Observation 153518: Clitocybe (Fr.) Staude

When: 2013-11-16

Collection location: Sweet Valley, Pennsylvania, USA [Click for map]

Who: Dave W (Dave W)

No specimen available

Under Virginia Pine.



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Good point
By: Byrain
2013-11-24 20:58:52 CST (-0500)

Maybe they were both brown when fresher, all these Clitocybe look so much alike, macro and microscopically…

Edit: Or maybe Walt’s observation is environmental and your’s is hygrophanous?

Byrain, if you zoom in…
By: Dave W (Dave W)
2013-11-24 15:36:51 CST (-0500)

on the photos in Walt’s collection (153532), thin brown marginal zones are seen on the caps. Although the ones seen here in my obs show a significantly wider brown marginal zone, my interpretation is that this represents a similarity.

My specimens have retained the dark margins now that they are dehydrated.

At this time of year, while the ground is still warm enough for terrestrial mushrooms to fruit but nighttime temps often drop below freezing, weather-induced macro-variations are common. I suspect that the appearance of striations on the cap margins seen in this obs is the result of the mushrooms freezing along the margins while in a brown/moist state, with the result being that the brown color and marginal lines were locked in by the freezing. The lines do not extend into the white parts of the caps.

Probably not the same
By: Byrain
2013-11-24 11:05:36 CST (-0500)

obs 153532 seems to show a white species, this observation shows a brown species that is hygrophanous.

Probably the same
By: walt sturgeon (Mycowalt)
2013-11-24 10:42:32 CST (-0500)

But the marginal striations are interesting. Maybe a result of weather conditions?

Walt, I’ll preserve a collection of these…
By: Dave W (Dave W)
2013-11-23 23:06:56 CST (-0500)

and eventually send it off to NJMA. Do you think this obs shows the same type as…? http://mushroomobserver.org/153532?q=1e2gm

By: walt sturgeon (Mycowalt)
2013-11-23 15:57:02 CST (-0500)

This is a common late season species under conifers. It would be nice to get a name.

Created: 2013-11-23 15:53:02 CST (-0500)
Last modified: 2013-11-23 15:53:06 CST (-0500)
Viewed: 42 times, last viewed: 2017-06-17 16:42:20 CDT (-0400)
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