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13-09-2025 14:10

Wim de Groot

We found this hymenoscyphus on rubus fruticulosis.

13-09-2025 15:43

Edmond POINTE Edmond POINTE

Bonjour Christian,J'ai trouvé deux spores ressemb

11-09-2025 16:57

Jason Karakehian Jason Karakehian

Our revision of Marthamycetales (Leotiomycetes) is

13-09-2025 14:01

Thomas Flammer

dark brown apothecia, splitIKI-Spores biguttulate

10-09-2025 23:53

Marcel Heyligen Marcel Heyligen

Found on Robinia pseudoacasia together with Diapor

10-09-2025 17:18

Blasco Rafael Blasco Rafael

Hola, encontre este estiercol de vaca estos apotec

02-09-2025 11:34

Thomas Læssøe

https://svampe.databasen.org/observations/10527903

07-09-2025 08:19

Josep Torres Josep Torres

Hello.Tiny pinkish discomycetes, photographed and

09-09-2025 12:07

Edmond POINTE Edmond POINTE

Bonjour amis mycologues,Trouvé sur moquette de ch

08-09-2025 19:07

ruiz Jose

Hola me pasan esta recolecta en madera de fraxinus

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Black apothecia with yellow "matter" on Sorbus
Edvin Johannesen, 08-07-2019 19:58
Edvin Johannesen
Hi,

These small apothecia were growing on dead Sorbus wood. Hymenium greyish. Excipulum partly covered with yellow "matter" which dissolves and turns purple in KOH (but apothecia without the yellow matter do not show a ionomidotic reaction). Excipulum cells greenish in KOH, consisting of bulbous/clavate, hair-like cells. Spores 9-10 x 2-2.5 my, ellipsoid, possibly becoming 1-septate, with a few guttules (?) - very few mature spores seen. Asci IKI-.

Any suggestion?

Thanks and regards.
  • message #58447
  • message #58447
  • message #58447
  • message #58447
  • message #58447
Miguel Ángel Ribes, 08-07-2019 22:21
Miguel Ãngel Ribes
Re : Black apothecia with yellow "matter" on Sorbus
Hi Edvin

Perhaps two diferent fungis? The yellow one parasiting an old pyreno?

Miguel Á. Ribes
Edvin Johannesen, 09-07-2019 00:07
Edvin Johannesen
Re : Black apothecia with yellow "matter" on Sorbus
No old pyreno here. There are only black apothecia. But I will will check what appears to be remnants of a subiculum.  Thanks.