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22-01-2019 11:43

Joop van der Lee

Found on horse dung.Perithecia: 371x232 um; thin p

18-01-2019 23:00

Joop van der Lee

Found on cow dung.Apothecia at maturity surrounded

21-01-2019 14:33

Juuso Äikäs

I photographed this in early spring a couple years

19-01-2019 00:38

Elsa Sousa

Good evening,I found this on leaf debris, almost Q

18-01-2019 18:10

Lothar Krieglsteiner Lothar Krieglsteiner

... near Spraitbach (Baden-Wuerttemberg n. Schwäb

20-01-2019 12:13

Castillo Joseba Castillo Joseba

Pongo una Peziza, localizada el viernes en bosque

19-01-2019 18:53

Blasco Rafael Blasco Rafael

Hola, alguno de ustedes conoce este hongo localiza

19-01-2019 19:58

BERNARD CLESSE BERNARD CLESSE

Bonsoir tout le monde,J'ai trouvé hier, sur branc

18-01-2019 22:14

Edvin Johannesen Edvin Johannesen

Dear all, This nectriaceous species was growing e

18-01-2019 18:17

Lothar Krieglsteiner Lothar Krieglsteiner

... near Spraitbach (Baden-Wuerttemberg n. Schwäb

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Hypoxylon macrocarpum on Corylus?
Marc Detollenaere, 24-10-2018 19:57
Marc Detollenaere

On Carpinus we found some multi-peritheciate stromata with a blue metallic shine.Stromata were mostly immersed.With KOH 5% a greyish pigment was extracted and we could also observe a slightly dehiscent perispore.Spores measured 10-11x4µ.


We thought it matched quite well with the description of Hypoxylon macrocarpum from Pouzar(1978).


Could you agree?

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  • message #54952
  • message #54952
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Yannick Mourgues, 24-10-2018 21:55
Yannick Mourgues
Re : Hypoxylon macrocarpum on Corylus?
Hi.

Yes, I think you're right. See Jacques Fourier's description : http://pyrenomycetes.free.fr/hypoxylon/html/Hypoxylon_macrocarpum.htm

Yannick
Eduard Osieck, 25-10-2018 22:27
Re : Hypoxylon macrocarpum on Corylus?
Hi Marc,
The perithecia should be more or less cylindrical (see next issue of Coolia).
Eduard
Marc Detollenaere, 26-10-2018 00:01
Marc Detollenaere
Re : Hypoxylon macrocarpum on Corylus?

Hello Eduard,


If it not macrocarpum, what would you suggest?

Marc Detollenaere, 26-10-2018 20:31
Marc Detollenaere
Re : Hypoxylon macrocarpum on Corylus?
Merci Yannick
Thomas Læssøe, 29-10-2018 11:58
Re : Hypoxylon macrocarpum on Corylus?
I would suggest a species of Nemania. Perithecial contours are visible on the stromatal surface and the ostioles would appear to be papillate and the ascus plug is too long to fit Hypoxylon
cheers
Thomas
Marc Detollenaere, 30-10-2018 07:03
Marc Detollenaere
Re : Hypoxylon macrocarpum on Corylus?
Hello Thomas,

I think you are right. I have been misleaded by the apical apparatus.
That also explains the minimal reaction on KOH.
I discussed the matter with Bernard Declercq who thinks is Nemania serpens var. colliculosa.

Marc