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Calonectria (?) on wood
Martin Bemmann, 05-07-2011 11:54
Martin BemmannBonjour,

last weekend I found these minute ascocarps (0.25 mm dm.) on an indet. piece of wood stained by Chlorociboria (some immature apothecia were present).
The spores are fusiform without clear septa and filled with small oildrops.
Is a determination possible without culture?

Best regards

Martin
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Hans-Otto Baral, 05-07-2011 12:45
Hans-Otto Baral
Re : Calonectria (?) on wood
Hi Martin

did you consider Tubeufia cerea? I suspect if you add Melzer or CB you will clearly see the septa.

Zotto
Martin Bemmann, 05-07-2011 12:53
Martin Bemmann
Re : Calonectria (?) on wood
Yes indeed Zotto! This fits perfect!

Thanks,

Martin
erio camporesi, 07-07-2011 21:05
erio camporesi
Re : Calonectria (?) on wood
Hi Martin and Zotto,
   I think to have collected the same ascomycete, please see the attached photoes!


Erio
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Martin Bemmann, 07-07-2011 22:54
Martin Bemmann
Re : Calonectria (?) on wood
Ciao Erio,

most probably the same. I didn't find the time to check the septa, yet. Hope to do this at the weekend (in case something is left of the specimens....)

Cheers

Martin
erio camporesi, 08-07-2011 21:08
erio camporesi
Re : Calonectria (?) on wood

Ciao Martin, Hi Zotto,

 ok Martin.

  Erio


PS: in the macrophoto the ascomycete on the left is an Orbilia.

Martin Bemmann, 08-07-2011 22:51
Martin Bemmann
Re : Calonectria (?) on wood
Hyalorbilia I presume. There were also some on my collection but they were vanished the next day... :-(

Cheers,

Martin
Martin Bemmann, 09-07-2011 00:16
Martin Bemmann
Re : Calonectria (?) on wood
And here (as Zotto had predicted) the septa of the spores visible in CB.

Cheers

Martin
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erio camporesi, 09-07-2011 23:59
erio camporesi
Re : Calonectria (?) on wood
Grazie mille Martin, thank you very much Martin

  Erio
erio camporesi, 10-07-2011 21:25
erio camporesi
Re : Calonectria (?) on wood
Hi Martin,
   is it possible to locate the Hyalorbilia with these microphotoes?

  Erio
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Hans-Otto Baral, 10-07-2011 21:41
Hans-Otto Baral
Re : Calonectria (?) on wood
Hi Erio

Clearly an Orbilia (because of bifurcate  ascus base and capitate paraphyses), and obviously O. eucalypti (= O. alnea, = O. coccinella s. auct.)

Zotto
erio camporesi, 10-07-2011 21:43
erio camporesi
Re : Calonectria (?) on wood
Hi Zotto,
   thank you very much.

  
Erio