Observation 64228: Nolanea fusciceps (Kauff.) Largent

When: 2011-03-08

Collection location: Samuel P. Taylor State Park, Marin Co., California, USA [Click for map]

Who: Ron Pastorino (Ronpast)

Specimen available

These were growing in an open area on the ground as seen in the photos.
Caps were up to 3 cm across and stems up to 2.5 cm long.
Pinkish-fleshy spores were mostly 6 sided and ~8.5-11.0 X 8.0-9.9 microns.
Did not see any cystidia on gill edges.
I attempted to list them as “Leptonia sp.” but was rejected.


Cap cuticle in KOH
Cap cuticle in KOH

Proposed Names

29% (1)
Recognized by sight
57% (1)
Eye3 Eyes3
Used references: Entolomatoid Fungi of the Western United States and Alaska by D. Largent

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

Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
I see…
By: Matt Sherman (Shermanii)
2011-03-11 21:57:03 CET (+0100)

Ah, I see.
Thanks for explaining that Christian!

By: Christian (Christian Schwarz)
2011-03-11 21:29:18 CET (+0100)

Although I agree it doesn’t make a lot of sense, here’s my best guess:
Co-David and Noordeloos’ paper showed that Nolanea and Leptonia are not genetically supported genera.

So if all you know is genus-level identification, it makes sense to call it an Entoloma, because at the genus level, Nolanea and Leptonia have been merged with Entoloma.

However, only a fraction of all currently published species of Leptonia and Nolanea have been formally republished, so the old combinations are still the only validly published way of referring to these species.

How come?
By: Matt Sherman (Shermanii)
2011-03-11 21:16:42 CET (+0100)

Why is it that one can suggest a particular species of Nolanea, but cannot suggest only the genus Nolanea?

I’ve tried suggesting Nolanea for one of my observations and the site says it’s depreciated.
Can someone explain?

You guys in control…
By: Dimitar Bojantchev (dimitar)
2011-03-11 06:56:28 CET (+0100)

You guys sound like you know what you’re talking about and I think you do…

The E. sericea is common in open grass areas, particularly around this time of the year. I see them from January to April, but rarely earlier.

Christian, there is one very interesting little Entoloma (not holoconiota) that fruits near snowbanks in Sierra Nevada. Two actually, come to think of it, relatively common in Yosemite. I bet you those are out of the books and need academic care…


N. sericea
By: Christian (Christian Schwarz)
2011-03-11 06:17:20 CET (+0100)

should have really obvious plaques or rings of incrustation and no clamps.
This doesn’t have strong incrustations, but very obvious pigment granules. Can you tell us anything about the presesence/absence of clamps?

Great work, Ron.

Noleana fusciceps and Noleana sericea
By: Ron Pastorino (Ronpast)
2011-03-11 05:52:40 CET (+0100)
both appear to be good candidates. I’ve added a couple of more micro photos of a portion of the cap cuticle in KOH. I’m not really sure of what to look for or what I’m looking at. The brown spots and brown “incrustations?” were not real numerous. Apparently N. sericea has the incrustations and the other doesn’t. Actually the spore size seems to be within range for both from what I could find on the PNW Key Council site.
Possible candidates
By: Christian (Christian Schwarz)
2011-03-11 04:02:25 CET (+0100)

Nolanea fusciceps looks pretty good for habitat, colors, and spore shape, but the spores should be slightly smaller.

However, I reached that ID based on an assumption about the pileal pigments – check if they are evenly intracellular or incrusting, etc.

Created: 2011-03-10 07:01:54 CET (+0100)
Last modified: 2011-03-11 17:49:00 CET (+0100)
Viewed: 163 times, last viewed: 2018-07-05 03:55:23 CEST (+0200)
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