Collection location: Brendan T. Byrne State Forest, Burlington Co., New Jersey, USA [Click for map]
A single specimen growing in a tight space formed by 5 birch trees and surrounded by mature pines.
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Yep, Observation 208605 does look dead on with yours regarding color. I’ll keep my eye out for some older specimens. I have been lucky enough to find mostly prime condition examples.
Sometimes I find them like this, especially if the stipe surface is very dry. M. Kuo says this about the stipe colors:“…yellow at the apex and brown at the base, often with a pinkish red zone in between; appearing finely punctate; becoming brown overall from the base up…”. This is in line with the appearance of the fb in this observation.
I don’t know if there is a morphological difference between textbook collections from the south and those from the extreme northern distribution range (NJ), but nrLSU of obs 208605 is identical to that of oliveisporus from Texas (#KF030254).
I am aware of the darkening when handled or cut… it very quickly turns that drab brownish color. But your pictures are in situ and I was wondering if this is typical of older northern collections. Southern collections look much different, even in age.
and drab brown colors are typical of this species as it gets old. Fresh specimens also discolor quickly after heavy handling and/or letting them mingle in the basket with other mushrooms (bluing changing over to brown).
Igor have you found additional collection showing this dark coloration?
Created: 2011-08-08 01:12:20 CDT (-0400)
Last modified: 2017-10-28 00:59:31 CDT (-0400)
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