Observation 19425: Clitocybe salmonilamella H.E. Bigelow
When: 2009-03-14
No herbarium specimen

Notes: Growing under redwoods. I had a hard time keying this out. It looks like a Marasmius sp. I don’t think it is in the Hygrophoraceae the gills don’t seem that waxy. The cap was fragile esp. the gills tear easily. Tastes a little bitter. Cap is not sticky or viscid. Smells mealy, not distinctive.

[admin – Sat Aug 14 02:06:47 +0000 2010]: Changed location name from ‘Tilden Park, Berkeley, Alameda Co. California, USA’ to ‘Tilden Regional Park, Contra Costa Co., California, USA

Proposed Names

-28% (1)
Recognized by sight: White spore print, Growing under redwoods, Cap 5-6 cm across. depressed in center. gills pinkish, decurrent
Based on microscopic features: Spores 7-8µm x 3-4 µm
78% (1)
Eyes3
Recognized by sight: Distinct pinkish cast on the gills that remains so in the dried material too.
Used references: http://mushroomhobby.com/...
Based on microscopic features: Spore shape and size

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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The Methylene Blue worked pretty well here.
By: Dimitar Bojantchev (dimitar)
2009-03-16 13:30:51 PDT (-0700)

Normally hyaline spores are pretty hard to see well and
photograph, but the blue worked quite well on these spores. I
think you’re on to something here. I will try it myself.

One thing that I’ll cover on the MT forum, as it transcends this
observation — I think that both, you and Christian have plenty of
resolution to try some stronger magnification eyepieces, like
15-16×. In the case of Christian with his fancy equipment, he may
even try a 25X eyepiece.

D. www.mushroomhobby.com
Yes it was Methylene blue.
By: Richard Sullivan (enchplant)
2009-03-16 12:11:26 PDT (-0700)

Sorry for not mentioning it. The spores were white and not easy to see, when they were in plain water. My daughter Lauren (11) wanted to put the stain on and insisted we use blue! From now on I will mention what I use. Dimitar and Christian – Thanks so much for helping with this ID. I tried lots of my inadequate books and was getting nowhere!

c. salmonilamella
By: Christian (Christian Schwarz)
2009-03-16 11:15:26 PDT (-0700)

Wow, cool. Thanks Dimitar, the spore shape makes much more sense for Clitocybe.

Could be Clitocybe
By: Douglas Smith (douglas)
2009-03-16 10:22:03 PDT (-0700)

This could be Clitocybe, there are a number of those where the gills go slightly pinkish, either on their own in age, or when the start to dry out.

I didn’t see any mention of the reagent that might have been used in the preparation of the slide, so I’m not sure I could assume why they are blue. It would be good to make sure this doesn’t mean the spores are amyloid.

Clitocybe salmonilamella
By: Dimitar Bojantchev (dimitar)
2009-03-16 10:20:38 PDT (-0700)

This is one of the stranger Clitocybe in the California
forests. In fact it drove me crazy in 2006. The pinkish gills
suggested something in the Entoloma Rhodopolium group, but the
decurrent gills were off. But now that Richard has shown the
spores (the only right way to id these!!) we can firmly conclude
that this is not an Entoloma. I’m pretty sure that this is
Clitocybe salmonilamella.

Compare here — I will post my spore shots at some point, but the size
is correct.

http://mushroomhobby.com/...

Fun collection,

D.
entolomataceae
By: Christian (Christian Schwarz)
2009-03-16 09:41:30 PDT (-0700)

But the spores don’t look very angular – which pretty much discounts entoloma, nolanea, and leptonia…
If the blue color is cresyl blue or methylene blue or something like that, it may have obscured ridges or striations on the spores, which would suggest clitopilus (but this doesn’t look particularly like a clitopilus).

Um, why blue?
By: Douglas Smith (douglas)
2009-03-16 09:28:24 PDT (-0700)

Why are the spores blue there? Is that color correct?

Created: 2009-03-15 12:22:22 PDT (-0700)
Last modified: 2010-08-27 19:00:08 PDT (-0700)
Viewed: 169 times, last viewed: 2016-11-13 21:03:45 PST (-0800)