Observation 19826: Stemonitis Gled.

When: 2009-03-28

Collection location: Muir Woods National Monument, Marin Co., California, USA [Click for map]

Who: Debbie Viess (amanitarita)

No specimen available


[admin – Sat Aug 14 02:03:20 +0000 2010]: Changed location name from ‘Muir Woods, CA’ to ‘Muir Woods, Marin Co., California, USA’

Species Lists


enlarge to see black spheres at top of rear sporangia…are those huge spores??!

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black spheres
By: Clive Shirley (myxo)
2009-03-31 05:11:50 MDT (-0600)

Hi Debbie,
The black spheres are quite often seen in this genus its normal the remains of the plasmoduim after been disturbed during development. Caused by insects, wind or been poked with a stick :). You can see more extrema sample on this photo of mine http://www.flickr.com/...

Once again to Id these you would need to look at it with a microscope.

One of the following
By: Johannes Harnisch (Johann Harnisch)
2009-03-30 17:14:56 MDT (-0600)

Either S. splendeus,spores purplish black…slightly warted..
or S. axifera but itis bright rust brown, with smaller smooth spores..
or S. fusca has stalk more than 1/4 total hight…spores netted..

black spheres
By: Patrick Harvey (pg_harvey)
2009-03-30 11:35:26 MDT (-0600)

Did they look like they were actually growing from them? Could they
be tiny beetles? That might explain the “eroding ends”…

By: Debbie Viess (amanitarita)
2009-03-30 11:16:22 MDT (-0600)

so what the heck ARE those black spheres? they seem to be present at all of the erroding tips of this slime mold…

Black spheres
By: Darvin DeShazer (darv)
2009-03-30 10:07:37 MDT (-0600)

The black spheres are not spores from Stemonitis as they are too small to see without a microscope. The brown fuzz are the spores in mass quantity.