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05-07-2025 12:38

Åge Oterhals

I found this pyrenomycetous fungi in pine forest o

01-06-2025 09:37

Charles Aron Charles Aron

Hi All, I found this Octospora growing with liver

06-07-2025 19:36

Castillo Joseba Castillo Joseba

me mandan el material de Galicia (España) recolec

07-07-2025 19:22

David Chapados David Chapados

Hi,Does anyone know what could this anamorph be?ht

02-07-2025 18:45

Elisabeth Stöckli

Bonsoir,Sur feuilles d'Osmunda regalis (Saulaie),

04-07-2025 20:12

Josep Torres Josep Torres

Hello.A fungus growing on the surface of a trunk o

20-06-2025 08:33

Josep Torres Josep Torres

Hello.Small, blackish, mucronated surface grains s

28-06-2025 16:00

Josep Torres Josep Torres

Hello.A tiny fungus shaped like globose black grai

04-07-2025 12:43

Castillo Joseba Castillo Joseba

me mandan el material seco de Galicia (España) 

03-07-2025 18:40

Castillo Joseba Castillo Joseba

me mandas el material seco de Galicia (España) re

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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.