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Cryptovalsa sp. ?
Stefan Blaser,
27-04-2012 11:24
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
Björn Wergen,
27-04-2012 11:49
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
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
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
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
I will send you photos.
regards,
björn