Observation 136802: Kuehneromyces lignicola (Peck) Redhead

When: 2013-06-06

Collection location: Bassetts, Sierra Co., California, USA [Click for map]

Who: Douglas Smith (douglas)

No specimen available

Found by others at the SFSU Spring Sierra course.

The first micro-shot is of a gill edge at 400x in Meltzer’s. The cheilocystidia are fusoid, pointed, wavy on a non-fertile edge.

The second micro-shot is of spores from the gill at 1000x in Meltzer’s. The spores are smooth, ellipsoid, tan, thick-walled-ish, with a clear germ pore. The apr. spore size is 7 × 4 um.

With these cheilocystidia and the spore shape, these are Deconica. With the light tan gills, and the small spore size, these key out to D. crobula using Noordeloos’ Strophariaceae book.

Having said that, these do look rather different from other D. crobula that I’ve id’ed, although these are rather small and strange conditions.

Proposed Names

86% (1)
Recognized by sight
Used references
Based on microscopic features
94% (3)
Recognized by sight: spore size – fits, cystidia – fit, macroscopy – great fit!

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
By: Christian (Christian Schwarz)
2013-06-26 17:17:26 CDT (-0400)

I was trying to figure out for a while how ‘these cheilocystidia and the spore shape’ necessarily led to Deconica… then I gave up

Created: 2013-06-18 15:17:25 CDT (-0400)
Last modified: 2013-06-27 03:29:57 CDT (-0400)
Viewed: 89 times, last viewed: 2017-10-15 10:39:15 CDT (-0400)
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