Observation 52240: Cortinarius magicus Eichhorn

When: 2010-09-05

Collection location: Thoiry, France [Click for map]

Who: Douglas Smith (douglas)

Specimen available

Found oak, hornbeam, and fir.

Cap viscid, stipe non-viscid, bulbose base. Gills light blue-grey. Context grey in KOH, cap brick-red in KOH.

The micro-shot is of spores from the veil at 1000x in KOH. The spores are ellipsoid, brown, warted, with no germ pore. The apr. size is 7 × 4.5 um.

If I look in the Funga Nordica key to Cortinarius, this actually keys out to Cortinarius magicus. Which I’ll admit looks like a made up name, but no, there it is p699. It seems that this is very similar to C. glaucopus, except the bulb is very large, over twice as wide as the stipe. Not that I know any better, I’ll just have to go along with the keys for now…

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Proposed Names

71% (2)
Eye3 Eyes3
Recognized by sight
Used references: Funga Nordica
Based on microscopic features: As described in the text.

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Nice id…
By: Dimitar Bojantchev (dimitar)
2011-03-15 23:32:39 CDT (-0500)

Kinda belatedly, but now I am looking into it.. This my friend is indeed in the C. magicus stirps. The key par tis that olivaceous cap and from there on there are countless variations. The standard glaucopus has almost uniform light brown cap. Almost everything that I have collected in coastal California is in the magicus stirps. The true glaucopus is common up North, lots of it in Montana and Idaho that is almost 100% match to the European C. glaucopus. But the magicus stirps is very complex.


Created: 2010-09-07 13:17:14 CDT (-0500)
Last modified: 2011-03-15 23:31:40 CDT (-0500)
Viewed: 370 times, last viewed: 2018-12-03 04:00:12 CST (-0600)
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