Panaeolus

BROCSMAN · #1 (**permalink**) 12-11-2010, 05:12 PM

I'm trying to ID a Panaeolus I found today. No veil (unless it's been affected by rain), gill edge pale, (sorry - this is the best photo of the fb). Hygrophanous, but a uniform colour change.

I was tending towards accuminatus, but then I found this, which looks like what FN calls sulphidia, which seems to point to fimicola. I'm confused. Help please.

SheffieldLass · #2 (**permalink**) 13-11-2010, 06:00 PM

It looks like a sulphidia to me. Which means it is one of two. Did you get an approximate size of the spores? The spores shown in yours look quite broad for the length, which just makes me hesitate slightly for P fimicola, but if the length is 10-15um, rather than 15-20um, then it will be P fimicola. Some of P fimicola spores can be as broad as yours, but when you see a lot of its spores together the overall impression is of a more slender spore. Also you can usually find a number with eccentric pores. Yours all look central, but again there aren't many to look at, so that doesn't rule it out.

Melanie

BROCSMAN · #3 (**permalink**) 13-11-2010, 07:52 PM

Thanks for the reply.

It's a bit difficult (as usual). The spores were about 15 microns, and I thought the germ pore was central, but I WAS thinking fimicola. Are you looking at FN? The alternative seems to be antillarum (never heard of it before), but my specimens were definitely hygrophanous, so fimicola seems right.

Or are you thinking of something else entirely?

SheffieldLass · #4 (**permalink**) 13-11-2010, 09:09 PM

Quote:

Originally Posted by BROCSMAN

Thanks for the reply.

It's a bit difficult (as usual). The spores were about 15 microns, and I thought the germ pore was central, but I WAS thinking fimicola. Are you looking at FN? The alternative seems to be antillarum (never heard of it before), but my specimens were definitely hygrophanous, so fimicola seems right.

Or are you thinking of something else entirely?

Well it seems that P antillarum isn't found here anyway, it is a tropical one.

So easy to rule that out.

With what appears to be a sulphidium that would make it P fimicola. As a check I ran through the spore sizes in FN, and even there, if you ignored sulphidia, really only P fimicola, P acuminatus and P cinctulus would fit, but P cinctulus is generally much stockier, so can be ruled out. So I think you are quite safe with P fimicola.

Melanie