Observation 49197: Mycena haematopus (Pers.) P. Kumm.

Elevation: 4000’ Collector: Nhu Nguyen, Identifier: Else Vellinga, Data entered by Sara Zlotnik

[admin – Sat Aug 14 02:19:09 +0000 2010]: Changed location name from ‘Yosemite National Park, Wawona, along trail to Chinualna Falls’ to ‘Trail to Chinualna Falls, Wawona, Yosemite National Park, California, USA

Proposed Names

76% (6)
Recognized by sight: Purple tones, edge of cap forming pleated skirt beyond the gill margin.

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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nobody checked for latex?
By: Debbie Viess (amanitarita)
2010-07-27 11:24:24 CDT (-0500)

sure seems like they are young and moist enough to bleed, if indeed mycenas…

nice catch, Doug. The cap edge is quite diagnostic, even w/out checking for latex…

And after saying that…
By: Douglas Smith (douglas)
2010-07-27 05:45:19 CDT (-0500)

Even with your fancy new genus name there (for people that are up to date with their Mycologia journal), I don’t think the id is right. The cap is too radial fibrous and with purple tones. The photos I see of C. acervatus (there, I used the new name!), when young the caps are light tan and hygrophanous. But mainly the margin of the cap shows that skirted edge that is seen in M. haematopus, that I didn’t see in the C. acervatus obs. M. haematopus also grows in clusters on wood.

Um, where did you get this name?
By: Douglas Smith (douglas)
2010-07-27 04:24:15 CDT (-0500)

Looking at the Index Fungorum I don’t see a listing for Connopus acervatus.

Oh, looking at Google I see the paper:

“A new genus to accommodate Gymnopus acervatus (Agaricales)”, Karen W Hughes, David A Mather, Ronald H. Petersen, Mycologia, May 2010.

The abstract states:

“nrDNA sequences show Agaricus (Gymnopus) acervatus as unique within the Gymnopus/Rhodocollybia complex. These phylogenies imply that a separate generic unit is necessary, and Connopus is proposed.”

Oooh, cutting edge science…

The synonyms need to get made here.

Created: 2010-07-26 18:52:50 CDT (-0500)
Last modified: 2011-04-25 13:02:45 CDT (-0500)
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