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18-04-2024 18:52

éric ROMERO éric ROMERO

Bonjour, J'ai beoin d'éclairage(s) pour ce Daldi

13-04-2024 11:44

Riet van Oosten Riet van Oosten

Hello, Found by Laurens van der Linde, April 2024

16-04-2024 17:43

Giovanni ANTOLA Giovanni ANTOLA

Bonjour,Trouvé sous paille humide, autour d'un je

14-04-2024 20:04

Manak Roman

Hi all,I have two very similar finding last weeken

17-04-2024 10:44

Bernard CLESSE Bernard CLESSE

Juste à côté du cône avec "Hyphodiscus ayelii"

16-04-2024 22:53

Bernard CLESSE Bernard CLESSE

Bonsoir à toutes et tous,Pourriez-vous m'aider à

14-04-2024 22:58

B Shelbourne B Shelbourne

• Bactridium flavum (anamorph): Distinctive macr

15-04-2024 14:37

Eric Rousseau

Bonjour,Je sais que les cyphelles ne sont pas des

13-04-2024 21:10

B Shelbourne B Shelbourne

• Genus Cistella on dicots: Habitat, macro, hair

08-04-2024 19:57

Elisabeth Stöckli

Bonsoir,Récolté au bord du chemin, apothécie 0.

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Pyrenopeziza rubi?
Juuso Äikäs, 13-01-2022 16:33
An old Pyrenopeziza finding from my archive:

These were growing on a dead Rubus idaeus cane at the turn of June and July 2020. 

There were just a few pics of the spores, asci in IKI and excipululm. The spores measure 7.9 - 10.4 × 2.1 - 2.6 µm.

Is this enough to determine this as P. rubi or are there other alternatives?
  • message #71426
  • message #71426
Hans-Otto Baral, 13-01-2022 17:31
Hans-Otto Baral
Re : Pyrenopeziza rubi?
P. rubi or P. escharodes - i cannot say. Both are described with marginal, appressed hairs.

There is an interesting iodine reaction when pretreated with KOH and wahsed with water: Lugol and probably also Melzer give a distinct blue at the margin!  I am not sure if this distinguishes rubi from escharodes.
Juuso Äikäs, 13-01-2022 18:10
Re : Pyrenopeziza rubi?
Ok, thanks for the info! I'll have to keep that in mind until I find this again.