Observation 21729: Panaeolus olivaceus F.H. Møller
When: 2009-06-05
Collection location: Finland [Click for map]
Who: Mikael
Herbarium specimen reported


Here is a couple of more pictures of these mushrooms.
Here is a couple of more pictures of these mushrooms.
Here is a couple of more pictures of these mushrooms.
Here is a couple of more pictures of these mushrooms.

Proposed Names

66% (6)
Eye3 Eyes3
Based on microscopic features: Slightly roughened spores.

Please login to propose your own names and vote on existing names.

Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
Not likely P. rubricaulis
By: Workman
2009-08-19 10:26:31 CDT (-0500)

According to Gerhardt (1996), Panaeolus rubricaulis is a rare Asian, apparently warm-loving species known from India, Sri Lanka, New Guinea and Vietnam. The spores are smooth and similar in appearance to those of Panaeolus cyanescens. It also has obvious pleurocystidia of the chrysocystidia type. Considering these features, Panaeolus rubricaulis is a very poor match for Mikael’s temperate collection.

re ganoderma
By: Dan Molter (shroomydan)
2009-08-15 10:02:29 CDT (-0500)

If you disagree with the name, then add the name you think is a better match, and people can vote on it. I think Workman has made a good case for Panaeolus olivaceus.

Response to Ganoderma
By: Workman
2009-08-11 20:04:41 CDT (-0500)

The spores are finely roughened and not internally granulated. You can tell the difference by focusing on the outer edge of the spore and looking for an irregular margin. It is subtle and doesn’t always photograph well. Based on that feature alone there aren’t many choices when using Gerhardt as a reference. It is likely that Panaeolus olivaceus is a species complex but we can only work with the information we have. Personal communications with Ewald Gerhardt have supported my observations.

By: Alan Rockefeller (Alan Rockefeller)
2009-07-14 23:40:15 CDT (-0500)

All links are ok, also Workman doesn’t mind if you add the microscopy composites to the observation. This does appear to be Panaeolus olivaceus according to Gerhardt 1996, but there are probably several species masquerading under that name, some active and others not. This one does have somewhat of an olive colored cap, which I notice in some observations but not all.

Panaeolus olivaceus
By: Mikael
2009-07-14 22:52:52 CDT (-0500)

Alan see here. I hope I it all right to put this link in here: http://www.sporeworksgallery.com/...
I will take it off if it is not allright(?)

By: Alan Rockefeller (Alan Rockefeller)
2009-07-14 17:32:02 CDT (-0500)

Given that you ate a bunch of these and they didn’t appear to contain psilocybin, and that they look quite different than other P. olivaceus collections, I think you may have something a bit more interesting here, perhaps undescribed. Did Workman make a microscopy composite for this collection?

Panaeolus olivaceus
By: Mikael
2009-07-14 04:12:25 CDT (-0500)

No bluing was noticed at these hundreds of Panaeolus olivaceus specimens.

Any bluing?
By: Timoteo (Timoteo)
2009-07-13 08:31:34 CDT (-0500)

I see these in great numbers in the spring/early summer months.

The ones I see have been confirmed as P. olivaceus by microscopy, but the specimens I sent away blued at the base of the stipe.

Just curious if you noted any bluing.

Beautiful specimens.

P. olivaceus
By: Sovereign
2009-06-28 23:49:43 CDT (-0500)

These are Panaeolus olivaceus, not cinctulus.

By: Timoteo (Timoteo)
2009-06-05 19:33:09 CDT (-0500)

whats up buddy, I knew I saw these on another site…:wink:

Created: 2009-06-05 16:52:12 CDT (-0500)
Last modified: 2010-04-14 01:59:02 CDT (-0500)
Viewed: 1201 times, last viewed: 2016-10-23 19:37:31 CDT (-0500)
Show Log