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26-03-2026 15:31

Hymenoscyphus ombrophiliformis?
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Hello,I found this one in October last year, on r

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Encoelia impudicella?
Hulda Caroline Holte

Hello,I collected this species growing on a dead b

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Helminthosphaeria
Elisabeth Stöckli

Bonsoir,Sur bois (tronc) très pourri de conifère

26-03-2026 12:50

Pseudombrophila
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Hi,I'm having a hard time figuring which Pseudombr

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asco in Ulmus
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Found 11-03-26, in leaf of Ulmus sp. Diameter 2-4

25-03-2026 22:23

Orbilia with resin deposits
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Dear Forum,On a debarked stem of Tilia, we found s

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Leptodontidium cf. trabinellum
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25-03-2026 20:53

Didymopsis helvellae on Helvella?
François Bartholomeeusen

Dear forum members,On 23 March 2026, I found sever

23-03-2026 20:16

Coprotus 210226 315
Miguel Ãngel Ribes Miguel Ángel Ribes

Good eveningI'm unable to identify this Coprotus o

25-03-2026 15:06

Hyaloscypha albohyalina à confirmer
Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,Pourriez-vous me confirm

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Is this Pyrenopeziza arctii (W. Phillips) Nannf. (1932) ?
Perz Piotr, 07-05-2006 18:10
Hi everybody

I can't found drawnings oder Pictures of Pyrenopeziza arctii. With B.Declerq key from Zotto's DVD this IS Pyrenopeziza arctii.

Has P.arctii spores with one end pointed und the secont round?

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Perz Piotr, 07-05-2006 18:10
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Perz Piotr, 07-05-2006 18:10
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Perz Piotr, 07-05-2006 18:10
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Perz Piotr, 07-05-2006 18:11
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Perz Piotr, 07-05-2006 18:11
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Perz Piotr, 07-05-2006 18:11
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Perz Piotr, 07-05-2006 18:11
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Perz Piotr, 07-05-2006 18:11
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Perz Piotr, 07-05-2006 18:11
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Perz Piotr, 07-05-2006 18:12
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Perz Piotr, 07-05-2006 18:12
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Perz Piotr, 07-05-2006 18:12
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Perz Piotr, 07-05-2006 18:12
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Perz Piotr, 07-05-2006 18:12
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Perz Piotr, 07-05-2006 18:13
Re:Is this Pyrenopeziza arctii (W. Phillips) Nannf. (1932) ?
drawnings
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Perz Piotr, 07-05-2006 18:13
Re:Is this Pyrenopeziza arctii (W. Phillips) Nannf. (1932) ?
ectal excipulum
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Perz Piotr, 07-05-2006 18:13
Re:Is this Pyrenopeziza arctii (W. Phillips) Nannf. (1932) ?
hairs
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Perz Piotr, 07-05-2006 18:13
Re:Is this Pyrenopeziza arctii (W. Phillips) Nannf. (1932) ?
hymenium
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Perz Piotr, 07-05-2006 18:13
Re:Is this Pyrenopeziza arctii (W. Phillips) Nannf. (1932) ?
margin 2
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Perz Piotr, 07-05-2006 18:13
Re:Is this Pyrenopeziza arctii (W. Phillips) Nannf. (1932) ?
margin 3
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Perz Piotr, 07-05-2006 18:14
Re:Is this Pyrenopeziza arctii (W. Phillips) Nannf. (1932) ?
spores
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Perz Piotr, 07-05-2006 18:19
Re:Is this Pyrenopeziza arctii (W. Phillips) Nannf. (1932) ?
This is my Found from 2006/ may /02 on Arctium spec. First i thinked this is Mollisia, then Pirottaea brevipila or Belonopsis asteroma. But Belonopsis asteroma growns on Carex and spores by Pirottaea brevipila does NOT hane on end round (Photos by Garcia on Zotto's DVD).

I am sure, everyone here does have experience with Pyrenopeziza arctii and can help me with maximal sure.

greetings from Poland

Pimpek
Jacques Trimbach, 07-05-2006 19:05
Re:Is this Pyrenopeziza arctii (W. Phillips) Nannf. (1932) ?
Les spores et le reste correspondent assez bien. Cf.Ellis & Ellis 1985, Microfungi on Land Plants et Dennis, British Ascomycetes.
Jacques Trimbach, 07-05-2006 19:10
Re:Is this Pyrenopeziza arctii (W. Phillips) Nannf. (1932) ?
En plus, les poils noirs sont assez différents et très caracteristiques chez les Pirottaea.
Perz Piotr, 07-05-2006 20:01
Re:Is this Pyrenopeziza arctii (W. Phillips) Nannf. (1932) ?
Hi Jacques

This means it IS P.arctii! Thanx !!

Very nice Asco :)

Pimpek
NC NC, 08-05-2006 00:12
Re:Is this Pyrenopeziza arctii (W. Phillips) Nannf. (1932) ?
Hi Piotr,

hereby a drawing of P. arctii in case there would be still some hesitation.

Best regards,

Bernard Declercq
Perz Piotr, 08-05-2006 00:30
Re:Is this Pyrenopeziza arctii (W. Phillips) Nannf. (1932) ?
Hi Bernard,

Thanx. On yours drawnings i can not see so long brown hairs and black ?cystals ?gel on margo. So you agree with me, that there is P.arctii?

Best,
Pimpek

ps.
This is drawning from living species?