Accès membres

Mot de passe perdu? S'inscrire

03-09-2025 12:44

Enrique Rubio Enrique Rubio

Hi to somebody.I would like to know your opinion o

02-09-2025 10:28

Castillo Joseba Castillo Joseba

De ayer en madera muy podrida de haya (Fagus)A ver

31-08-2025 19:41

Enrique Rubio Enrique Rubio

Hi to someone.I need to download this issue of Sve

02-09-2025 11:34

Thomas Læssøe

https://svampe.databasen.org/observations/10527903

31-08-2025 17:32

Michel Hairaud Michel Hairaud

Bonjour, Pas d'identité trouvée pour cette réc

01-09-2025 08:42

François Corhay

Un ami, conservateur d'une RN en Belgique, m'a adr

31-08-2025 14:34

Thomas Flammer

I have found a Rutstroemia on abt. 2000 m on Alnus

29-08-2025 19:04

Thomas Flammer

Spores 21.2 - 26.2 x 8.3 - 11.3 µm - Q: 2.20 - 2.

30-08-2025 18:29

Joaquin Martin

Hi,I found this undetermined ascomycete on broadle

28-08-2025 17:24

Thomas Flammer

I know, that this is not the real topic of this fo

« < 1 2 3 4 5 > »
Ceratostomelloid fungus on Fagus sylvatica
Enrique Rubio, 04-09-2014 13:56
Enrique RubioHi again

I'd like to know your opinion about this 'ceratostomelloid' fungus growing on rotten wood of Fagus sylvatica. The beaked, scattered, glabrous, inmersed perithecia are up to 1 mm high with only the long necks erumpent across the surface.


The asci are cylindrical, shortly stipitate, 63-85 x 6-7 microns, with an conspicuous apical apparatus IKI negative and 8 ascospores obliquely uniseriate. Paraphyses septate tapering at the end. Ascospores 8.5-11.5 x 4.3-4.9; Q = 1.96-2.58, allways 2-guttulate, smooth, maybe porate (?).


I think this fungus agrees better with Xylomelasma than Ceratostomella. What do you think?


Thanks again

  • message #31113
  • message #31113
  • message #31113
  • message #31113
Jacques Fournier, 04-09-2014 16:44
Jacques Fournier
Re : Ceratostomelloid fungus on Fagus sylvatica
Hola Enrique,
Xylomelasma sordida seems to be a good match. Did you observe the peculiar ascogenous cells at the base of the asci, as described by Réblova? You have to make a very thin slide to see them, hard job!
Saludos,
Jacques
Enrique Rubio, 04-09-2014 18:22
Enrique Rubio
Re : Ceratostomelloid fungus on Fagus sylvatica

Bonsoir Jacques


It's really hard! Because the interascal tissue is dense and very little congophilous


 


Thanks gain!

  • message #31118
  • message #31118