Observation 33430: Boletaceae Chevall.
When: 2008-07-20
No herbarium specimen

Notes: Pores stain dark blue which then fades to rusty brown. In an open area of an oak woods.

Proposed Names

56% (1)
Eyes3
Recognized by sight

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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Thanks I.G., for the input.
By: Dave W (Dave W)
2012-07-22 23:07:33 CDT (-0400)

For habitat, the Big Bolete Book says about B. oliveisporus “…under oak and pine”, which logically interpreted, means that both tree type shound be present. I know the spot where I found these… no pine species.

Could this be something other than the two names under consideration? As has come up in the past, these red – capped boletes can be pretty confusing.

Oh, and I should mention… a few years back I registered for MO under two different names (home and office computers). The double identity thing has since been corrected. Just in case anyone wonders, I do not vote on obses posted by Dave in NE PA… unless I wish to update my original proposal.

B. oliveisporus,
By: I. G. Safonov (IGSafonov)
2012-07-22 22:21:12 CDT (-0400)

which to my knowledge is strictly associated with pine species, readily and intensely stains blue all over (even the pileus). The stipe colors of Dave’s mushroom are red and yellow, very much like those of B. bicolor group and not a mixture of yellow, red and brown. I have collected what I thought was B. oliveisporus in the NJ Pine Barrens under pitch pines in August and early September — see my observations for comparison.

The bruising on the pores…
By: Dave W (Dave W)
2012-07-21 16:46:59 CDT (-0400)

blue to brown, is included within the B/R/B description of B. pulverulentus.

Also, B/R/B lists B. oliveisporus as having northern distribution up to New Jersey, which would put the collection site for this obs on the fringe of the species range.

I see that one trait which would appear to separate the two spieces is NH4OH on the cap. So I guess I’d better have some of this stuff on hand for the next time this type shows up around here. Does anyone know a good source for getting chemicals? In the past, I had got some stuff at the NEMF foray.

Thanks for the proposal, Noah. I had not considered oliveisporus. For me it’s a new name to keep in mind. Hopefully, I’ll find these again.

Created: 2010-02-10 23:10:15 CST (-0500)
Last modified: 2016-04-22 17:06:26 CDT (-0400)
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