Observation 52239: Cortinarius infractus (Pers.) Fr.

When: 2010-09-05

Collection location: Thoiry, France [Click for map]

Who: Douglas Smith (douglas)

Specimen available

Found oak, hornbeam, and fir.

Cap slightly viscid, under a covering of floccose yellow scales, stipe non-viscid, and covered with yellow fibrous hyphae. Gills dark grey, bright purple mycelium at the base. Context and cap grey in KOH. Taste strongly bitter (like oooh, aaah, get that out of my mouth bitter).

The micro-shot is of spores from the veil at 1000x in KOH. The spores are sub-globose brown, warted with a germ pore. The apr. size is 8 × 6.5 um.

This all pretty clearly makes these Cortinarius infractus, agrees in all ways with descriptions. And, also, they don’t really look like what I’ve called C. infractus in the past… ah, ooops.

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By: Irene Andersson (irenea)
2010-09-07 14:00:27 PDT (-0700)

The first is one of the forms I recognize,
but the second – wasn’t even bitter, so it’s got to be some other species.

Here is one:
By: Douglas Smith (douglas)
2010-09-07 13:03:44 PDT (-0700)

Here is one I’ve called C. infractus in the past:


Actually, I still think that is C. infractus, and is an example of your slender stipe version. The spores there are exactly the same.

But the other Cort. I just posted:


I would have called C. infractus, even has the subglobose spores, except they are bigger.

I also found one the week before, I’m not sure I posted that one. I think I have ones from last year, but I didn’t post them, since I couldn’t get close to an id on them, but I thought they might be C. infractus…

I’m fairly sure on these at least, I guess that is something.

Several forms of infractus?
By: Irene Andersson (irenea)
2010-09-07 12:40:43 PDT (-0700)

These look pretty much like the ones I have seen in hardwood forests. What I have found under conifers look rather different, with smoother and darker caps and more slender stems.. I don’t know what you have been calling infractus in the past :-)

Created: 2010-09-07 11:04:35 PDT (-0700)
Last modified: 2013-03-01 12:21:38 PST (-0800)
Viewed: 75 times, last viewed: 2017-06-07 20:58:03 PDT (-0700)
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