Observation 5031: Scleroderma Pers.

When: 2007-11-18

Collection location: Santa Clara Co., California, USA [Click for map]

Who: Charley Pow (charley280)

No specimen available

tight cluster of white mushrooms. The mushrooms on the left show the bottoms. Found growing in mulch of wood chips from a conifer tree.

The second image shows the cross section of two fungi.


cluster of mushrooms on left was broken off the main cluster. Mushrooms on the left are upside down, so you see the bottom of the mushrooms.

Proposed Names

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= Observer’s choice
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Add Comment
By: Joshua Birkebak (Shua)
2007-11-23 01:24:19 CST (-0500)

Nathan your right on… I got a little mixed up… thanks for the help!
Mushroom expert has a very good page on Sclerodermas

Scleroderma sp.
By: Nathan Wilson (nathan)
2007-11-23 00:36:59 CST (-0500)

I essentially agree with Joshua, but I wouldn’t call them S. citrina since that species is actually pretty distinctive. It looks more like the S. cepa/areolatum/laeve group, but you’ll have a hard time deciding between those with specimens that are this young. Additional things to look for are staining reactions when you scratch the surface and if you have access to a microscope, look at the spores.

By: Joshua Birkebak (Shua)
2007-11-22 21:36:22 CST (-0500)

The purple to blackish colors of the gleba are indicative of a sceleroderma… As far as a species name goes it is tricky… the catch all name is citrina though… Did these have a large underground base?

Need to see inside
By: Nathan Wilson (nathan)
2007-11-19 10:54:25 CST (-0500)

If you still have them, cut one in half and send a photo.