Observation 27740: Galerina autumnalis (Peck) A.H. Sm. & Singer
When: 2009-11-03
No herbarium specimen

Images

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These specimens were collected from the same log a few days after the original observation.
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These specimens were collected from the same log a few days after the original observation. Microscopic photos are from the large mushroom showing its gills in this photo.
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Dry spores 400x
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Dry spores 400x
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Wet spores 1000x
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Cystidium 400x
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Cystidia 400×.
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Some spores are more red than others.

Proposed Names

29% (1)
Eye3
Used references: suggested by Douglas

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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Misc
By: Paul Derbyshire (Twizzler)
2009-11-07 23:07:11 PST (-0800)

Did you do a Meixner test on these to see if they all contain amatoxins?

Regardless, it’s looking likely that these are just morphological variations within the one species, perhaps induced by environmental factors; or that they are genetically variant groups within a single species (like the minor physical differences among humans from different places that unfortunately some people like to fight over, perhaps the mushrooms from different logs can develop minor divergences).

Microscopic camparison
By: Dan Molter (shroomydan)
2009-11-07 21:51:06 PST (-0800)

Spores and cystidia of these umbonate deadly galerinas are very similar to those from an umbilicate colony found across the lake in the same park on the same day. The log where these mushrooms were growing regularly produces pointy-capped deadly galerinas.

compare here:
http://www.mushroomobserver.org/27808

Two differences I noted were spore color and cystidia frequency. There are quite a few more cystidia per gill edge on this collection than on the other, and this collection has some red spores. Most spores are orangish-brown, but some appear to have distinct red pigmentation.

Smith’s Galerina monograph
By: Patrick Harvey (pg_harvey)
2009-11-04 08:40:45 PST (-0800)

If you want to go nuts looking for it, you can find Alexander Smith’s monograph
on Galerina online here:

http://quod.lib.umich.edu/...

Good luck!

Patrick

umbonate galerina autumnalis
By: Dan Molter (shroomydan)
2009-11-03 17:07:50 PST (-0800)

Hey Douglas,
Thank you for the alternate name. I’ll throw it up there as a possibility.
I think I sent you some of these last year. The mushrooms in this ob were growing in the same area where other umbonate forms have been collected. I think they might even be from the same log as those shown here:

http://www.mushroomobserver.org/20834

and here:

http://www.mushroomobserver.org/13743

Normal looking G. autumnalis growing on the same log make me suspect these are just a form of G. autumnalis, which is very common here. Next time I’m out that way I’ll collect a few of the pointy ones and few normal ones for comparison under the scope. I’m betting they will turn out the same.

More of that funny one…
By: Douglas Smith (douglas)
2009-11-03 16:49:22 PST (-0800)

These are more of those funny umbonate, conical Galerina. I think that there is a better name for these, perhaps. G. triscopa is supposed to be on wood, and umbonate to conical. But I wouldn’t really suggest going with that, until there is some specific feature to look for here, beyond the umbonate cap.

Created: 2009-11-03 16:16:21 PST (-0800)
Last modified: 2009-11-03 16:16:21 PST (-0800)
Viewed: 261 times, last viewed: 2016-11-17 11:50:58 PST (-0800)
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