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21-09-2025 14:49

Ethan Crenson

Hi all, I am at a foray in central New York stat

23-09-2025 13:31

Thomas Læssøe

https://svampe.databasen.org/observations/10534623

18-09-2025 08:35

Edmond POINTE Edmond POINTE

Bonjour amis mycologues,Trouvé sur moquette de ch

22-09-2025 20:31

Yanick BOULANGER

BonsoirVoici un ascomycète récolté au alentour

16-09-2025 12:53

Philippe PELLICIER

Pézizes de 1-4 mm, brun grisâtres, sur les capsu

22-09-2025 09:14

ruiz Jose

Hola, me pasan este asco en cáscara de nuez. Esp

19-09-2025 23:55

Jorge Hernanz

Estoy buscando y no encuentro el siguiente artícu

19-09-2025 18:29

Castillo Joseba Castillo Joseba

De ayer  recolectadas en Kk de vacunoHabia ejempl

17-09-2025 19:43

Philippe PELLICIER

Sur branche morte de Mélèze. Les ascospores sphÃ

18-09-2025 19:40

Sylvie Le Goff

BonjourPensez vous que le genre Pulvinula puisse c

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Pyrenomycet on hardwood.
Per Marstad, 16-12-2017 14:18
Per MarstadI would like a name on this. 2 mm in diameter, dark brown, growing on dark brown mycel (subiculum). Spores 25-30 x 10 my. Asci 200x10.
  • message #51630
  • message #51630
Vizzini Alfredo, 16-12-2017 14:29
Re : Pyrenomycet on hardwood.
Hi,
Rosellinia?
Alf
Jacques Fournier, 16-12-2017 14:42
Jacques Fournier
Re : Pyrenomycet on hardwood.
Hi Per, if you want a name you need to be more explicit because there is more than one Rosellinia spp.
Is 2 mm the diameter of a single stroma?
What is the host?
dimensions and shape of the apical apparatus, in iodine
Do the spores have a germ slit? Lenght, location and shape are needed.
Do ascospores have cellular appendages and/or slimy caps? Is there a slimy sheath around ascospores?, to be checked in India ink.
With this information you should find a name in Petrini's papers, Sydowia 41 and 44, available on the internet.
Good luck,
Jacques
Per Marstad, 16-12-2017 22:10
Per Marstad
Re : Pyrenomycet on hardwood.
I have found Rosellinia aquila in British Ascomycetes which seems to be my fungus!
It has been found a few times here in Norway before.
Thank you for help.
Per.