Observation 50774: Cortinarius subgenus Phlegmacium (Fr.) Fr.

When: 2010-08-14

Collection location: Fraser Experimental Forest, Grand Co., Colorado, USA [Click for map]

Who: Ron Pastorino (Ronpast)

No specimen available

This rather robust Cortinarius had caps up to 9.3 cm across and dry.
The whitish cap flesh turned slightly vinaceous after cutting.
KOH on the cap was reddish.
KOH on the cap flesh was vinaceous.
KOH on the stipe was reddish brown.

The spores were rather large, ~ 12.7-13.7 X 8.0-9.9 microns and fairly rough.

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Actually, probably closer to C. varius
By: Dimitar Bojantchev (dimitar)
2010-08-21 04:11:54 CDT (-0400)

Actually, this one probably comes close to C. varius. Debbie Viess showed me a somewhat similar collection from Oregon that reacted reddish with KOH – the real C. various doesn’t.

May sound banal, but…
By: Dimitar Bojantchev (dimitar)
2010-08-20 02:46:17 CDT (-0400)

It may sound like a cliché by now, but this is a damn interesting collection. The shape and size of the spores (not Callochroid at all), but the lilac gills and the combination of KOH reactions make it hard to find a good placement… It is in Subgenus Phlegmacium, Section Phlegmacium, but can’t get it anywhere near a clade… Let me think some more.

Great observation — perfect documentation!! You’re the best Ron!!


Created: 2010-08-19 20:43:10 CDT (-0400)
Last modified: 2011-09-13 23:34:01 CDT (-0400)
Viewed: 77 times, last viewed: 2017-04-06 18:38:48 CDT (-0400)
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