18-05-2026 12:43
Sylvie Le GoffBonjour à tousPuis je avoir votre aide sur ce que
18-05-2026 10:13
Lieve Deceuninck
Dear forum members,I identified this as the teleom
17-05-2026 19:05
Thomas FlammerI have found this tiny 200 ym cup shaped apothecia
17-05-2026 16:41
Margot en Geert VullingsWe found this Lachnum on an old Rubus stem.Fruitbo
05-04-2026 22:46
Lothar Krieglsteiner
on wood of Ceratonia, Algarve, 3.4.2026.The color
15-05-2026 13:33
Sylvie Le GoffBonjour à tousJe serais très reconnaissante enve
16-03-2011 14:31
roman vargas albertoHi. I would like some opinion about this Peziza
14-05-2026 05:36
Ethan CrensonHi all, I haven't paid much attention to Lachnu
10-05-2026 23:17
Andreas Gminder
Hello,today we found in a moist steep decidous for
Nectria on Diatrypella quercina
Jenny Seawright,
12-04-2015 21:50
Hello all, Back in the Nectria minefield but hoping that the host might narrow the possibilities a bit. The only possibility in Ellis seems to be Nectria magnusiana but .......!
On Diatrypella quercina - orange-red to red perithecia collapsing inward when old, the apices pointed and slightly darker. I couldn't manage a section of a perithecium but the spores were warted, hyaline, 0-1 septate, 12-15 x 5-6(7) µm.
Peridium: Aqua + KoH = purple, aqua + Cotton Blue in Lactophenol = yellow.
With regards,
Jenny
Björn Wergen,
13-04-2015 00:30
Re : Nectria on Diatrypella quercina
Hi Jenny,
I would call this collection Cosmospora sp., there may be several species growing on dead Diatrype / Diatrypella (e.g. Cosmospora diatrypicola), but its always not easy with this genus.
regards,
björn
I would call this collection Cosmospora sp., there may be several species growing on dead Diatrype / Diatrypella (e.g. Cosmospora diatrypicola), but its always not easy with this genus.
regards,
björn
Chris Yeates,
13-04-2015 00:52
Re : Nectria on Diatrypella quercina
I think Björn has put the situation well - I have had to rename a lot of my collections on Diatrypella as "Cosmospora sp." It would be fascinating to see how mycologists in a hundred years time view our struggles with these brightly coloured and attractive (but difficult) fungi. They will probably be able to sequence their finds in the field with ease . . . .
Chris
Chris
Björn Wergen,
13-04-2015 01:02
Re : Nectria on Diatrypella quercina
Yes, like action heroes with special black-rimmed glasses, showing all genetical details on a display...
Jenny Seawright,
13-04-2015 20:19
Re : Nectria on Diatrypella quercina
Thank you Bjorn and Chris - must remember to walk past the next Nectria with eyes carefully averted!
"Yes, like action heroes with special black-rimmed glasses, showing all genetical details on a display..."
Can just imagine that!
"Yes, like action heroes with special black-rimmed glasses, showing all genetical details on a display..."
Can just imagine that!
Stoykov Dimitar,
22-04-2015 16:06
Re : Nectria on Diatrypella quercina
Yes, it is difficult,
what is your opinion of Dialonectria (D. cf episphaeria),
in spite of its strange appearance. Regards
what is your opinion of Dialonectria (D. cf episphaeria),
in spite of its strange appearance. Regards
Christian Lechat,
22-04-2015 21:19
Re : Nectria on Diatrypella quercina
Hi Jenny,
Your fungus can't be the genus Cosmospora because its asexual state is fusarium-like, this genus is restricted to the species with acremonoium-like or verticillium-like.
Molecular data of the pecies occuring on Diatrypella quercina indicate that is the genus Dialonectria and it would be necessary to name it Dialonecria magnusiana or Fusarium!!
Regards,
Christian
Your fungus can't be the genus Cosmospora because its asexual state is fusarium-like, this genus is restricted to the species with acremonoium-like or verticillium-like.
Molecular data of the pecies occuring on Diatrypella quercina indicate that is the genus Dialonectria and it would be necessary to name it Dialonecria magnusiana or Fusarium!!
Regards,
Christian
Jenny Seawright,
22-04-2015 23:21
Re : Nectria on Diatrypella quercina
Thank you Dimitar for re-activating my query, and even bigger thanks to Christian for confirming my initial tentative identification and providing the most recent name.
With regards,
Jenny
With regards,
Jenny