Observation 105382: Hemimycena cucullata (Pers.) Singer
When: 2012-08-15
(35.561° -84.2329° 259m)
Herbarium specimen reported

Notes: Same location and log as observations 103082 and 95190:
http://mushroomobserver.org/95190?q=SyPS
http://mushroomobserver.org/103082?q=Wqfu

FIELD NUMBER: CCB121

Images

249867
249866
249868
Stipe base
249869
251055
251056
251057
251058
251193
Caulocystidia, phloxine mount
251194
Caulocystidia, phloxine mount
251195
Caulocystidia, phloxine mount
251196
Gill edge
251197
Pileocystidia
251198
Pileocystidia
251199
Pileus cross section showing vinaceous reaction of pileus context in Melzer’s reagent
251200
Pileus scalp section showing amyloid reaction of cells on the top of the pileus.
251205
Spore, Melzer’s mount

Proposed Names

-28% (1)
Recognized by sight
28% (1)
Recognized by sight
57% (1)
Eye3 Eyes3
Used references: V. Antonin & M.E. Noordeloos (2004): A monograph of the genera Hemimycena, Delicatula, Fayodia, Gamundia, Myxomphalina, Resinomycena, Rickenella and Xeromphalina in Europe.

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

Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

Add Comment
Hm
By: Sava Krstic (sava)
2012-08-18 12:36:48 EDT (-0400)

Oleocystidium = A cystidium with an oily, resinous exudate [Snell & Dick, A Glossary of Mycology]. I doubt that this definition will be of great help, but will email you microdrawings for R. saccharifera. Cystidia in your photos don’t look like those.

Please check if there are (oleo)cystidia on the cap surface. Also, cheilocystidia and pleurocystidia (if any). Then spores; they should be amyloid.

In the genus description in Antonin and Noordeloos, it says that Resinomycena stature is omphaloid or mycenoid, which does not match what we have here.

I haven’t seen a Resinomycena yet, but would love to.

Oleocystidia
By: Christine Braaten (wintersbefore)
2012-08-18 11:48:41 EDT (-0400)

I have added some images of cystidia that were found on the stipe. I am not sure what “oleocystidia” will look like. I will collect more of these this afternoon and try to add more useful micrographs.

Oleocystidia
By: Christine Braaten (wintersbefore)
2012-08-16 07:59:28 EDT (-0400)

Thanks Sava! I will look for these today and post some pictures, and also look for more info on this genus.

Oleocystidia
By: Sava Krstic (sava)
2012-08-16 00:56:50 EDT (-0400)

Christine, have you looked at the cystidia on the cap and stem? They should bear a mucous cap, which is the distinguishing characteristic of the genus.

Resinomycena
By: Christine Braaten (wintersbefore)
2012-08-15 22:59:50 EDT (-0400)

This mushroom did not seam to fit well anywhere in Mycena, Hemimycena, or Marasmiellus. Then I found the name Resinomycena here: http://www.flickr.com/...
The name Resinomycena acadiensis does not seem to be in Index Fungorum, The name R. rhododendri: http://www.flickr.com/...
is registered at IF with the auth (Peck) Redhead & Singer and published in Mycotaxon 13(1): 152 (1981), but there is no Rhododendron in this forest.

And there is one other Resinomycena here on MO (102278): http://mushroomobserver.org/102278?q=WvVL

Created: 2012-08-15 12:59:48 EDT (-0400)
Last modified: 2013-07-01 23:01:24 EDT (-0400)
Viewed: 166 times, last viewed: 2016-11-21 08:20:36 EST (-0500)
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