Black ascomycete on Fraxinus - Forum ASCOFrance

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Black ascomycete on Fraxinus

Pavol Palo, 12-03-2014 20:26

Hello friends,

may I ask you for help ? I would need some idea or opinion.

Fruitbody: on dead deciduous branches (Fraxinus sp.) diam. 0,2-0,5 mm.

Ascii: 40-45 x 3-4 µm ... 8 spores - biserial

Spores: 4-6 x 2-2,5 µm

Paraphyses: diam. 1-2 µm ... >100 µm

Subiculum diam. to 10 µm

Regards

Pavol

Christian Lechat, 12-03-2014 20:45

Re : Black ascomycete on Fraxinus

This looks like Nitschkia confertula which is known on Fraxinus but the size of ascospore does not fit.
Christian

Peter Püwert, 12-03-2014 20:51

Re : Black ascomycete on Fraxinus

Hello Pavol,
in my opinion is this Nitschkia confertula (Schw.) Nannf. The spores may a little longer.
Greetings Peter.

Pavol Palo, 12-03-2014 21:33

Re : Black ascomycete on Fraxinus

Thank you very much

Pavol Palo, 12-03-2014 21:36

Re : Black ascomycete on Fraxinus

Thank you very much

p.s. I will try prepare new micro (mayby this is immature)

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