Notes: Boletus sp., Section Subtomentosi, Subsection Fraterni in Smith’s classification. Persistently pink caps, strongly blueing, yellow pores at first. A smaller of the caps that I brought home was 5.5 × 4.5 cm, others bigger, stems 5.5 x.7, reddish bruising blueish flesh yellow. NaOH on cap yellow, on flesh orangey, FeCl3 on cap greeen, on flesh green. NH3 on cap yellowish slowly. Spores brown in mass, ~13 × 3.6 microns. There were many of these. I would appreciate a name for these.
[admin – Sat Aug 14 02:01:34 +0000 2010]: Changed location name from ‘Jamieson Park, Poynette, Columbia Co. WI, USA’ to ‘Jamieson Park, Poynette, Wisconsin, USA’
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|I’d Call It That||3.0||4.36||1||(sfnelsen)|
sum(score * weight) /
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Macroscopically I would call it B. fraternus. But I would not wager nuch on this ID!
magazine? is it online?
This is great! Thank you once again.
So, are the colour and/or oxidation reaction differences between variegatic acid, Xerocomic acid, and Isoxerocomic acid? It was not clear to me in the image.
There was enough interest in the stuff that makes Gyroporus cyanescens blue (which is different from the stuff that blues Boletus and Suillus) that I added a picture of its chemical structure too. This information will appear, with references, in the Summer eddition of Fungi, the Magazine.
Created: 2010-06-28 11:20:28 PDT (-0700)
Last modified: 2010-08-26 18:19:11 PDT (-0700)
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