Observation 141723: Cortinarius luteus Peck

When: 2013-08-03

Collection location: Southern West Virginia Mycological private preserve, Summerlee, West Virginia, USA [Click for map]

Who: Eddee (eddeeee)

Specimen available

Growing in a small arc of 5 specimens. Terrestrial. Cap 4 cm round margin folded inward. very yellow. Gills close orange brown. Stipe 7 cm smooth light yellowish, Smell very putrefying. Like rotten meat. very foul odor. spores brown and lemon shaped Spore print Orange. Very much like Gymnopilus type of spore print
Growing in a bed of Lycopodium Obscurum. Trees near them are American Beech a Red Oak and several Tulip Poplar trees.

Proposed Names

28% (1)
Based on microscopic features: Spores lemon shaped
Based on chemical features: Negative in KOH
77% (2)
Eye3 Eyes3
Recognized by sight
56% (1)
Recognized by sight: I have found this in WV and in Algonquin park in Ontario.

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
I will add doubt to the identity….
By: Bill (boletebill)
2013-09-02 12:10:23 MDT (-0600)

…of this mushroom as Peck’s C. luteus. This mushroom is very common in CT and fruits everywhere at the edges of mossy wetlands and woodland swamps. Based on the Bessette picture and a quick read of the description in Bessette’s NE book I have been calling this C. luteus for 10 years or more but now reading Pecks description via Kauffman I would agree that these are not Pecks C. luteus. Peck describes a mushrooms with a stipe that’s thick, stout, solid (!). These are not! The stipe is always equal and somewhat thin and more often than not hollow or chambered. I saw more than a dozen of these this weekend and most were hollow stiped. It seems this mushroom needs work. I don’t know if there’s a better name extant for this but I can’t find one so I’ll continue to use C. luteus as a placeholderuntil something better comes up.

Hi Eddee
By: Noah Siegel (Noah)
2013-08-06 20:31:48 MDT (-0600)

So, I am very familiar with this mushroom, but have never been happy applying the name C. luteus to it. Peck’s original description he described a yellow capped, yellow gilled Cort (Dermocybe) that doesn’t sound like this mushroom. But Bessette called this one C. luteus in Mushrooms of NENA.

I get a foul “Coal Tar” odor from it; similar to some of the stinky Tricholoma. The odor, along with the yellow cap, rusty orange spores and faint cortina are distinctive.

I looked at your other observation, it’s not the same as this, but I don’t know what species to call it.

Hello Noah
By: Eddee (eddeeee)
2013-08-04 10:30:54 MDT (-0600)
nice to see ya, I thought at first this to be C. luteus but I have found it in the past and I do not remember the awful smell. It would seem that that would be a characteristic mark of this species that would be mentioned in field guides. I have made another observation on here but im not sure that is C. luteus because of the swollen base, http://mushroomobserver.org/31923 The spore print to me appears orange like a Gymnopilus but I know color can be an interpretation thing.

Michale Kou on mushroomexpert.com mentions the smell of Hebalomas and that some species have lemon shaped spores. The spores in the micro shot appear lemon shaped to me but once again that can be interpretation. C. luteus do have subglobose spores. Have you collected this with any frequency ? Can you recall the smell. I just took another wiff and smells like earthworms in a plastic container that have been left out in the sun for the day. really bad.

Created: 2013-08-03 20:06:32 MDT (-0600)
Last modified: 2013-12-01 15:09:08 MST (-0700)
Viewed: 102 times, last viewed: 2018-01-05 00:04:50 MST (-0700)
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