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13-02-2026 18:05

Margot en Geert Vullings

On February 9, 2026, we found these small hairy di

02-02-2026 21:46

Margot en Geert Vullings

On a barkless poplar branch, we found hairy discs

13-02-2026 03:30

Tomaz Vucko Tomaz Vucko

Hello! I found these immersed perithecia on a stic

15-02-2026 04:32

Tomaz Vucko Tomaz Vucko

One more specimen that is giving me some descent a

14-02-2026 22:45

Tomaz Vucko Tomaz Vucko

Hy!I would ask for some help determing this specie

09-02-2026 14:46

Anna Klos

Goedemiddag, Op donderdag 5 februari vonden we ti

14-02-2026 19:09

Valencia Lopez Francisco Javier

Hola colegasEstoi interesado en este articulo, Agn

14-02-2026 10:58

Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,Pourriez-vous m'aider à

13-02-2026 18:02

Nogueira Héctor

November 2025 León (SPAIN) ID Help Hello! Thi

12-02-2026 21:34

patrice Callard

Bonjour, la face inférieure des feuilles ce certa

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Hypoxylon?
Per Vetlesen, 04-08-2015 20:38
Substrate: Corylus avellana
Asci cylindric, 8-spored (some 4-spored), the spore-bearing parts Me = 77 x 9 µm, IKI+.
Spores 1-celled, dark, germinating pore almost the whole spore length a bit bent? Me = 13 x 5.5 µm.

I'm just a beginner when it comes to Ascomycetes and even when there are good keys on the Internet, I find it is very difficult to identify species. Anyway, I think this belongs in Xylariaceae in section Hypoxylon?
Microscopic it has much in common with Hypoxylon fuscum, but macroscopically it do not fit?
Many thanks for inputs


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  • message #37275
  • message #37275
  • message #37275
  • message #37275
  • message #37275
  • message #37275
Jacques Fournier, 05-08-2015 14:17
Jacques Fournier
Re : Hypoxylon?
yes most likely fuscum, based on the typical ascospores.
Are you happy with your macrophotos? Sure you can do better!
Cheers,
Jacques
Per Vetlesen, 05-08-2015 18:07
Re : Hypoxylon?
Hei Jacques

Thank you for replay
No, I'm not happy with my macrophotos! My only excuse is lack of skill and simple equipment. Picture 3, 4 and 5 are shot with DSLR through stereo microscope and I have great difficulty getting set it into focus and focus area gets very little. I am sorry and will try to improve.

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