Observation 75133: Xanthoconium purpureum Snell & E.A. Dick

When: 2011-09-02

Collection location: Central Park, New York, New York Co., New York, USA [Click for map]

Who: damon brunette (damonbrunette)

No specimen available

Im naming this clustered bolete that may or may not be parasitized X purpureum because of its strange contorted and overblown shape. I encounter this a couple of times a year though not to this size.
There were yellow pores, and a mild taste. I did not have ammonia on me, which would have helped much, only KOH in which I got a red reaction on cap and orangered on stipe

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Proposed Names

28% (1)
Recognized by sight: Greenish tubes suggest Boletus

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
I agree with Roy
By: I. G. Safonov (IGSafonov)
2011-09-02 16:25:36 CDT (-0400)

Upon a careful examination of the pics, the tubes do appear green — not ochraceous yellow or yellow-brown as they should be in mature Xanthoconiums — meaning that this bolete should rather belong in the Boletus genus. The stipe in the last pic looks streaky vinaceous-brown, but I’m not sure what to make of that though.

By: Roy Halling (royh)
2011-09-02 15:29:41 CDT (-0400)

of the hymenophore in 2nd image would make me back away from comfortably calling this obs a Xanthoconium. X. purpureum has been up in the NYBG in the past week, tho’.

Damon Brunette,
By: I. G. Safonov (IGSafonov)
2011-09-02 14:12:12 CDT (-0400)

These malformed (or aborted) and/or hypomicized boletes are likely to be a Xanthoconium species, which in my experience is a quite common occurrence for this genus. What about odor — did they stink like fish? As far as the species name is concerned, these could be X. affine rather than purpureum b/c the former are much more common. You are brave to actually taste these — I would never do that and would also be wearing gloves and a face mask. :D

By: Roy Halling (royh)
2011-09-02 13:41:04 CDT (-0400)

will turn X. purpureum turquoise/blue green as well, at least in the Bronx!

I.G. need input..
By: damon brunette (damonbrunette)
2011-09-02 13:15:52 CDT (-0400)

Created: 2011-09-02 13:08:22 CDT (-0400)
Last modified: 2011-09-02 16:26:45 CDT (-0400)
Viewed: 76 times, last viewed: 2018-08-14 13:22:37 CDT (-0400)
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