Observation 27906: Cortinarius sect. Variecolores Konrad & Maubl. ex Brandrud & Melot
When: 2009-10-30
No herbarium specimen

Notes: These were growing in a primarily spruce area.
The spores were approx. 11.8 X 7.2 mircrons and fairly rough.
The flesh of the cap and stipe was light purple. I’ve only checked the reaction of the dried cap with KOH and it looks like a dark (reddish) brown.

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it’s funny, Ron …
By: Debbie Viess (amanitarita)
2016-07-22 22:47:53 WIB (+0700)

how some photos are so characteristic of the photographer, no matter their subject.

Yours are one of those. I recognized your work before I read your name!

You are a tireless documentarian, and for that we are all grateful.

Section Variecolores, if the same as what I think…
By: Dimitar Bojantchev (dimitar)
2009-11-09 21:17:45 WIB (+0700)

I think I know this one — Section Variecolores. Haven’t chance to look at the spores yet. I’m on the road collecting too…

http://mushroomhobby.com/temp/Cort1/Cort%202.1.jpg
http://mushroomhobby.com/temp/Cort1/Cort%201.1.jpg
http://mushroomhobby.com/temp/Cort1/Cort%203.1.jpg

D.
Just saw
By: Andreas Gminder (mollisia)
2009-11-09 14:47:50 WIB (+0700)

that the KOH-reaction was made with dried material! That won’t work, so the sect. Variicolores is not excluded in my eyes. In sect. Phlegmacium no european species matches. Close comes C. aremoricus, but the spore size doesn’t fit.
So I still stick on a Variicolores though the veil is unusual (to european species …)

the KOH-reaction of the flesh being negative
By: Andreas Gminder (mollisia)
2009-11-09 14:42:19 WIB (+0700)

suites well to the abundant veil and would lead to section Phlegmacium. Then it may be something in the vicinity of C. saginus, but in Europe I don’t know of a species in that group with such violet coloures. Those violet colouration was the reason to think of sect. Variicolores for me. But the rich veil is unusual for that section, and the KOH-reaction rules it definitely out. The cap being nearly dry is not unusual in some Phlegmacium groups, escpecially in the Variicolores and also in sect. Phlegmacium.

KOH reactions seem to be brown
By: Ron Pastorino (Ronpast)
2009-11-09 10:46:35 WIB (+0700)
to reddish brown on the cap flesh and lower stipe flesh(dried material). By the way, the caps were a little wet, but I wouldn’t call them viscid. The immature caps had a partial white hoary coating on them and they all showed some white basal tomentum.
KOH-reaction of the flesh!
By: Andreas Gminder (mollisia)
2009-11-09 03:44:19 WIB (+0700)

Hi Ron, unfortunately you haven’t tested the KOH-reaction of the flesh, but only the cap. In those Cortinarius species from the subgenus Phlegmacium, the KOH-reaction is a major feature one has always to know. You have to test the cap margin, the bulb margin, the underside of the bulb and the flesh. If the cap colour is changing colour when oxygen reaches it (e.g. the Laeticolores in the Fulvi: C. elegantissimus e.g.), then test the areas which have not oxydized yet.
Your collections would certainly show a chrome yellow reaction in the flesh with KOH and should then belong in the section Variicolores within Phlegmacium. This section is quite easily recognizable because of the unique KOH-reaction.

Created: 2009-11-09 02:11:23 WIB (+0700)
Last modified: 2016-07-22 22:45:35 WIB (+0700)
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