
07-03-2016 11:31
Gernot FriebesHi,this species, which I assume is an Amphisphaeri

08-03-2016 10:53
en una muestra de Phytolacca americana, en la que

07-03-2016 20:32
Garcia SusanaHi,I have found this pyrenomycete growing in needl

07-03-2016 22:36

Sur feuillusSpores 21,50-24,65 / 5,80 - 6,85

07-03-2016 18:52
Pavol PaloHi friends,I would need adviceIt growth of the don

06-03-2016 18:29
Thorben HülsewigHi there,today i found in the forest (Alnus), near

07-03-2016 11:28

Hallo all,would anyone have the following paper, p
Amphisphaeria sp.
Gernot Friebes,
07-03-2016 11:31
this species, which I assume is an Amphisphaeria, grows plentifully on a corticated branch of Fraxinus or Ulmus on the ground. I checked the paper by Wang et al. (2004) but couldn't find a species that fits well with this collection. The ascospores measure about 18–21 x 5,5–7 µm and appear to be smooth and without a sheath. Maybe someone has an idea!
Best wishes,
Gernot
Alain GARDIENNET,
07-03-2016 18:17
Re : Amphisphaeria on Fraxinus
Hi Gernot,
Have you looked towards Amphisphaeria umbrina (or A. cavata) ?
Alain
Gernot Friebes,
08-03-2016 12:26
Re : Amphisphaeria on Fraxinus
Thanks for your suggestion, Alain! I have no experience with A. umbrina but looking at the description and images in Wang et al. I feel like the ascospores of A. umbrina should be a bit darker brown than in my collection. Also it seems like the morphology of the ascomata is somewhat different but I think that could certainly vary to some degree...
Best wishes,
Gernot
Best wishes,
Gernot