Observation 11955: Chlorophyllum brunneum (Farl. & Burt) Vellinga
When: 2008-10-02
No herbarium specimen

Notes: Fruiting in the duff of a redwood along a back alley. Rather old by the time I found it, so no spore print. It does appear to show signs of the red/orange staining of the stipe that is characteristic of this mushroom.
11/2/08: I’ve added a photo and a drawing of a second fruiting which I caught, this time before the maggots did! I’m still not clear on how to differentiate between C. rachodes and C. brunneum but I just know someone’s gonna tell me if I’m wrong! The pileus was 5.3cm across, stipe 1.2cm at apex and the whole thing was 14.4cm tall.

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Eye3 = Observer’s choice
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By: Erin Page Blanchard (CureCat)
2008-11-13 04:03:15 EST (-0500)

Here is a link to Else’s paper which helps to differentiate C. brunneum from C. rachodes:

http://plantbio.berkeley.edu/~bruns/ev/chlorophyllum.pdf

Another distinct difference noted in the article is the annulus- the annnlus of C. brunneum is simple or unornamented, whereas C. rachodes has a “double veil” so to speak.

brunneum has an abruptly bulbous base, nicely shown in your photo.
By: Debbie Viess (amanitarita)
2008-11-12 10:39:21 EST (-0500)
Can’t ID to species
By: Debbie Drechsler (debdrex)
2008-10-10 22:21:04 EDT (-0400)

Thanks for the info, Deb. This specimen was OLD when found. The stem pulled apart from the base when I dug it up and it was too dry to do any staining at all. So, I’m going to play it safe.

probably the more locally common Chlorophyllum brunneum instead…
By: Debbie Viess (amanitarita)
2008-10-04 23:05:04 EDT (-0400)

need to look at the stipe base.

check out Else Vellinga’s recent article on telling them apart, as well as the history of their names, on the BAMS list:
http://www.bayareamushrooms.org/mushroommonth/index.html

Created: 2008-10-04 20:41:33 EDT (-0400)
Last modified: 2008-10-04 20:41:33 EDT (-0400)
Viewed: 47 times, last viewed: 2016-06-13 00:19:04 EDT (-0400)