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Observation 816: Stemonitis Gled.

When: 2006-10-14

Collection location: Novato, Marin Co., California, USA [Click for map]

Who: John Kirkpatrick (natashadak)

No specimen available

Found these on a piece of dead oak. The spores are (obviously) chocatate brown. I blew some off before taking pic #4; you can see the body is translucent.

From Wikipedia: Stemonitis is a distinctive genus of slime moulds found throughout the world (except Antarctica). They are characterised by the tall brown sporangia, supported on slender stalks, which grow in clusters on rotting wood. Identification within the genus is difficult, and can only be performed with confidence using a microscope.

Thanks, Darvin.

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Add Comment
Fixed minor typo
By: Administrator (admin)
2007-01-13 10:23:12 AEDT (+1100)

sp → sp.

Slime molds, lichens, molds and rusts welcome
By: Nathan Wilson (nathan)
2006-10-26 04:07:33 AEST (+1000)

I take a very loose interpretation of the word ‘mushroom’ and include slime molds, lichens, molds and rusts in the term. Mushroom is a common name, so there is no requirement that it be monophyletic. If it were ‘Fungus Observer’, then I might exclude slime molds. However, you would still have to include lichens, molds and rusts.

I’ll add something to the Introduction page about this.

Slime mold – Stemonitis splendens
By: Douglas Smith (douglas)
2006-10-26 03:30:00 AEST (+1000)

Yeah, when I first saw this I was thinking, are you sure
that is fungal? Looks like a slime mold perhaps, but what
do I know?

And I was poking through the Audubon N. Amer. Field Guide,
And there it was. I saw the guide had slime molds, and I
thought, hey slime molds too, what does it have on those?
And there it was, p853, color plate 736, Stemonitis

So, not mushroom, slime mold. Maybe should add to the
name of the site, Mushroom/Slime observer?

By: Darvin DeShazer (darv)
2006-10-15 14:15:00 AEST (+1000)

The genus is Stemonitis. Might be Stemonitis splendens which has been keyed out from Petaluma, CA.