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26-03-2026 15:31

Hymenoscyphus ombrophiliformis?
Ãke Widgren Åke Widgren

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

26-03-2026 12:50

Pseudombrophila
David Chapados David Chapados

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

26-03-2026 11:17

asco in Ulmus
Vasileios Kaounas Vasileios Kaounas

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

25-03-2026 10:35

Encoelia impudicella?
Hulda Caroline Holte

Hello,I collected this species growing on a dead b

25-03-2026 22:23

Orbilia with resin deposits
Marc Detollenaere Marc Detollenaere

Dear Forum,On a debarked stem of Tilia, we found s

24-03-2026 15:44

Leptodontidium cf. trabinellum
Åge Oterhals

I hope someone can confirm the name of this collec

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

25-03-2026 13:54

Litterature on Eutypa
Enrique Rubio Enrique Rubio

Does anyone know where I could download Paoletti's

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Marcelleina donadinii ??
Rubén Martínez-Gil, 13-12-2014 21:47
Rubén Martínez-Gil

Hola a todos.


Subo unas imágenes de un disco negruzco que hemos encontrado hoy sobre tierra húmeda, en un bosquete de P. halepensis y carrascas,


Tiene esporas esféricas de 14,5-17,5 micras, con verrugas redondeadas muy pequeñas y aisladas.


No vistos croziers, IKI(-).


¿Qué os parece que puede ser?


Gracias por su ayuda.


Rubén

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Rubén Martínez-Gil, 13-12-2014 23:34
Rubén Martínez-Gil
Re : Disco negruzco

Hola de nuevo.


Subo unas imágenes del excípulo ectal y del margen del apotecio, así como de la base de las ascas bifurcada.


Un saludo


Rubén

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Peter Püwert, 14-12-2014 01:45
Peter Püwert
Re : Disco negruzco
Hi,
may be Scabropeziza/ Plicaria spec.
Peter.
Beñat Jeannerot, 14-12-2014 06:00
Beñat Jeannerot
Re : Disco negruzco
Adio Ruben,

I don't know but only for information, see description of Greletia (Smardaea) mülleri, an american species.

Beñat
Rubén Martínez-Gil, 14-12-2014 23:44
Rubén Martínez-Gil
Re : Disco negruzco

Gracias Peter, Beñat.


He mirado Greletia mülleri y la ornamentación esporal es parecida y podría encajar, pero la medida esporal es algo menor.


Seguiré buscando.


Un saludo


Rubén

Lepista Zacarias, 15-12-2014 00:27
Re : Disco negruzco
Did you consider Marcelleina?
Hope you find the correct name for it.
Sincerely,
zaca
Iglesias Plácido, 15-12-2014 00:41
Re : Disco negruzco
Marcelleina pseudoanthracina ?

Plácido
Beñat Jeannerot, 15-12-2014 06:49
Beñat Jeannerot
Re : Disco negruzco
Kaixo Placido,

M. pseudoanthrancina is a Peziza, see fungi non delineati by René.
And spores of it are around 7-8 µm, not 14-17 like here. A big difference, no ?

Agur bero bat,
Beñat
Nicolas VAN VOOREN, 29-09-2022 14:18
Nicolas VAN VOOREN
Re : Disco negruzco
Back to this old post...

For a project dedicated to some Marcelleina species, we had the opportunity to sequence Rubén's collection. A paratype of Marcelleina donadinii was also revised and sequenced, and appears to be the same as Rubén's fungus!
Except the spore size, slightly smaller, Ø (12.5) 13-15 µm, in the paratype, the other features agree with Moravec's description (1987). Note that Moravec's drawing of ascospores doesn't correctly render the small warts on the surface (its SEM photos are more informative).
Finally, this species seems to be a member of Discinaceae...
Rubén Martínez-Gil, 29-09-2022 15:31
Rubén Martínez-Gil
Re : Disco negruzco
Hola Nico.
Gracias por la información.

Un abrazo
Rubén