Observation 61035: Pluteus Fr.

When: 2010-12-19

Collection location: Willits, California, USA [Click for map]

Who: Noah Siegel (Noah)

Specimen available

Cap 3-5cm across, growing on tanoak.

[admin – Tue Feb 08 12:35:09 +0000 2011]: Changed location name from ‘Willits, Mendocino Co., California, USA’ to ‘Willits, California, USA

Proposed Names

74% (6)
Eye3 Eyes3
Recognized by sight
-34% (6)
Recognized by sight
25% (1)
Recognized by sight
49% (2)
Recognized by sight

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Add Comment
By: Alfredo Justo (Fredo)
2013-12-03 03:39:27 AEDT (+1100)
By: Irene Andersson (irenea)
2010-12-25 19:52:33 AEDT (+1100)

Pluteus romellii was originally described from southern Germany, and yet you have it all over North America :-)
Most Pluteus species aren’t that particular about geography, I think.

Anyway, microscopy of the cap cuticle is essential for identification.

By: Christian (Christian Schwarz)
2010-12-25 06:02:18 AEDT (+1100)

described that species from Virginia, which is my first cause for concern.

I checked the description in NYBG Flora of North America vol 10-11 and it doesn’t sound quite right – the green color is de emphasized (greenish-yellow), and the strongly rugose-pruinose cap is emphasized ours was only lightly rugose (but this may have been due to heavy rain).

I will check spore size/cystidia/and pileipellis when I get back to Santa Cruz in a little over a week.

By: Irene Andersson (irenea)
2010-12-25 05:24:49 AEDT (+1100)

I had almost forgotten that one. Did you check the collection and description of P. rugosidiscus..?

Also look at
By: Noah Siegel (Noah)
2010-12-25 04:53:54 AEDT (+1100)
Another obs
By: Irene Andersson (irenea)
2010-12-24 19:58:37 AEDT (+1100)

15640 (Pluteus lutescens/romellii) isn’t too far away after all :-)

Sp 6-7.5(-8) x (4.5-)5.5-6.5(-7) μm ?

By: Darvin DeShazer (darv)
2010-12-24 08:54:39 AEDT (+1100)

Is the pileipellis a hymeniderm or a cutis?

By: Irene Andersson (irenea)
2010-12-24 07:23:28 AEDT (+1100)

not vitellinus then. But there are other Bolbitius species with paler spores without germ pore (pluteoides is one). We know that Bolbitius reticulatus grows on wood, and so does B. psittacinus (cap red, yellow or green or a mix of two or three colours, resembling Hygrocybe psittacina).
I’m still not convinced about Pluteus, but I have no idea which Bolbitius species you could have in California.

Thank you
By: Johannes Harnisch (Johann Harnisch)
2010-12-24 06:00:13 AEDT (+1100)

yes it usually seems to grow on dung and decomposed stuff more I think

Not Bolbitius
By: Christian (Christian Schwarz)
2010-12-24 05:51:14 AEDT (+1100)

I scoped these this morning – spores appear more or less hyaline in KOH (not bright brownish) and have no germ pore, much more broadly ellipsoid to nearly subglobose.

In our area, B. vitellinus doesn’t usually grow on such coarse woody debris.

I agree with Irenea
By: Johannes Harnisch (Johann Harnisch)
2010-12-23 13:19:54 AEDT (+1100)

it does look like a green Bolbitius
Take a look at the spores through the scope please :D

By: walt sturgeon (Mycowalt)
2010-12-21 09:45:37 AEDT (+1100)

You should get this collection to someone. Maybe Else?

Looks viscid
By: Irene Andersson (irenea)
2010-12-20 17:30:49 AEDT (+1100)

Green variety of Bolbitius vitellinus?

By: Erin Page Blanchard (CureCat)
2010-12-20 17:22:14 AEDT (+1100)

On wood, with pink mature gills, and longitudinally striate stipe.

spore print?
By: Debbie Viess (amanitarita)
2010-12-20 17:14:39 AEDT (+1100)

this sure looks more like a Hygrocybe…

Created: 2010-12-20 13:17:44 AEDT (+1100)
Last modified: 2016-06-18 12:41:44 AEST (+1000)
Viewed: 397 times, last viewed: 2017-06-08 21:57:26 AEST (+1000)
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