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19-02-2009 09:44

Alain GARDIENNET Alain GARDIENNET

Bonjour, I've made a recolt of Mytilinidion acico

18-02-2009 21:54

Roland Labbé

Bonjour ! Voici une planche d'un Asco qui m'est

17-02-2009 17:34

Enrique Rubio Enrique Rubio

Cher tous: Peut etre cette Nectria qui a un hemis

16-02-2009 14:24

Patrice LEFRANCOIS

Bonjour, Voilà j'ai trouvé des nectrias sur un

16-02-2009 04:49

Roland Labbé

Bonjour ! Voici une planche probable d'une Orbi

16-02-2009 04:46

Roland Labbé

Bonjour ! Voici une planche probable d'une Orbi

14-02-2009 16:01

Hans-Otto Baral Hans-Otto Baral

Hello Hyalorbilia anonyma (Rehm) (= Pithyella a

14-02-2009 09:08

Jean Pierre Dechaume Jean Pierre Dechaume

Tout d'un coup des choses sur branches mortes d'Ab

12-02-2009 22:01

Hans-Otto Baral Hans-Otto Baral

Today I received from Pablo fresh Lambertella on O

10-02-2009 22:18

Jean Pierre Dechaume Jean Pierre Dechaume

Bonsoir à tous, S'il vous plaît, sauriez-vous m

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Leptosphaeria ?
Garcia Susana, 14-03-2016 11:58
Hi,

I found this ascomycete growing in sheet of Platanus.
Pseudotecios are inmersed, with a size of 150 um in diameter, and with a small neck about 40um.
Spores with 5 SEPTA.
I think it is Leptosphaeria, but I could not determine the species.
Any idea?


Thanks, greeting


Susana

  • message #41509
  • message #41509
  • message #41509
Luc Bailly, 14-03-2016 22:56
Luc Bailly
Re : Leptosphaeria ?
Oh, strange. The spores make me think of Phaeosphaeria (Leptosphaeria p.p.) vagans, but that species is only noted on monocots, and only Poaceae.

Either there's some weed leaf coming along with the Platanus leaf, and sticked on it, otherwise I have no clue.
Or maybe someone with more knowledge will find the solution...

Cheers - LUC.
Garcia Susana, 15-03-2016 08:07
Re : Leptosphaeria ?
Hola Luc

No, there was no grass stuck to the sheet. The species was immersed in platanus leaf. The sheet had many "black spots", the majority belonged to Pleospora herbarum. I found 2 perithecia of this type.
To be P. vagans should have spores with some longitudinal septum, and I not saw it. In any case, it would seem more to P. nigrans, but here the spores are greater.

Saludos
Susana