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19-03-2025 17:47

Philippe  Larue Philippe Larue

Bonjour à tous, chaque année à l'approche du p

23-03-2025 10:09

Michel Hairaud Michel Hairaud

Bonjour, Hi to everyone, The English text is avail

23-03-2025 01:00

Juuso Äikäs

These little black pyrenos were growing on bark of

20-03-2025 22:35

Yanick BOULANGER

BonsoirJ'ai récupéré cet ascomycète d'un amiJe

19-03-2025 09:29

Michel Hairaud Michel Hairaud

Bonjour, Récolté sur hépatiques colonisant un

21-03-2025 19:32

Benko Gabor Benko Gabor

Dear Ascofrance,I would like to ask for your help.

16-03-2025 11:04

Nicolas VAN VOOREN Nicolas VAN VOOREN

Bonjour.Je cherche une copie de l'article suivant:

18-12-2024 17:57

Lothar Krieglsteiner Lothar Krieglsteiner

on dead leaves lying on the ground. The large coni

18-03-2025 22:48

Rudenko Yevhen

Hello! I am asking for help from the community in

17-03-2025 19:44

Karen Poulsen

Hi all I found this very tiny, roundish to cushio

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Pyreno with interesting spores on ?Rubus
Juuso Äikäs, 25-04-2023 15:56
These little black pyrenos were growing yesterday on a herbaceious stem (possibly Rubus idaeus).

The spores are asymmetrically 2-celled, have a setula at both ends and measure 8.2 - 10.3 × 2.7 - 2.9 µm. The asci are IKI negative and measure 37 - 41 × 6.5 - 7.5 µm.

Maybe someone knows what this is?
  • message #75941
  • message #75941
Lothar Krieglsteiner, 25-04-2023 16:01
Lothar Krieglsteiner
Re : Pyreno with interesting spores on ?Rubus
Hello Juuso,
although your spore measures are a bit small: perhaps compare with Gnomonia rubi.
Yours, Lothar
Enrique Rubio, 25-04-2023 16:35
Enrique Rubio
Re : Pyreno with interesting spores on ?Rubus
Maybe Anisogramma vepris.
Juuso Äikäs, 25-04-2023 17:14
Re : Pyreno with interesting spores on ?Rubus
Thank you Lothar and Enrique for the suggestions! 

I checked those species and it seems Anisogramma vepris is a good fit. There are some Finnish findings of it under the name Cryptodiaporthe vepris, all on Rubus. Apparently this one has quite a bunch of synonyms, but Anisogramma vepris is the current name.
Enrique Rubio, 25-04-2023 17:21
Enrique Rubio
Re : Pyreno with interesting spores on ?Rubus
The spore appendages are often not as visible as in your photos.
Regards.
Juuso Äikäs, 25-04-2023 17:53
Re : Pyreno with interesting spores on ?Rubus
Yeah, in many pics I found they weren't at all visible. The description in fungi.myspecies.info seems to fit though: "often with a short bristle-like mucous appendage to ca 5 µm in length at each end (visible in water mounts)". Maybe the "setula" term I used isn't entirely fitting.
Enrique Rubio, 25-04-2023 18:00
Enrique Rubio
Re : Pyreno with interesting spores on ?Rubus
https://www.centrodeestudiosmicologicosasturianos.org/?p=28214
In this collection that I studied, I could not see them even though I looked for them persistently.