Notes: Here comes a mysterious bolete that roughly resembles a Xanthoconium sp. It was growing alone under hardwood trees, possibly oak. Standing at ~2.5" tall, it sports the most unusual reticulation I have seen in boletes, covering the entire length of the stipe. Another distinctive feature that might shed some light on the identity is a chemical reaction with KOH (pilepellis rapidly turns orange); the context is negative with KOH. X. affine var. reticulatum (A.H. Smith) Wolfe is a possibility, though I have never collected it. Also, MushroomExpert.com briefly mentions an elusive reticulated subtype of X. purpureum.
[admin – Sat Aug 14 01:59:21 +0000 2010]: Changed location name from ‘Chester, Morris Co., New Jersey, USA’ to ‘Chester, New Jersey, USA’
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I didn’t read the affine section. So maybe what you have here is an uncommon variety of X. purpureum?
at the very bottom of the X. affine page: "Several varieties of Xanthoconium affine have been described. Xanthoconium affine var. maculosus is more or less identical but has a cap that is spotted with whitish or pale yellow spots—while Xanthoconium affine var. reticulatum has a conspicuously reticulate stem. However, I have collected similar reticulate and spotted “varieties” of Xanthoconium purpureum—supporting the idea that one variable species might account for Xanthoconium purpureum and all the varieties of Xanthoconium affine."
about the reticulate version of X. purpureum. Kuo mentions that an amonia induced green flash on the cap is a key to IDing purpureum.
Created: 2009-09-12 20:59:15 PDT (-0700)
Last modified: 2010-08-30 08:25:28 PDT (-0700)
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