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OfflineSieni505
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Registered: 07/31/14
Posts: 287
Loc: Finland, Ostrobothnia
Last seen: 7 years, 24 days
Large, yellow-brown Mycena-like fungus for ID
    #22508130 - 11/11/15 06:55 AM (8 years, 2 months ago)




Location Malta (Mediterranean region)
Date: 09 November 2015

Habitat:
Accumulation of woody debris (stickys/twigs) in axils of a palm tree.

Gills:
Adnate, pale brown

Stem:
5cm long, 3-4mm wide, white with some tan hues, smooth with flocks of pruinosity,

Cap:
3cm wide, Caramel-yellow centre, fading to a pale grayish brown and ending with a dull brown edge, applanate with a conspicuous umbo, slightly deliquescent, hygrophanous (I think), semi-translucent (Myecena?) with streaks of white pruinosity.

Spore print color:
Chocolate brown

Bruising:
Nil

Other information:
Clamp junctions present, basidia with sterigmata could not be observed, but likely the numerous cheilocystidia-like structures are in fact basisia (See images).

Spores dark brown with a thick hyaline(?) wall and a conspicuous apical germ. pore


I was thinking if this belongs to Mycena sp.??


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www.FinlandNature.com


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OfflineAnglerfishM
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Registered: 09/08/10
Posts: 18,646
Loc: Norvegr Flag
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Re: Large, yellow-brown Mycena-like fungus for ID [Re: Sieni505]
    #22508152 - 11/11/15 07:06 AM (8 years, 2 months ago)

Quote:

Sieni505 said:
I was thinking if this belongs to Mycena sp.??




Seriously? With a brown spore print?

This is a Psathyrella (or maybe Kauffmania) sp.

Useful key: http://www.vielepilze.de/selten/psat/key/ekey.pdf


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OfflineSieni505
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Registered: 07/31/14
Posts: 287
Loc: Finland, Ostrobothnia
Last seen: 7 years, 24 days
Re: Large, yellow-brown Mycena-like fungus for ID [Re: Anglerfish]
    #22508168 - 11/11/15 07:11 AM (8 years, 2 months ago)

Do all Mycena have a white spore print?  Good to know (thought of exceptions in this large genus). I give the key a try...

Many thanks


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OfflineSieni505
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Registered: 07/31/14
Posts: 287
Loc: Finland, Ostrobothnia
Last seen: 7 years, 24 days
Re: Large, yellow-brown Mycena-like fungus for ID [Re: Anglerfish]
    #22508280 - 11/11/15 08:10 AM (8 years, 2 months ago)

More images of the cystidia.  Should I also consider conocybe?



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Edited by Sieni505 (11/11/15 08:25 AM)


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OfflineAnglerfishM
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Re: Large, yellow-brown Mycena-like fungus for ID [Re: Sieni505]
    #22508378 - 11/11/15 08:37 AM (8 years, 2 months ago)

Quote:

Sieni505 said:
Do all Mycena have a white spore print?





Yes, without exception.

Quote:

Sieni505 said:
Should I also consider conocybe?
]




No. There is not one visible feature matching Conocybe.

If you can't key it out, try getting it sequenced. Might be an undescribed species.

Many species in Psathyrellaceae are complex and difficult to identify.


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OfflineSieni505
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Registered: 07/31/14
Posts: 287
Loc: Finland, Ostrobothnia
Last seen: 7 years, 24 days
Re: Large, yellow-brown Mycena-like fungus for ID [Re: Sieni505]
    #22508418 - 11/11/15 08:51 AM (8 years, 2 months ago)

My first suspect is Psathyrella bivelata


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InvisibleByrain

Registered: 01/07/10
Posts: 9,664
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Re: Large, yellow-brown Mycena-like fungus for ID [Re: Sieni505]
    #22508479 - 11/11/15 09:09 AM (8 years, 2 months ago)

Psathyrella.

Get me the spore size and label your cystidia images (Are they cheilocystidia?) and check if pleurocystidia is present or not on the gill face.


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OfflineSieni505
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Registered: 07/31/14
Posts: 287
Loc: Finland, Ostrobothnia
Last seen: 7 years, 24 days
Re: Large, yellow-brown Mycena-like fungus for ID [Re: Byrain]
    #22517277 - 11/13/15 09:16 AM (8 years, 2 months ago)

Dear all and esp. Byrian

I placed this as Psathyrella bivelata, a mediterranean species.

Spore length: range 8.3 - 10.1 µm
Spore length: mean 9.1 µm
Spore width: range 4.4 - 6 µm
Spore width: mean 5.3 µm
Spore Q factor: range 1.6 - 1.9
Spore Q factor: mean 1.7
Spore shape Elliptical
Amyloid reaction absent or very weak
Spore surface Smooth
Apiculum Absent
Germinal pore Conspicuous, terminal/apical
Spores appears to have a broad hyaline wall

Pleurocystidia not sure if present or not since the gills were 'dissolving out' and couldn't dissect properly but the entire gill was mounted.

At any rate, cheilocystidia present and abundant:
Cheilocystidia (gill edges) Abundant
Cheilocystidium ornamentation
Cheilocystidium length: range 35 - 47.5 µm
Cheilocystidium length: mean 41 µm
Cheilocystidium width: range 9.5 - 11.25 µm
Cheilocystidium width: mean 10.15 µm


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Edited by Sieni505 (11/13/15 09:17 AM)


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InvisibleRuralAnomaly
Sporadic
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Registered: 10/05/13
Posts: 2,153
Loc: Spitzenkörper Ohio
Re: Large, yellow-brown Mycena-like fungus for ID [Re: Sieni505]
    #22517334 - 11/13/15 09:33 AM (8 years, 2 months ago)

Quote:

Sieni505 said:
Dear all and esp. Byrian

I placed this as Psathyrella bivelata, a mediterranean species.





now that's some global warmin'!


--------------------
bite my basidiocarp


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