Observation 216436: Simocybe P. Karst.

When: 2015-09-15

Collection location: Strawberry Creek, Berkeley, California, USA [Click for map]

Who: ISeritan

No specimen available

Images

557033
Found growing on a branch decaying in the stream.
557036
Smooth spores, around 7-10 microns x 4-6 microns.
557037
Cystidia on gills.
557239

Proposed Names

27% (4)
Eye3
Used references: Hesler, L.R. & Smith, A.H. (1965). North American Species of Crepidotus. Hafner Publishing Company: New York, NY. 168 p. + 18 pl.
Based on microscopic features: spore size and shape, cystida
28% (1)
Recognized by sight
28% (1)
Used references: Dr. Cathie Aime (personal correspondence)
46% (2)
Eyes3
Used references: Dr. Cathie Aime (personal correspondence)

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

Add Comment
i think this is more a Simocybe than a Crepidotus
By: Davide Puddu (Davide Puddu)
2016-02-03 14:22:19 CST (-0600)

Anyway , i cite “THE CREPIDOTACEAE (BASIDIOMYCOTA, AGARICALES):
PHYLOGENY AND TAXONOMY OF THE GENERA AND
REVISION OF THE FAMILY BASED ON
MOLECULAR EVIDENCE”:
“Chiefly, Simocybe can be diagnosed
from Crepidotus by (1) basidiospores which are always
smooth and differ from smooth-spored Crepidotus species
in that the adaxial side is typically applanate to depressed;
and (2) abundant pileo-, caulo-, and cheilocystidia (the latter
two most typically subcapitate), lending a pruinose appearance
to these structures macroscopically. Additionally, many Simocybe
members have an olivaceous tint to the pileus, lacking
in Crepidotus.”

Spores are smooth?
By: Alan Rockefeller (Alan Rockefeller)
2016-02-02 21:00:37 CST (-0600)
Do you have the specimen?
By: Danny Newman (myxomop)
2016-02-02 15:15:55 CST (-0600)
correction
By: Danny Newman (myxomop)
2015-10-11 19:42:19 CDT (-0500)

there is much talk of stipitateness (stipitation? stipitacity?) in Cathy Aime’s thesis on the genus:

http://scholar.lib.vt.edu/...

precisely
By: Danny Newman (myxomop)
2015-09-28 19:33:58 CDT (-0500)

since this is stipitate, I do not think it can be a Crepidotus.

@ Danny Newman
By: ISeritan
2015-09-28 19:23:02 CDT (-0500)

No, it wasn’t sessile, all of the specimens were attached by a stipe.

I thought Crepidotus
By: Danny Newman (myxomop)
2015-09-28 18:49:05 CDT (-0500)

was exclusively sesile?

Post the spore print
By: Tom Bruns (pogon)
2015-09-18 22:29:28 CDT (-0500)

Ioana – this is a great post, someone will probably recognize this from the images.

Created: 2015-09-18 15:26:33 CDT (-0500)
Last modified: 2016-02-03 17:06:57 CST (-0600)
Viewed: 131 times, last viewed: 2017-06-20 20:28:47 CDT (-0500)
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