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21-12-2025 12:34

Castillo Joseba Castillo Joseba

me mandan el material seco de Galicia (España) 

20-12-2025 23:08

Patrice TANCHAUD

Bonsoir, récolte sur sol sablonneux dans l'arriÃ

21-12-2025 09:32

Josep Torres Josep Torres

Hello.A tiny ascomycete found embedded in wood in

21-12-2025 01:54

David Chapados David Chapados

Hi,Would it be possible to find the species with t

20-12-2025 15:47

Mirek Gryc

Hi.These grew on pine wood that was heavily covere

20-12-2025 10:49

Mirek Gryc

Hi. „I doubt it is possible to identify this ti

18-12-2025 21:17

Pol Debaenst

The identification took me to Byssonectria deformi

15-12-2025 07:09

Danny Newman Danny Newman

indet. Rutstroemiaceae sp. on unk. fallen leavesMc

19-12-2025 10:10

Patrice TANCHAUD

Bonjour, récolte réalisée en milieu dunaire, a

18-12-2025 17:23

Bruno Coué Bruno Coué

Bonjour,je serais heureux d'avoir votre avis sur c

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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