Observation 214282: Boletaceae Chevall.
When: 2015-08-26

Notes: The nearest sightings of Boletus pseudosensibilis in MO and in mycoportal are over 700 miles away and north – north east. None the less, this seemed to be the best fit I could find. I think it must be closely related to Boletus pseudosensibilis.

Habitat: Bottom area with Sweet Gum, Oak and Birch. Growing in the clay-sand soil 5-10 feet or more away from nearest trees.

Bruising: the slightest touch to the stem, pores resulted in a blue-grey stain that faded with time. Cap Flesh did not stain when cut.

Smell : insignificant
Taste : did not
Spore Print: – Yellow-Olive

Caps: Flesh thick, clear yellow. Top surface, pileus, dry, light ridged texture, not fuzzy, dull, rose-brown with hint of yellow.

Measurements: see photos. Large Cap 3.5 inches across. Stems – 3/4 – 7/8 inch thick

Pores: much shallower than cap flesh – 3-4 mm thick. Tiny round yellow pores. Pores are yellow on smaller specimen.

Spore: Shape and Size – see photos

[30/1/1] L (-10.1) 10.3 – 11.7 (-11.9) μm x W (-4.1)4.2 – 4.7 (-4.8) μm, (L = 7.1 μm, W = 2.9 μm), Q (-2.31) 2.34 – 2.69 (-2.78), Q = 2.48 cylindric

Images

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Boletus.jpg
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20150826-PANO2_2015P1000557.jpg
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20150826-PANO2_2015P1000550.jpg
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20150828-LX1_2015P1050662.jpg
1000 x – in dilute Lugol’s Iodine
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20150828-LX1_2015P1050661.jpg
1000 x – in dilute Lugol’s Iodine
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20150828-LX1_2015P1050659.jpg
1000 x – in dilute Lugol’s Iodine
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20150828-LX1_2015P1050658.jpg
1000 x – in dilute Lugol’s Iodine
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20150828-LX1_2015P1050650.jpg
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20150827-PANO2_2015P1000579.jpg
Section of largest cap. About 30 hours after finding, resting overnight under a plastic cup to make spore print, flesh has darkened a little and shrunk a little.

Proposed Names

-28% (1)
Used references: mushroomexpert.com
Based on microscopic features: Spore Shape and Size
Based on chemical features: no reaction to KOH, blue-green flash to NH4OH
28% (1)
Eyes3
Recognized by sight

Please login to propose your own names and vote on existing names.

Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

Add Comment
Removed Boletus L.
By: L G Price (LG_Price)
2015-08-29 23:16:19 CDT (-0400)

Ok. I see the issue. I guess it could be
Butyriboletus
or
Pulveroboletus
or
Xerocomellus
or
??

I try to put observations at the most specific level possible that basically makes sense, the ID can always be bounced up by others as you did. One issue on MO is to get people to look at observations. The more general the identification, the less likely it will be looked at.

At any rate, thanks for taking a look. The key that I was using took me to Boletus pseudosensibilis, but I could tell that it was not a good match. Thanks for confirming that.

Boletus L.
By: I. G. Safonov (IGSafonov)
2015-08-29 22:42:01 CDT (-0400)

… is not a good name for boletes anymore. It’s actually a misnomer ever since the genus Boletus (i.e., Boletus sensu stricto) became reserved only for the porcini types following Dentinger’s publication in 2012. IMO, the old Boletus L. should be removed from the MO registry and replaced with something like Boletus sensu lato. I prefer to call all the unknown non-porcini taxa Boletaceae. This name is broad, but accurate at that uncertainty level. Of course, Gyroporus and Suillus belong to their respective families.

Created: 2015-08-28 23:17:00 CDT (-0400)
Last modified: 2015-08-30 03:07:02 CDT (-0400)
Viewed: 102 times, last viewed: 2016-10-22 04:47:43 CDT (-0400)
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