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05-06-2015 21:36

Peter Thompson

Hello Everyone,I have found some grey perithecia i

06-06-2015 15:00

Bernard CLESSE Bernard CLESSE

Bonjour à tous,Voici ce que je pense être un Das

06-06-2015 20:04

Chris Yeates Chris Yeates

Bonsoir tousFollowing my coming across "Psilachnum

06-06-2015 20:25

Quijada Luis

Hi all,I would like to know if somebody in the for

31-05-2015 20:17

Bernard CLESSE Bernard CLESSE

Bonsoir à tous,Je pense reconnaître ici Mollisia

06-06-2015 14:35

Blasco Rafael Blasco Rafael

Hola tengo esta Mollisia que en principio pensaba

06-06-2015 11:40

Bernard CLESSE Bernard CLESSE

Bonjour à tous,Juste pour confirmation d'un asco

05-06-2015 20:49

Peter Thompson

Hello Everyone,I am puzzled by black ascomycetes w

05-06-2015 19:24

Bernard CLESSE Bernard CLESSE

Bonsoir à tous,Pouvez-vous me donner une piste po

03-06-2015 22:05

Bernard CLESSE Bernard CLESSE

Bonsoir à tous,Pouvez-vous m'aider à identifier

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Possible Anthostomella on Glyceria maxima
Peter Thompson, 05-06-2015 21:36
Hello Everyone,

I have found some grey perithecia immersed beneath the epidermis of a dead stem of Glyceria maxima. Areas of the stem look quite grey from the fruit bodies, each with a clypeus surrounding it.

I guess that the fruit bodies are not fully mature, because of the colour of the perithecia and the hyaline spores, either with one large, central guttule or filled with many smaller guttules. Assuming, of course, that I have suggested the correct genus. 

The photo of the fruit bodies and a sketch of the microscopy are attached.

I can not identify a species which would grow on Glyceria. I wonder if anyone can assist?

Thank you,
With Best Wishes,
Peter.
  • message #36352
  • message #36352
Jacques Fournier, 06-06-2015 20:37
Jacques Fournier
Re : Possible Anthostomella on Glyceria maxima
Good evening Peter,
I suggest you take a look into Physalospora Niessl for a possible genus. The last account on this genus I know is that of Von Arx & Müller 1954 (Die Gattungen der amerosporen pyrenomyceten, p 162) but something may have been published more recently.
Cheers,
Jacques
Peter Thompson, 06-06-2015 23:28
Re : Possible Anthostomella on Glyceria maxima
Good Evening Jacques,

Thank you for your suggestion.

I shall investigate Physalospora, as you recommend. Not a genus which I am familiar with, I must admit.

With Best Wishes,
Peter.