When: 2014-04-25

Collection location: Adams Co., Pennsylvania, USA [Click for map]

Who: Dave W (Dave W)

No specimen available


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= Observer’s choice
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I think the name “micaceus” probably applies here.
By: Dave W (Dave W)
2014-04-27 23:21:53 CDT (-0400)

But since I don’t presently feel confident distinguishing between mitriform and submitriform, the prudent thing for me to do is to make more collections of this type and examine more closely.

We’ll probably end up with…
By: Byrain
2014-04-27 12:12:37 CDT (-0400)

~50 different C. micaceus names like that.

Coprinellus micaceus sensu stricto
By: Alan Rockefeller (Alan Rockefeller)
2014-04-27 06:22:41 CDT (-0400)

Since the spores are mitriform, I think it is safe to call this Coprinellus micaceus sensu stricto auct. Pennsylvania.

Just looked at spores.
By: Dave W (Dave W)
2014-04-26 20:58:25 CDT (-0400)

Many of the spores show the mitriform shape. The other shapes may be the result of profile.

Unfortunately, the mushrooms are currently underneath today’s compost. And the resolution in the photos is perhaps not sufficient to observe whether or not the stipes are pruinose. But even with access to more info, it does appear that “sect. Micacei” best correlates with a high level of confidence for naming this type of NA collection… with maybe a nod to this or that species name when more traits are observed.

Thanks for the input, Byrain.

I think…
By: Byrain
2014-04-26 19:47:51 CDT (-0400)

No one really knows which if any of the North American collections is the real C. micaceus, that’s an European name and even there its difficult to identify them from just photos. My limited experience with the sect. Micacei key didn’t lead anywhere and I have read comments from European mycologists who study coprinoid fungi that wonder if we even have the same species. It would be really cool if someone did an intensive study on these, there is probably more than one of these in North America & here is the European key, maybe you will have more luck with it…


Okay Byrain.
By: Dave W (Dave W)
2014-04-26 19:41:19 CDT (-0400)

C. micaceus is reported as a species complex.

Do you think the species name micaceus currently applies to any such collection?