On well rotted, wet log. Photo 4 may be a mixed collection. Most fb have dark tip, white below. In some, the color pattern is reversed with a top pale yellow-whte and dark below

Species Lists


June 20: same spot, yellow coloration may be colonization my myxomyceticolous fungus
June 14
June 14
June 14
June 15, the following morning
June 15, the following morning
June 18am, no change
June 20: same spot
June 20: same spot

Proposed Names

46% (2)
Used references: A Handbook of Slime Molds, Stephenson, p. 137 looks vaguely like Metatrichia.
13% (3)
Recognized by sight
48% (4)
Recognized by sight: Looks like Arcyria cinerea that aborted in the middle of forming. I have seen evidence of myxogastria aborting or having stunted growth if there habitat is altered while they are forming. Example: It got too hot and dry while these Arcyria obvelata were forming.

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= Observer’s choice
= Current consensus


Add Comment
Interesting suggestion
By: Martin Livezey (MLivezey)
2014-06-18 18:28:11 CDT (-0400)

And the photo on mycoweb looks convincingly similar. There was A. cinerea on the same log, also another species which I will post. I have several observations of A. cinerea and A. oblevata and I think I know what they are…, I have never confirmed them with microscopy, and that is obviously a good step to take. This region is has received 8" more rain than is usual for this time of year. Also the log was in a very sheltered location with shrubs and trees overhead and was very near low ground that was often flooded during our many rains. So I am not sure that drying was a source of deformation.

This was on the same log at the same time:
This was nearby a few days earlier:

Arcyria cinerea
By: Elsa (pinknailsgirl)
2014-06-18 16:52:01 CDT (-0400)
By: Martin Livezey (MLivezey)
2014-06-18 06:57:23 CDT (-0400)

4 days after discovery there is little change in the fb. What do you think now?

Just created …
By: zaca
2014-06-17 12:25:04 CDT (-0400)

observation 167613 with specimens that, at the time, I identified as Diachea leucopodia and the reason why I proposed the same name for this observation.

Diachea leucopodia
By: Martin Livezey (MLivezey)
2014-06-16 21:24:18 CDT (-0400)

would be fantastic as I have never seen it, but I don’t think so. Maybe it will mature and surprise me; rain is predicted tonight, we may never know!

Thanks zaca and Elsa
By: Martin Livezey (MLivezey)
2014-06-16 21:09:59 CDT (-0400)

Elsa – It is no wonder mycologists study slime molds. In some cases they are more plentiful than mushrooms, and then – yes – they sometimes look like mushrooms. You need a reasonable closeup lens and some long exposures! I see you have already posted this species.

By: Danny Newman (myxomop)
2014-06-16 20:43:39 CDT (-0400)

notice that none of the would-be “caps” are open, and how the stipe is contiguous with the bottom/start of the sporangium.

Very cool indeed Martin
By: Elsa (pinknailsgirl)
2014-06-16 20:32:34 CDT (-0400)

Are you sure they are not mushrooms? They really look like some.

cool find
By: Danny Newman (myxomop)
2014-06-16 20:20:44 CDT (-0400)

no books on hand atm, but it looks somewhat like Diachea.