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07-08-2023 14:30

Juuso Äikäs

I found these gray Pyrenopezizas growing on a deca

07-08-2023 19:32

Juuso Äikäs

These little black pyrenos were growing on hare dr

01-08-2023 14:47

Pavol Palo

Hello friends, may I ask you for help ? I would n

06-08-2023 10:26

Maria Plekkenpol Maria Plekkenpol

Hello,On a small twig of probably Betula there wer

03-08-2023 13:31

Mathias Hass Mathias Hass

Hi, On attached dead twig of Castanea sativa. Fou

05-08-2023 20:38

Thierry Blondelle Thierry Blondelle

Bonjour,Voici une récolte sur branche de hêtre d

04-08-2023 20:34

Thorben Hülsewig

Hi there, i'm looking for the following literat

03-08-2023 23:59

Mathias Hass Mathias Hass

Hi, Found June, on old graveyard, Copenhagen, Den

22-01-2020 11:51

Bernard Declercq Bernard Declercq

Hi,Collected on twigs of Castanea sativa:Pycnidia

02-08-2023 16:55

Enrique Rubio Enrique Rubio

Can you think of any answer to these very numerous

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Pyrenopeziza on Cirsium
Juuso Äikäs, 07-08-2023 14:30
I found these gray Pyrenopezizas growing on a decaying stem of Cirsium sp. (or something similar).

Asci 8-spored, with croziers, IKI+(bb). Paraphyses rather wide, with low-refractive guttules. Spores 8.9 - 9.8 × 1.8 - 2.2 µm.

Ideas about the species?
  • message #76692
  • message #76692
Hans-Otto Baral, 07-08-2023 20:54
Hans-Otto Baral
Re : Pyrenopeziza on Cirsium
I use to identifiy such "characterless" collections as P. atrata.

Zotto
Juuso Äikäs, 07-08-2023 21:25
Re : Pyrenopeziza on Cirsium
Ok, thanks. I could name this as that. And yes, it is pretty anonymous-looking, just the guttules in the paraphyses stood out for me.
Hans-Otto Baral, 07-08-2023 21:30
Hans-Otto Baral
Re : Pyrenopeziza on Cirsium
I suppose these guttules are not very consistent, even elongate faintly refractive VBs are possible.