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Wim de GrootWe found this hymenoscyphus on rubus fruticulosis.

11-09-2025 16:57
Our revision of Marthamycetales (Leotiomycetes) is

13-09-2025 14:01
Thomas Flammerdark brown apothecia, splitIKI-Spores biguttulate

10-09-2025 23:53

Found on Robinia pseudoacasia together with Diapor

10-09-2025 17:18

Hola, encontre este estiercol de vaca estos apotec

02-09-2025 11:34
Thomas Læssøehttps://svampe.databasen.org/observations/10527903
Black apothecia with yellow "matter" on Sorbus
Edvin Johannesen,
08-07-2019 19:58

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.
Miguel Ángel Ribes,
08-07-2019 22:21

Re : Black apothecia with yellow "matter" on Sorbus
Hi Edvin
Perhaps two diferent fungis? The yellow one parasiting an old pyreno?
Miguel Á. Ribes
Perhaps two diferent fungis? The yellow one parasiting an old pyreno?
Miguel Á. Ribes
Edvin Johannesen,
09-07-2019 00:07

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.