Observation 54598: Cortinarius flexipes (Pers.) Fr. var. flexipes

When: 2010-09-22

Collection location: Blue Ridge Parkway, Jackson Co., North Carolina, USA [Click for map]

Who: Ron Pastorino (Ronpast)

No specimen available

These were growing in mixed woods at about 5600 ft.
The spores were ~ 8.0-9.2 X 5.0-6.2 microns and slightly warted.
This is slightly larger than normally reported so I can’t be sure of the Id in spite of the distinctive cap.

[admin – Sun Nov 14 14:13:25 +0000 2010]: Changed location name from ‘Blue Ridge Parkway, Jackson Co. , North Carolina, USA’ to ‘Blue Ridge Parkway, Jackson Co., North Carolina, USA



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Ok, the spores, if you insist…
By: Dimitar Bojantchev (dimitar)
2010-10-05 13:03:38 CDT (-0500)

You want get much love from he spores in Telamonia in general, but in this case yes, it is a very useful character. In my collection — mildly ornamented, 7.2-9 × 5-6µ — definitely in the same ballpark.

The spores of C. hemitrichus are distinctly narrower and here I align myself with the concepts as exposed in Cortinarius Flora Photographica (Brandrud, Melot, et al) . Of course, I will sequence that Swedish material in the next batch and compare against other trusted data. But in this complex genre of Telamonia the Europeans also have a lot of work to do. Still they are far ahead than us in North America. And there is no Cortinarius research worth talking about on the East Coast (where this collection is from).


did you smell it Ron?
By: Debbie Viess (amanitarita)
2010-10-05 12:18:49 CDT (-0500)

and where are the flexipis micrographs for comparison, Dimi? We have come to expect them with your work…;)

What say you, Irene?

Sounds like it’s good collecting in NC this season, Ron…lucky you.

I think Cortinarius flexipes var. flexipes
By: Dimitar Bojantchev (dimitar)
2010-10-05 11:11:28 CDT (-0500)

The moss habitat and overall looks points strongly to Cortinarius flexipes var. flexipes — here are some recent shots from Sweden.

I think your material falls clearly in that complex. It seems to be very broadly spread in the Northern Hemisphere, although that I’d keep the door open for differences since NC is very poorly studied.

I never see such fibrillose-squamulose examples in the West though.

One KEY ASPECT to these little critters is to pay attention to their pleasant, cedar-wood like odor.


Created: 2010-10-02 23:45:36 CDT (-0500)
Last modified: 2011-03-15 07:36:47 CDT (-0500)
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