Collection location: Babler State Park, Wildwood, Missouri, USA [Click for map]
A gregarious fruiting of mature (old) specimens on the ground in mixed hardwoods forest. Fruit body 3.5 cm. X 2.5 cm., hard, fairly rigid. Tough and rough 2 mm. thick rindlike perideum with scales that have small central warts. See close-up image # 0957. Powdery spore mass.
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I will mark my calendar right now and revisit the site next July. Thanks again for your helpful comments.
collections taken in late August or even two weeks from now will likely be a different species, even when taken from near the same spots (based on my Scleroderma collections from Adventist Hospital grounds). Based on my collections from that location, there are a total of at least 5-6 species found at different locales on the grounds, and at slightly different times.
Collections taken from late July next year may match this species, though.
The prominent central warts and relatively thin peridium (aka “rind”) make this specimen very interesting.
be back at the same park where this specimen was found in September for another class, so I’ll try to locate some more (fresher) specimens. I should be able to have someone in the association do some microscopy and, hopefully, even DNA analysis. then we’ll know for sure. Thanks again; I appreciate your looking at my observation.
way to assess S. citrinum: by the parasites that occur only on that species. Try looking at Pseudoboletus parasiticus (MO 212060). Especially compare the visible peridium on this specimen of S. citrinum to yours.
this is a Scleroderma, Judi. It should have a much thicker peridium (outer shell) than this appears to show. Also, spores appear to be covering both the peridium and sterile base.
I’d guess this may be new, and needs to have a voucher collection if you can find it again.
Created: 2015-08-03 10:45:13 PDT (-0700)
Last modified: 2015-08-03 10:45:16 PDT (-0700)
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