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14-12-2017 00:05

Plicaria endocarpoides????
Valencia Lopez Francisco Javier

Hola a todos/asEstas Plicarias están recolectadas

07-12-2017 22:53

Hyaloscypha ??
Rubén Martínez-Gil Rubén Martínez-Gil

Hola a todos. Subo unas fotos de un asco que hemo

12-12-2017 17:03

Immersed pyrenomycete with very large spores
Ethan Crenson

From New York City.  The perithecia are immersed

13-12-2017 10:41

Ciboria (?) en xérobrometum
Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,J'ai trouvé hier en pel

11-12-2017 17:59

je patauge
Lefèvre Lefèvre Lefèvre Lefèvre

Bonsoir à tousJe patauge dans la semoule avec ce

12-12-2017 13:20

En semilla de Eucalipto
Castillo Joseba Castillo Joseba

He recolectado esta especie en semilla de Eucalipt

10-12-2017 15:31

Patellaria atrata sur Tilia
Bernard CLESSE Bernard CLESSE

Bonjour à tous,Je pense avoir trouvé Patellaria

07-12-2017 23:17

Allophylaria ??
Rubén Martínez-Gil Rubén Martínez-Gil

Hola a todos. Subo unas fotos de un asco que hemo

09-12-2017 19:39

Article of the genus Paraphaeosphaeria
Mlcoch Patrik Mlcoch Patrik

Good day,I have a question, if have someone articl

09-12-2017 17:43

Neurospora from used coffee filter bags
Stephen Martin Stephen Martin

My friend was concerned about a fungus growing on

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Pyrenomycet on Corylus avellana.
Per Marstad, 18-12-2017 10:41
Per MarstadHello.
I would like a name on this.
Spores 15x6 my.
Asci 150x7
Greetings, Per
  • message #51652
  • message #51652
  • message #51652
Gernot Friebes, 18-12-2017 10:53
Re : Pyrenomycet on Corylus avellana.
Hi, Per,

it looks like a Hypoxylon, e.g. H. fuscum, which is very common on Corylus. If you can, please put a piece of the stroma in a drop of KOH and observe the KOH-extractable pigments. For further infos also see here: http://pyrenomycetes.free.fr/hypoxylon/html/Hypoxylon_fuscum.htm


Best wishes,
Gernot

Jacques Fournier, 18-12-2017 15:31
Jacques Fournier
Re : Pyrenomycet on Corylus avellana.
I agree with Gernot, it might be H. fuscum but the spores you show have a conical cellular appendage at base, which is unknown in Hypoxylon.Make sure they come from the stromata you show on pics 1-2.
Ascospores of H. fuscum are also distinctive in having a sigmoid, not straight germ slit, please take photos at higher magnification to illustrate this.
Jacques
Per Marstad, 18-12-2017 16:11
Per Marstad
Re : Pyrenomycet on Corylus avellana.
The spores came from my pictures 1 and2.
I know H. fuscum well, but this has another shape.
Thank you both for help.
Per.