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19-03-2026 18:25

William Slosse William Slosse

Good evening everyone, On 18/03/26 I found a few

19-03-2026 19:34

Filip Fuljer Filip Fuljer

Hello everyone,a few days ago I collected this str

17-03-2026 10:09

François Freléchoux François Freléchoux

Bonjour, Voici la description rapide d'un petit d

19-03-2026 15:58

Stefan Blaser

Hello everybody, I hope for some hints... Macro:

19-03-2026 17:50

Enrique Rubio Enrique Rubio

Hi to everybodyThese thiny, blackish pseudothecia

18-03-2026 13:09

Khomenko Igor Khomenko Igor

I recently examined Celtis occidentalis branches

17-03-2026 19:41

Bernard CLESSE Bernard CLESSE

Bonsoir à toutes et tous,Pourriez-vous m'aider à

18-03-2026 17:22

Katarina Pastircakova

Hi there,I'm looking for the following literature:

19-03-2026 10:56

Thomas Læssøe

https://svampe.databasen.org/observations/10505643

27-02-2026 11:21

Yannick Mourgues Yannick Mourgues

Hi to all. Here is a specie that can may be relat

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Ascomycete with Diaporthe and Gnomonia Characteristics
Peter Thompson, 16-01-2013 22:43
Happy New Year to you all.

I have found a sample of an ascomycete which has a mixture of characteristics associated with the genera Diaporthe and Gnomonia, as follows:
Diaporthe - Growing on a woody substrate (Lonicera periclymenum) and black stromatic lines surrounding the fruit bodies.
Gnomonia - Perithecia with ostiolar 'necks' extending well above the substrate and spores with short appendages at each end.
I have attached a photograph of the fruit bodies and a sketch of the microscopy.

I wonder if anyone might know the identity of the fungus.
Thank you,
Peter.
  • message #21208
  • message #21208
Alain GARDIENNET, 16-01-2013 23:11
Alain GARDIENNET
Re : Ascomycete with Diaporthe and Gnomonia Characteristics

Dear Peter,
If the host is really Lonicera periclymenum, it could be interesting.
Are you sure it is Lonicera ? Could it be Hedera helix ? Because it looks like Diaporthe hederae.
Alain   

Peter Thompson, 17-01-2013 00:09
Re : Ascomycete with Diaporthe and Gnomonia Characteristics
Hello Alain,

Thank you for your reply.

Yes, Hedera helix was also growing at the same location. At the time, I checked for any horizontal outgrowths from the dead stems and did not find any, so convinced myself that Lonicera was more likely.

I see that the microscopy matches Diaporthe hederae very closely. I think that I must have misidentified the substrate.

Best wishes,
Peter.

Alain GARDIENNET, 17-01-2013 00:19
Alain GARDIENNET
Re : Ascomycete with Diaporthe and Gnomonia Characteristics
Yes probably.
Thank s for your post, it's a nice photo of Diaporthe hederae.
Alain