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Two Boletes


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The first pictured (1-4) were found in an area that was mostly hemlock trees, and some smaller deciduous trees I didn't recognize. No bruising. My un-confident guess is Boletus affinis...

The second type were found close by, the nearest trees of any size were oak. No bruising on these either. I believe they are a different mushroom than the first because of their stems and lighter pore color. My guess here is Boletus separans, which seems very unlikely because it is listed as rare and more of a fall mushroom... so any suggestions welcome.

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Boletus separans (briefly called Xanthoconium separans) is not a rare mushroom here in PA. Neither is it late-occurring. I have collected over 10 pounds in one session multiple times, and it generally starts up around the end of June. But things seem to getting started early this year... probably in relation to the very warm May, and now the frequent rainfall.

But... I don't think that second mushroom is B. separans. I think the second one, with the reticulations on the stipe apex, is a variety of Xanthoconium affine (formerly Boletus affine). This variety is called Xanthoconium affine var. reticulatum. Nice find, and well photographed! The reticulations are apparent.

First bolete, like you proposed, looks to me to be the regular (non-reticulate) X. affine.

B. separans generally has a color that adds a bit of pink/lavender/purplish, and is larger than affine. Amount of reticulation on the stalk is highly variable with B. separans.

Other possibilities for the second observation are Boletus variipes and B. reticulatus. Pore/tube color on mature specimens would help a lot here. Xanthoconium species have pores/tubes that do not show any greenish tint at maturity.

Did you taste the cap flesh on these?

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Thanks, Dave W. I tasted them both and they are mild with a very slight sourness. The tubes didn't show any green color when cut.

It's nice to get information on a more local level-- the ID guide I use seems to have different seasons listed for some mushrooms than when I typically find them, even though it's for this area.

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Ladyflyfish, how about B. satanas, B. sensibilis, B. huronensis? I thought they are poisonous but don't taste bitter.

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Would the first 3 pictures be an example of B. separans? Found this one today. It smells a little sweet. I might say this about a lot of mushrooms, but this is one of the most beautiful I've seen.

And the other photos, another one I can't find a suitable ID for.

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