Observation 50686: Cortinarius subgenus Telamonia (Fr.) Trog

When: 2010-08-14

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

Who: Ron Pastorino (Ronpast)

No specimen available

These had caps up to 5 cm across and they were dry.

I didn’t check these for KOH reactions because with their look and light brown gills, I initially took them for Inocybes. I had too many collections and just turned them into the NAMA presort tables. Only after looking at the rusty spore print and the photos did I realize they were Corts. The stems did seem to stain brown with handling. The spores were ~ 8.0-9.0 X 6.1-7.1 microns. Not sure what subgenera to put them in…Telamonia?



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Yep, one of the cluster of Hydrocybe (Telamonia) out West…
By: Dimitar Bojantchev (dimitar)
2010-08-21 03:42:36 CDT (-0400)

We have a similar species that is vernal fruiting and has the same broadly ellipsoid spores. Some sources from the PNW call them generically “vernus”, but the name is very broadly misapplied. It would be interesting to compare the evolutionary closeness of the Colorado material to what we get – I’d bet they come every close…

This group has been studied very little. Moser did some investigation of similar species from Wyoming in 2000, but his work is very hard to interpret and falls far shorter of even an observation like this one.

Some might be tempted to put these closer to Section Hinnulei, but that’s not supported. Most of collections of Telamonia are still to be sequenced, so I’ll have a lot better perspective in a couple of months.


P.S. In dry weather they leave more of the patches of white universal veil on the stipe…

Created: 2010-08-18 22:25:53 CDT (-0400)
Last modified: 2010-08-22 00:00:28 CDT (-0400)
Viewed: 55 times, last viewed: 2018-06-07 13:05:23 CDT (-0400)
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