underground or barely erumpent above mineral soil, but still under considerable humus layer, which protects the peridium from dehydration.

Additionally, T. citrina has a yellowish columella, which is more easily seen in sliced cross-section directly through the sterile columella. Your collection appears sectioned through the side. Obs. 23698 appears sectioned directly through the central columella, and exposing yellow branches within the gleba.

An interesting feature in older specimens is that the gleba auto-digests into a dark green or dark brown liquid mass, which tastes and smells strongly of licorice. T. citrina is edible. I would suggest using the very mature liquid portion, which can be squeezed into fondue.

Was your collection already dug when you found it? Was the upper peridium somehow exposed to drying winds?

This one Daniel
By: Darvin DeShazer (darv)
2011-12-18 16:05:06 CST (-0500)
Tried to find it.
By: Daniel B. Wheeler (Tuberale)
2011-12-18 15:55:22 CST (-0500)

Only thing I found was MO #51797, which does not have an areolate cap. Is there another?

Small world
By: Darvin DeShazer (darv)
2011-12-18 15:42:21 CST (-0500)

There’s another photo of the brownish scales on MO. It’s from British Columbia and you ID’d it!

It certainly looks like T. citrina.
By: Daniel B. Wheeler (Tuberale)
2011-12-18 15:26:15 CST (-0500)

Good find, Darv! One thing puzzles me: the areolate cap is unlike any other T. citrina I’ve ever seen. Have you come across that feature in CA?

Created: 2011-12-18 01:25:13 CST (-0500)
Last modified: 2011-12-18 01:25:17 CST (-0500)
Viewed: 68 times, last viewed: 2017-06-10 07:10:07 CDT (-0400)
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