Observation 99518: Callistosporium luteo-olivaceum (Berk. & M.A. Curtis) Singer
When: 2012-06-21
No herbarium specimen

Notes: Found in the Turkey Creek Unit.
These were growing on wood and had caps up to 4.1 cm across.
The spores were whitish and inamyloid.
Spores were ~ 4.6-6.0 X 3.9-4.7 microns, smooth and broadly elliptical.
Spores did not change color in KOH.
They appear to be similar to a Tricholomopsis species but can’t seem to find a match.
edit; While they don’t particularly look like the C. luteo-olivaceum we see on the West Coast, I have to go along with Christian and Jay Justice, who indicated that species.

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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‘Necropigment’
By: Christian (Christian Schwarz)
2012-07-11 15:52:50 EDT (-0400)

Yes… the spores are ‘supposed’ to change color, but as Dimitar has mentioned before, and as my experience has gone, the spores don’t show any red granules in KOH at all.

Seems to be one of those often-cited but rarely verified pieces of Voodoo Mycology.

On the other hand, the cap surface of C. luteo-olivaceum has reliably changed to red in KOH every time I have tried it.

C. leuteo-olivaceum
By: Christine Braaten (wintersbefore)
2012-07-11 11:32:12 EDT (-0400)

Shouldn’t the spores change color in KOH, as well as the cap if applied there?

Created: 2012-07-08 10:39:56 EDT (-0400)
Last modified: 2012-07-11 09:32:26 EDT (-0400)
Viewed: 113 times, last viewed: 2016-12-06 18:47:23 EST (-0500)
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