22-04-2026 01:06
Richard VALERI
Bonjour à tous.Je vous présente cette Nectria s.
21-04-2026 13:36
Gernot FriebesHi,I am out of ideas for this one. I collected Sal
21-04-2026 13:19
Gernot FriebesHi,this Lophodermium on Typha has ascospores measu
21-04-2026 13:05
Gernot FriebesHi,this hyphomycete feels familiar but I was not a
20-04-2026 22:00
Malcolm Greaves
These pale yellow, hairy ascos were growing on cul
19-04-2026 21:23
Steve ClementsBonjour, I found this anamorphic fungus on old pl
19-04-2026 20:46
Steve Clements1 mm diameter approx spherical conidiophores on pl
12-04-2026 17:56
Hardware Tony
Found on dead stems in February earlier this year
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.