Observation 97999: Boletus vermiculosoides A.H. Sm. & Thiers
When: 2012-06-22
No herbarium specimen

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Walter,
By: I. G. Safonov (IGSafonov)
2012-06-23 23:25:34 EDT (-0400)

Thanks for pointing this out. I am sure that the “competent identifiers” at the NAMA foray had more than just a collection of button stage basidiocarps to confidently arrive at their respective assignments. ;-)

For those who are interested, there is a nice discussion regarding the origin of B. vermiculosoides stemming from Smith & Thirs’s interpretation of the Peck collection at http://www.mushroomexpert.com/boletus_vermiculosus.html.

It is possible that
By: walt sturgeon (Mycowalt)
2012-06-23 18:36:52 EDT (-0400)

B. vermiculosus and B. vermiculosoides are the same species. Smith’s interpretation of a Peck collection may be why there is confusion.

Look at these 2 NAMA foray collections from Pa. Both identified by competent identifiers.
http://mushroomobserver.org/84792?q=LwoM
http://mushroomobserver.org/81997?q=LwoM

They sure look the same to me.

excellent attempt
By: Eva Skific (Evica)
2012-06-23 18:23:19 EDT (-0400)

at keying it out.
thank you

pore colour = same kind of dark vermelion.( I’m colour blind) B. fagicola is out, because there is no reticulation on the stipe. B. vermiculosoides and B. vermiculosus are my choices
LOL
By: I. G. Safonov (IGSafonov)
2012-06-23 13:12:30 EDT (-0400)

Key it out? Sure, by the process of elimination — maybe.

We can rule out the luridus section because the stipe is not reticulated. Now, the important part is the color of the pore surface. To me it appears dark brown/maroon rather than some shade of red, though the true hue cannot be discerned well enough because the pores surface is not lit well. This is definitely not B. subvelutipes, and the other ones in the subvelutipes section aren’t fitting well either (based on the pore surface at least). Hence, I go with the section that includes B. fagicola, B. subgraveolens, B. vermiculosoides, and B. vermiculosus. In the absence of other info, such as macrochemical tests, this is the best we can do… Of course, I could be wrong, but at least I tried. :-)

a-a
By: Eva Skific (Evica)
2012-06-23 12:58:27 EDT (-0400)

not for me
still need help with identifying

Very interesting.
By: Daniel B. Wheeler (Tuberale)
2012-06-23 12:36:18 EDT (-0400)

The fourth photo then becomes very important. I see green and red bruising showing on the stipe; gills which are red in youth, but purplish when sliced. Should be simple to key out, right?

they belong
By: Eva Skific (Evica)
2012-06-23 12:29:35 EDT (-0400)

to the same collection.

small mushrooms is young the other is an old. ( very dry weather)

the last picture was taken,second after cut

Daniel,
By: I. G. Safonov (IGSafonov)
2012-06-22 21:59:38 EDT (-0400)

Actually it looks like there are three different specimens! The second one is represented by the second picture from the bottom (the cap is not areolate). The third specimen (the oldest one) is in the last picture, and might be the same species as No. 1. The flesh staining hues can be explained by diffent lighting conditions, or the last pic was taken after the color began to fade. Only Eva can tell us if they belong to the same collection…

They do look like different species, don’t they?
By: Daniel B. Wheeler (Tuberale)
2012-06-22 21:08:26 EDT (-0400)

The first two photos show reddish gills with aqua staining on the gills and pileus. But the last two photos show dark purplish gills, and slate-gray staining. Yes, the bottom photos are from a more mature Bolete. But are they the same species?

Two different specimens?
By: I. G. Safonov (IGSafonov)
2012-06-22 20:35:10 EDT (-0400)

Are both from the same collection?
Judging from the color of the pore surface (looks like a dark shade of brown-maroon), these could be either B. vermiculosus or B. vermiculosoides.

Thanks for the sliced gill shot.
By: Daniel B. Wheeler (Tuberale)
2012-06-22 17:46:28 EDT (-0400)

Could you maybe include (in the future) a shot of sliced gill and stipe? Sometimes the stipe has the greater color change.

Interesting aqua coloration on the sliced pileus, and the upper cap looks like it got a little bruise or slice, too.

Created: 2012-06-22 17:40:21 EDT (-0400)
Last modified: 2012-06-23 18:44:49 EDT (-0400)
Viewed: 228 times, last viewed: 2016-01-26 06:59:14 EST (-0500)
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