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White short-stipitate apothecia found on thin twig
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Rustroemia firma?
VASILEIOS KAOUNAS,
09-12-2008 07:15
Ascospores 19,3-23,0*4,4-4,9 ìm, Q=4,4-5,0
VASILEIOS KAOUNAS,
09-12-2008 07:16
Re:Rustroemia firma?
spores foto
Hans-Otto Baral,
09-12-2008 13:44
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
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