Observation 4490: Mycetozoa de Bary ex Rostaf. (Site ID) (Eumycetozoa)

When: 2007-10-21

Collection location: Los Trancos Preserve, Palo Alto, California, USA [Click for map]

Who: Douglas Smith (douglas)

No specimen available

Not a fungus here, and I’m not a big fan of looking for slimy molds, although they are pretty cool things, very strange life forms.

Anyway, I just had to include these here, hadn’t seen them before. The mass of small white “eggs” on cords is pretty neat. On a very rotten, wet log, with the sparse grouping on the side, and the dense grouping on the bottom.

Species Lists


Proposed Names

20% (3)
Recognized by sight
-60% (3)
Used references: Taken from other obs. on this site.
28% (1)
Recognized by sight

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= Observer’s choice
= Current consensus


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Looking at web photos…
By: Douglas Smith (douglas)
2008-02-18 20:52:12 CST (-0600)

Looking at the photos on the web, it looks like you are right. Ceratiomyxa fruticulosa is just all white, and semi-branched, with no “stalk”. Where these are attached to the substrate with a wire-like “stalk”.

So, I don’t know what these are, and I’m not sure how much I really want to know about slime-molds…

Stalks are present
By: Darvin DeShazer (darv)
2008-02-18 16:39:03 CST (-0600)

In Ceratiomyxa, the stalk is the sporangium. It is all one unit. Here we have a stalk with a clearly defined sporangium on the tip of the stalk.
Photo Gallery of Myxomycetes

Katsaros, P. 1989. Illustrated Guide to Common Slime Molds. Mad River Press, Eureka, CA. 66p.

Created: 2007-10-24 11:19:06 CDT (-0500)
Last modified: 2012-09-24 21:22:04 CDT (-0500)
Viewed: 88 times, last viewed: 2019-08-23 15:28:45 CDT (-0500)
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