Observation 208130: Boletus pallidus Frost

When: 2015-06-28

Collection location: West St. Louis Co., Missouri, USA [Click for map]

Who: Judi T. (AvidAmateur)

No specimen available

One single, senior-citizen specimen (slightly beaten up) in ground under mature live Oak tree. Dry, suede-textured, minutely cracked cap measuring 9.2 cm in diameter and a spongy 3 cm. thick. Stem = 8 cm. tall and 2.5 cm. wide. Portions of a previously yellow pore surface can be seen, but most had already turned an olive-brown with age. Large pores are 1.2 cm. deep; 1 pore per mm. Obtained olive-brown spore print.


Copyright © 2015 Judi Thomas
Copyright © 2015 Judi Thomas
Copyright © 2015 Judi Thomas
Copyright © 2015 Judi Thomas
Apex of stem.

Proposed Names

-11% (2)
Used references: Kuo’s “Mushrooms of the Midwest” and MO observations
28% (1)
Recognized by sight
55% (1)
Used references: see discussion in obs 244148

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

Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
Thanks again, IG. The pores bruised brown easily and quickly.
By: Judi T. (AvidAmateur)
2015-07-03 22:05:51 CDT (-0400)

I didn’t see any blue-green first. Of course, the pores of the older specimen in this OB gradually turned a dark, “grundgy” color … just with age, I think. Still hoping a Bolete expert will join MO. Think we need a Russula expert too:=)So many of those mushroom ID’s never get to species.

By: I. G. Safonov (IGSafonov)
2015-07-03 14:30:36 CDT (-0400)

Yes, I did see obs 208567 – thank you for posting. Alas, I still cannot make out the ID on this bolete…
The stipe is more glabrous in the younger specimen, but it still has some ribbed structures on the upper portion of the stipe. Overall its appearance is a mix of different elements from B. pallidus and X. subtomentosus. Did the pores bruise green-blue before turning brown?
We need more input from other MO boletolgists. :-)

IG, this ugly duckling of a mushroom so intrigued me
By: Judi T. (AvidAmateur)
2015-07-03 14:12:18 CDT (-0400)

that I returned to see if I could collect a fresher specimen. I got lucky, so posted another OB (# 208567) in hopes that this younger specimen might make identification easier. “He” may not be beautiful, but he still deserves a name:=)

By: I. G. Safonov (IGSafonov)
2015-06-29 21:38:10 CDT (-0400)

I guess my memory works in mysterious ways. ;-) Not only I made the connection, but I recalled the year and the park I brought that bolete from, so I could search for it quicker on MO. I reckon this thing made an impression on me despite being so unattractive; I must have spent quite a bit of time working on it, but never been able to identify it…
Thank you for your kind words. One of the things I like about MO is that it’s both a learning and teaching experience.

IG, I am very impressed with your memory.
By: Judi T. (AvidAmateur)
2015-06-29 20:25:50 CDT (-0400)

How on Earth did you recall your old observation from 4 years ago and its similarities with the one I just posted??? Interestingly, your observation was posted at nearly the same time of year. Perhaps, with the notation you added to my ob someone who has joined MO since 2011 will take another look and be able to provide a definitive species … for both of us. Thanks for looking at my observations and for sharing your expertise. It’s always much appreciated.

By: I. G. Safonov (IGSafonov)
2015-06-29 19:21:49 CDT (-0400)

Your bolete is not B.variipes, but it’s very similar to the cryptic species I found in NJ a few years ago. See: http://mushroomobserver.org/74595?q=2bPPQ

Created: 2015-06-29 15:28:29 CDT (-0400)
Last modified: 2017-01-05 15:49:48 CST (-0500)
Viewed: 103 times, last viewed: 2018-03-02 00:57:04 CST (-0500)
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