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25-04-2023 15:56

Juuso Äikäs

These little black pyrenos were growing yesterday

30-03-2013 21:25

François Valade François Valade

HelloA small yellow Bryoscyphus sp? on moss, Pleur

24-04-2023 21:33

Ismael Wind

This example was on oenothera. Spores are about 33

24-04-2023 19:26

Enrique Rubio Enrique Rubio

Hi my friendsI'd like to know your opinion on this

24-04-2023 16:54

Yves Antoinette

Bonjour, je pense avoir trouvé Tarzetta cupularis

24-01-2023 23:30

Josep Torres Josep Torres

Hola.Una Botryosphaeriaceae sobre la corteza de un

21-04-2023 17:13

Hardware Tony Hardware Tony

Wonder if anyone can help here with this species w

03-05-2021 18:44

David Malloch David Malloch

Hello everyone, I have been finding this fungus e

22-04-2023 19:03

Juuso Äikäs

A few days ago I found a Sirococus-like growth on

22-04-2023 10:46

Vasileios Kaounas Vasileios Kaounas

Found in soil, in forest with Castanea and Fagus.

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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.