Stipe bases with yellowish/reddish tomentum.

Hemlock dominated woods.

This material is with Igor.

Species Lists


Copyright © 2017 I. G. Safonov (IGSafonov)
Flash deployed; richer/warmer colors
Copyright © 2017 I. G. Safonov (IGSafonov)
Flash deployed; richer/warmer colors
Copyright © 2017 I. G. Safonov (IGSafonov)
Flash deployed; richer/warmer colors

Proposed Names

79% (2)
Recognized by sight
83% (1)
Based on chemical features: DNA sequencing and BLASTn results

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= Observer’s choice
= Current consensus


Add Comment
By: I. G. Safonov (IGSafonov)
2018-01-19 05:20:38 CET (+0100)

Thanks for pointing this one out — I haven’t seen Alan’s subvelutipes-like observations. Yep, I see the similarities with our conifer-loving subvelutipes, but I am almost certain the SW material is something else. It’s worthwhile to run an MO search targeting these critters from other parts of the country.
I heard Noah Siegel and Jonathan Frank were working on publishing a paper on red-pored Neoboletus/Sutorius endemic to western USA.

Igor, your mention of New Mexico reminded me of something.
By: Dave W (Dave W)
2018-01-19 04:56:15 CET (+0100)

Alan Rockefeller has recorded several observations from Mexico that may represent one of the taxa associated with the subvelutipes moniker. Eg. obs 111285.

Thanks, Dave
By: I. G. Safonov (IGSafonov)
2018-01-19 04:43:00 CET (+0100)

Now we have 6 sequenced collections of this genotype. The data is very clean – all the associated LSU and TEF-1 traces exist as single haplotypes. The phenotypic concept of this taxon is taking shape, too. I am very curious about the biogeography of this species. Seems like it’s restricted to the Northeast, or within the natural range of the hemlock tree, but Roy Halling has collected something very similar in New Mexico many years ago:
Yes, I, too, bet the Caroga Lake material, designated by us (Northeast Bolete Consortium) as the B. subvelutipes Peck epitype, will yield identical LSU and TEF-1 sequences. I am expecting these data any day now.

Nice work Igor.
By: Dave W (Dave W)
2018-01-19 04:16:15 CET (+0100)

Looks like we’ve got the eastern NA conifer-loving subvelutipes pretty well figured out. I’d bet my personal $20 maximum that the Caroga Lake material turns out to be the exact same taxon (obs 285181).

TEF-1-alpha sequencing results/discussion
By: I. G. Safonov (IGSafonov)
2018-01-19 03:48:56 CET (+0100)

> A clean and contiguous TEF-1-alpha sequence of 631 bps was obtained from this material and uploaded to this observation. There are no ambiguous characters.

> This sequence is identical to the aligned regions in the TEF-1 sequences of the following post:
obs 242312, obs 248499, obs 2488500 (all 3 from Lackawanna State Forest, PA)
obs 277482 (Waterford, CT)
obs 278342 (Port Dover, Ontario, Canada)

> For a discussion of BLASTn results, see obs 242312.

Thanks for posting, Dave
By: I. G. Safonov (IGSafonov)
2017-07-13 18:00:44 CEST (+0200)

After seeing this gorgeous collection in the flesh and blood, I am almost convinced these hemlock-associated types are likely different from the typical subvelutipes-like oak-loving taxon/taxa I find in NJ (e.g, see my obsies from Washington Crossing State Park). Yes, there is a lot of overlap in morphology, yet I think there are notable differences, seen mostly in the stipe. At the same time, I’ve made at least one collection of an oak-loving ‘subvelutipes’, obs 104307 which unfortunately was not saved, that bears a very close resemblance to the hemlock-associated red-pored taxon that in my understanding has a good chance of being Peck’s B. subvelutipes.
I intend to do a bit more additional sequencing of our ‘subvelutipes’ collections. I am hoping that one of the single-copy protein-coding loci can resolve discrete moropho-types that were shown to have identical LSU traces. I will add 282008 and one of the WCSP collections of mine to the queue.

Created: 2017-07-13 15:38:04 CEST (+0200)
Last modified: 2019-05-24 01:20:52 CEST (+0200)
Viewed: 115 times, last viewed: 2019-08-21 00:41:18 CEST (+0200)
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