Observation 140616: Tapinella panuoides (Batsch) E.-J. Gilbert
When: 2013-07-20
No herbarium specimen

Notes: Obviously growing on a log (oak?). These mushrooms, up to 2 cm wide, apparently are closed and sphere-like with a slit when young, then open out when mature. Attached to the wood by a very short central stem.

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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Seems possible, clam shell closed when young?
By: peterichards
2013-07-24 16:29:29 PDT (-0700)

The suggestion of Plicaturopsis crispa seems reasonable, and some of the images accessed on the web under this name appear similar. My photo is poor because dew on my lens reduced the resolution of the major open specimen, but the “gills” appear to be wavy and not straight.

Does anyone know if it typically has this “closed clam-shell” morphology when young?

In response to Christian’s comment about color, I would say the “gill” surface was very light tan and the outer surface a bit darker, but definitely not orange or darkish yellow. If these are P. crispa, judging from when other posted samples were documented, they are early, being seen on July 20.

Colors, fruiting habit, etc.
By: Christian (Christian Schwarz)
2013-07-22 14:01:45 PDT (-0700)

These seem to be too dark in color to be P. crispa (I get orange and yellowy-olive tones from the photo).
P. curtisii grows out from a central point for a while, and as the cap gets larger, they become asymmetrical and more ‘lateral’-looking. So the shape doesn’t necessarily rule that species out.
Most of these are definitely young by shape (infolded, thick margins). I see one ‘dead fruitbody’ but that can happen at any age.

I usually see P. crispa looking more fuzzy-capped, with paler gills, and in tighter clusters than these. Here are some observations to illustrate:
observation 76291
observation 120533
observation 116775
observation 5144

Probably not P. curtisii
By: peterichards
2013-07-22 13:23:47 PDT (-0700)

Thanks to Christian for the suggestion. However, this mushroom is centrally attached, not laterally; appears to be smaller and more delicate(?) than most images of P. curtisii suggest it is; and is at most 2 cm wide, whereas P. curtisii is 2-5 cm. At least one of the individuals in my photo appears to be old, indicating that these are not “babies”. Also, orange coloration is lacking.

Created: 2013-07-22 12:30:39 PDT (-0700)
Last modified: 2013-07-24 19:13:57 PDT (-0700)
Viewed: 80 times, last viewed: 2015-03-02 08:49:50 PST (-0800)
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