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Gernot Friebes

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Rustroemia firma?
VASILEIOS KAOUNAS, 09-12-2008 07:15
it was found in putrid branch from Quercus ilex.
Ascospores 19,3-23,0*4,4-4,9 ìm, Q=4,4-5,0
  • message #5972
VASILEIOS KAOUNAS, 09-12-2008 07:16
Re:Rustroemia firma?
spores foto
  • message #5973
Hans-Otto Baral, 09-12-2008 13:44
Hans-Otto Baral
Re:Rustroemia firma?
Dear Vasileios

that is a good question. R. firma has wider spores (*15-20 x 5-6.5 µm). Yours look too narrow (though alive), so I don't think it is R. firma. Could you search for overmature spores, do they get 3 septa? Probably they procude small conidia like typical R. firma. You could also look for the excipulum, is it of thin-walled prismatic cells or gelatinised?

Asci are probably strongly blue in IKI and with croziers, but this should also be checked.

Zotto