Observation 60621: Hypholoma marginatum (Pers.) J. Schröt.

When: 2010-12-11

Collection location: Arcata Community Forest, Arcata, California, USA [Click for map]

Who: Chris Berry (avalanch)

Specimen available

Found growing on wood chips adjacent to maintained park trail in fir/redwood forest. Gregarious.

[admin – Tue Feb 08 12:34:41 +0000 2011]: Changed location name from ‘Arcata Forest, Humboldt co. California, USA’ to ‘Arcata Forest, Humboldt Co., California, USA

Species Lists


Copyright © 2010 Chris
Copyright © 2010 Chris
Copyright © 2010 Chris
Copyright © 2010 Chris
Copyright © 2010 Chris
Copyright © 2010 Chris
Copyright © 2010 Chris
Copyright © 2010 Peter G Werner

Proposed Names

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
By: Chris Berry (avalanch)
2010-12-31 05:55:06 WIB (+0700)

Thank you for the Flickr link. The microscopic photos are very interesting.

More pics
By: Peter G Werner (pgwerner)
2010-12-27 12:41:01 WIB (+0700)

Here are my pics from the collection you sent, which if I’m not mistaken, is from this same observation:


Feel free to add them here, but just put my name in the “Copyright Holder” space.

Yep, looks like Hypholoma marginatum
By: Peter G Werner (pgwerner)
2010-12-17 12:40:40 WIB (+0700)

The spores are the right size, the chrysoplurocystidia are abundant, and the cheilocystidia are about the right fusoid or fusoid-ventricose shape, not to mention macro characteristics and habitat. Also, the chrysocystidia fluoresce really brightly, especially in blue light. (I’ll get some micro images tomorrow and make them available shortly.)

I keyed it against Smith’s monograph, as well as Watling & Gregory, plus Bryan Little’s unpublished California monograph, and it keys out in all of these.

Thanks for sending these. I rarely see this species in the SF Bay Area (though it turns up here on occasion), so it was nice to familiarize myself with it.

Could you send these?
By: Peter G Werner (pgwerner)
2010-12-13 10:16:38 WIB (+0700)

Could you send a sample of these? I’d like to scope them, and maybe get a sequence. If you could email me, that would be great. My email is pgwerner (at) sonic(dot)net.

By: Andrew Heath (Quercus)
2010-12-13 03:45:50 WIB (+0700)

And for good reason i guess.. they arent psilocybe

By: Andrew Heath (Quercus)
2010-12-12 14:15:27 WIB (+0700)

Great find! I can imagine plenty of eyes not recognizing those as psilocybe at a glance…

Created: 2010-12-12 02:52:30 WIB (+0700)
Last modified: 2011-02-08 19:34:41 WIB (+0700)
Viewed: 206 times, last viewed: 2018-01-08 16:38:53 WIB (+0700)
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