2012 Wrapup and Request for Support
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Observation: Gymnopus (Pers.) Roussel (92956)
About Gymnopus (Pers.) Roussel [MyCoPortal]
More Observations (404)
Similar Observations (208)
Public Description (default)
When: 2012-04-18
Collection location: Kahite Trail, Vonore, Tennessee, USA [Click for map] (35.0° 84.0°)
Who: Christine Braaten (wintersbefore)
Herbarium specimen reported

Notes: Habitat: On mulch and in grass along roadside. Very common, often clustered.
Width of cap: 1.5 cm
Length of the stip: 2-4cm
Cap: brown but drying to buff.
Stipe: covered with vinaceous fuzz
Lamellae: adnate
Spore print: white
Spores: smooth, elliptical/lacrymoid approx 8×4 microns.

*Still need to test if this has an alkaline reaction.

Species Lists:
Observations with Microscopic Detail Images
Proposed Names: Propose Another Name
Proposed Name User Community Vote
  wintersbefore   1% (2)   Eye3
Recognized by sight
  wintersbefore   30% (2)   Eye3Eyes3
Recognized by sight
  wintersbefore   1% (2)   Eye3
Recognized by sight

Please login to propose your own names and vote on existing names.

Eye3 = Observer’s choice Eyes3 = Current consensus
Comments: Add Comment

Created: 2012-04-23 15:49:40 EDT (-0400)
By: Christine Braaten (wintersbefore)
Summary: Thanks for your comments

G. spongiosa looks really good.
http://www.mushroomexpert.com/gymnopus_spongiosus.html

I am going to suggest the name for now and will update later with KOH reaction.
196968

Created: 2012-04-23 12:13:57 EDT (-0400)
By: Roy Halling (royh)
Summary: With hydroxide(s)

either KOH or ammonia, you can duplicate the green reaction. G. alkalivirens has granular pigment in the lamellar trama and G. semihirtipes has that pigment present only in the stipe trama. Make a mount of the dried material in water to see the pigment granules; add hydroxide and the greening comes. See Mycologia 73: 634-642. 1981. G. spongiosa is a third member of this group. Nice find!
32535

Created: 2012-04-22 11:31:24 EDT (-0400)
By: Christine Braaten (wintersbefore)
Summary: Should be the same

as this observation, I collected these from the same location a couple weeks prior: http://mushroomobserver.org/91467?q=DMIp
196968

Created: 2012-04-22 08:27:45 EDT (-0400)
By: Roy Halling (royh)
Summary: Could be

G. alkalivirens. It’s the right time of year and the stipe color looks right for it. At least that’s what I remember.
32535

Created: 2012-04-18 19:43:57 EDT (-0400)
Last modified: 2012-04-23 16:19:16 EDT (-0400)
Viewed: 95 times, last viewed: 2013-05-25 02:54:10 EDT (-0400)
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