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12-06-2026 14:50

François Freléchoux François Freléchoux

Bonjour, Voici la brève description d'une Mollis

10-06-2026 21:16

François Freléchoux François Freléchoux

Bonsoir,Le dernier du jour, en attendant votre avi

11-06-2026 16:24

Ethan Crenson

Hi all, Recently, a friend found this Orbilia in

11-06-2026 19:01

William Slosse William Slosse

Hello all,In an attempt to make a culture of a sus

11-06-2026 19:03

Nicolas VAN VOOREN Nicolas VAN VOOREN

Chers membres d'Ascofrance,Le site sera placé en

10-06-2026 23:08

éric ROMERO éric ROMERO

Bonjour tous, Je vous propose un Mollisia trouvé

09-06-2026 18:32

Camille Mertens

Sur morceau de roseau immergé 0,5 - 0,7 mm de dia

10-06-2026 12:54

Steve Clements

Bonjour encore, Pouvez-vous m'aider, s'il vous pl

10-06-2026 21:07

François Freléchoux François Freléchoux

Toutes les tiges de gentianes jaunes de l'an passÃ

10-06-2026 13:41

François Freléchoux François Freléchoux

Bonjour à nouveau, Voici une trouvaille d'hier.

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Cryptovalsa sp. ?
Stefan Blaser, 27-04-2012 11:24
Hello everybody

I tried to work out a name for a polysporous diatrypaceae. The best Literature I found and had access to was:
Vasilyeva and Stephenson 2005, Pyrenomycetes of the Great Smoky Mountains National Park II., Fungal Diversity 19:189-200

With this I tend to name my fungus Cryptovalsa mori (=Cryptovalsa nitschkei) or Cryptovalsa protracta alternatively.
I hope that someone could give me confirmation or else could help me on a better track if I'm wrong. I would also be glad to have more Literature on Cryptovalsa species, especially on the above, or Pictures.
Description: Stroma within the bark, penetrating the bark surface only by ostioles or through small cracks. Single Perithecia about 600-800 micometer diameter.
Micro: Spores allantoid, yellowisch-brown, (9)-10-11-(12) x 2.0-2.5, Ascal apparatus very faintly bluish in Iodine.
Ecology: Branch of Acer (platanoides or pseudoplatanus)

Thanks for any Input
Stefan

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Björn Wergen, 27-04-2012 11:49
Björn Wergen
Re : Cryptovalsa sp. ?
Hi,

this is surely Cryptovalsa protracta. I have found this species twice (2010, 2012), both on dead deciduous twigs.  

If you wish to have pics of it, I can send you via email.

regards,
björn
Stefan Blaser, 27-04-2012 13:00
Re : Cryptovalsa sp. ?
Hallo Björn

Thanks very much. I would like to have a picture of your collection and I would be very glad if you tell me with which Literature you identified your specimens. According to the Vasilyeva Article, Cryptovalsa protracta should have Spores <10 while C. mori would be the one with Spores up to 12 (What were your measurements?). I gather that there seems to be a bit of a mess in species delimitation in Cryptovalsa and Diatrypella.

Gruss
Stefan
Björn Wergen, 27-04-2012 20:24
Björn Wergen
Re : Cryptovalsa sp. ?
I think that I also have the Vasilyeva paper somewhere, but I didn't ever hear something about a C. mori. So I call the 32spored pyrenomycete with characteristic macroscopic features "C. protracta" with spores around 10-12x2-3µm. 

I will send you photos.

regards,
björn