When: 2016-07-20

Collection location: Central, Louisiana, USA [Click for map]

Who: Logan Wiedenfeld (LoganW)

No specimen available

Notes:
Velvety surface. Red pore surface. Red stipe up until apex, at which point the red intergrades with yellow. Context and pore surface stain dark blue to dark purple (maybe I’m color-blind).

Images

IMG_2208 (2).JPG
IMG_2209.JPG
IMG_2222 (2).JPG

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= Observer’s choice
= Current consensus

Comments

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Logan,
By: I. G. Safonov (IGSafonov)
2017-05-30 00:20:40 CDT (-0400)

It’s not a new species — it was described in 1971 and featured in The Boletes of Michigan (species #193; p. 356). Your pix are also in good agreement with that seen in Bessette’s BENA. I am not really familiar with this taxon. The mottled caps and dark red-pores seem to be the defining features that separate this species from other red-pored boletes. It would be nice to eventually DNA-barcode this entity.

Cool!
By: Logan Wiedenfeld (LoganW)
2017-05-29 23:48:03 CDT (-0400)

New species, Igor?

Logan,
By: I. G. Safonov (IGSafonov)
2016-07-21 00:20:53 CDT (-0400)

Kuo’ subluridellus page has pictures of what looks like something in the subvelutipes group to me. Interestingly, Roger Phillips page for the taxon (http://www.rogersmushrooms.com/...) sports a similar description and pictures.
I don’t know where they got this idea of B. subluridellus having red in stipes, as Smith and Thiers’ original description clearly states “pale lemon yellow”:
http://quod.lib.umich.edu/...
Feeling confused yet? :-)

That’ll
By: Logan Wiedenfeld (LoganW)
2016-07-20 23:22:23 CDT (-0400)

work. I now see the Bessette’s description. I’m going to blame this one on Kuo ;) His description gives more leeway for the stipe color (the yellow is often “coated with red,” whatever that means).

In any case, thank you. This is how I learn.

Such a stunning bolete. I hate having it marooned in “group” land. But I appreciate your rigor.

Logan,
By: I. G. Safonov (IGSafonov)
2016-07-20 23:12:46 CDT (-0400)

The stipe of B. subluridellus is pure pale yellow. Its cap is usually bright red or pinkish red when young.
Check out the Northeast Bolete Consortium Project observations for the B. subvelutipes group. We are also seeking well-documented collections of red-pored bluing boletes from south, southeastern and central USA.

I’m
By: Logan Wiedenfeld (LoganW)
2016-07-20 22:48:03 CDT (-0400)

listening, Igor. School me, brother. Why not subluridellus?

(From my admittedly limited perspective, the staining is not right for B. subvelutipes group. Also, not many obs in my neck of the woods for that species group.)