Observation 295758: Strobilomyces Berk.

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Copyright © 2017 Huafang
Copyright © 2017 Huafang

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I learn a lot from your comments, thanks!
By: Huafang
2017-10-27 20:20:18 CDT (-0500)

Mostly, I learn that I might need to get a life. “Seeing the spores clearly at high magnification in order to discern ornamentation”? I have a better solution – I’ll just ask all those Strobilomyces to wear name tags when they show up to see me.

By: I. G. Safonov (IGSafonov)
2017-10-27 11:27:13 CDT (-0500)

…is conspecific with strobilaceus , an older name, and has been deprecated. Both are European species. This paper from 2012 (http://www.czechmycology.org/_cmo/CM64204.pdf) states that the NA “floccopus” is not the European strobilaceus:
S. strobilaceus is evidently absent from eastern North America” and “[A]ll North American collections appear distinct from the European clade”.
Also, see M. Kuo’s “floccopus” page at http://www.mushroomexpert.com/strobilomyces_floccopus.html.
I don’t know how accurate this information is 5 years later, given the taxonomy of Strobylomyces presented in Bessettes’ BENA.

Thanks for clarifying my comment, Jason.
By: Dave W (Dave W)
2017-10-27 07:41:30 CDT (-0500)

I don’t find S. dryophilus up here in PA. (My understanding is this is a SE NA species.)

As for S. confusus being readily distinguishable from S. floccopus… I don’t know how to do this. Field guides often say that the rigidity of the scales allows for this distinction. But, IMO this is not a trait that can be trusted. Texture of scales is apt to vary with age and/or weather. All of the Old Man I find here (presumably either floccopus or confusus) I call “Strobilomyces”.

Old Man
By: Jason Bolin (j.bolin@outlook.com)
2017-10-26 21:07:28 CDT (-0500)

Hi Dave,

I agree with you regarding spores for S. strobilaceus and S. floccopus but would you not agree that S. dryophilus and S. confuses have macrocharacteristics that distinguish it from the others rather easily?

Huafang…
By: Dave W (Dave W)
2017-10-26 20:58:40 CDT (-0500)

“Strobilomyces Berk” means this mushroom species is proposed to belong to Strobilomyces, a genus authored by M. J. Berkeley (Berk). For a given example of “Old Man of the Woods”, it’s often virtually impossible to confidently name the exact species without seeing the spores clearly at high magnification (in order to discern ornamentation).

Old Man
By: Jason Bolin (j.bolin@outlook.com)
2017-10-26 19:43:24 CDT (-0500)

S. dryophilus or S. strobilaceus are both found in the US. S. floccopus is only European I believe. Maybe Roy Halling who is the authority on this species will chime in eventually :)

S. dryophilus is found with oak hence the name which means “oak loving.” I would expect to see red in the cap as it is prone to cracking and the red is the staining exposed flesh.

If I had to guess what this one is, I would say S. dryophilus based on stipe ornamentation and the general look of the cap.

What does proposed name "Strobilomyces Berk. " mean?
By: Huafang
2017-10-26 19:22:26 CDT (-0500)

Does this mean we don’t know what species it is? But we are sure it’s Strobilomyces and “Berk.” is the one defined the Genus??? I meant why not the proposed name is “Strobilomyces” no “Berk.” next to it.

What other Strobilomyces species we have in midwest?

Old Man
By: Jason Bolin (j.bolin@outlook.com)
2017-10-26 13:29:29 CDT (-0500)

Tough to say if this is S. dryophilus or S. strobilaceus so I won’t propose a new name.

Created: 2017-10-25 21:38:42 CDT (-0500)
Last modified: 2018-04-14 09:51:05 CDT (-0500)
Viewed: 113 times, last viewed: 2019-04-18 23:29:43 CDT (-0500)
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