Michaelrhizal Posted July 16, 2019 Report Share Posted July 16, 2019 Found this in Western NC today in a hardwood forest. The cap is light brown and about 3.5 inches wide. The pores are very small and white. They show very little signs of staining (just a faint yellow). The stem is tan and about 4.5 long. It appears to be a Chestnut Bolete? Any help is appreciated. Quote Link to comment Share on other sites More sharing options...
bobby b Posted July 17, 2019 Report Share Posted July 17, 2019 Gyroporus castaneus is often referred to as the chestnut bolete. One of ID characteristics is a hollow chambered stem. The cap color doesn't seem right. I'm hoping to find it this summer. Try to get a spore print from it. It has a yellow spore print. Quote Link to comment Share on other sites More sharing options...
CamilleR Posted July 18, 2019 Report Share Posted July 18, 2019 Inside the stem doesn't look pithy to me. Did you taste to see if it's bitter? If not, boletus nobilis is a guess. Quote Link to comment Share on other sites More sharing options...
Dave W Posted July 18, 2019 Report Share Posted July 18, 2019 This is likely either a species of Tylopilus of Xanthoconium affine. There are several brown-capped species of Tylopilus, most of which bruise brown on the pore surface. Pore surface sen here appears to have a slight yellow tint, but this may be the result of the ambient lighting. (Were the photos taken indoors?) Yellow tint on pores suggests X. affine, but the overall look seems more like Tylopilus to me. Nibble/taste/spit a small amount (safe for boletes but have water handy to rinse). Not Gyroporus castaneus. The flesh internal to the stem is seen to be slightly stringy, and has been mentioned the inside of the stem is not chambered/pithy/hollow. A good test for genus Gyroporus is to snap the stem in half. The cells that make up the Gyroporus stem are arranged in circular fashion which causes the stem to snap apart cleanly rather than tear apart or bend. Quote Link to comment Share on other sites More sharing options...
Michaelrhizal Posted July 18, 2019 Author Report Share Posted July 18, 2019 You all are right, the inside of the stem definitely isn't pithy. So that would rule out Gyroporus Castaneus. I tasted it and it was not bitter at all. The photos were taken outside so the color is pretty true to the way they appear. The pore surface does actually have a yellow tint. What would a bitter flavor or a lack there of suggest? Thanks for your time. Quote Link to comment Share on other sites More sharing options...
Dave W Posted July 19, 2019 Report Share Posted July 19, 2019 Some of the Tylopilus species are bitter, some mild. I think Boletus nobilis may also be considered here. Sometimes this species has reticulations on the stalk, sometimes not. Quote Link to comment Share on other sites More sharing options...
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