17-09-2025 19:43
Philippe PELLICIERSur branche morte de Mélèze. Les ascospores sphÃ
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Jason Karakehian
Our revision of Marthamycetales (Leotiomycetes) is
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Philippe PELLICIERPézizes de 1-4 mm, brun grisâtres, sur les capsu
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Enrique Rubio
Hi to somebody.I would like to know your opinion o
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Nicolas VAN VOOREN
Hello.I'm searching for a digital copy of the seco
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Philippe PELLICIERApothécies petites jusquà 3 mm, oranges, avec de
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Thomas Flammerdark brown apothecia, splitIKI-Spores biguttulate
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
Dok1-0001.pdf
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