
23-09-2025 13:31
Thomas Læssøehttps://svampe.databasen.org/observations/10534623

15-10-2025 16:39

These tiny (0.2-0.6 mm), white, pulvinate apotheci

03-10-2025 13:44

Hello, Found by Laurens van der Linde on Populus

13-10-2025 19:05
Louis DENYBonjour forumSur tronc décortiqué de feuillu x,

11-10-2025 20:27

Found on a barked branch, 14 mm in diameter, of Ro

09-10-2025 22:14
S. RebeccaWe just had the Bavarian Mycology Conference in Au

10-10-2025 00:49
Ethan CrensonHello all, This was found last weekend on a hardw
Synarthonia ochracea
Gonzalez Garcia Marta,
07-03-2022 12:37
The thallus is unnoticeable with black lirelas with well developed carbonaceous excipulum and with the hymenium exposed to the outside. On aging, these lirelas show an orange pruina visible only microscopically (40x) that is K+ purple. K- hymenophore. Spores are hyaline of 2-4 cells, with the second cell larger than the apical 17-20 x 4 microns. When the spores mature inside the asci they turn brown. They present then, a coarse verrucous exosporium. I would appreciate your opinions.
Thank you very much.
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Franz Berger,
07-03-2022 13:09

Re : Synarthonia ochracea
From where is it? Substrate?
This looks like Opegrapha ochrocheila, now Alyxoria o.
Franz
This looks like Opegrapha ochrocheila, now Alyxoria o.
Franz
Gonzalez Garcia Marta,
07-03-2022 13:25
Re : Synarthonia ochracea
Hello Franz
The collection is from Tineo (Asturias- North of Spain), but the friend who gave me the material could not be sure if it was Betula or Castanea.
By touch, I think it is Betula, and the absence of a thallus could coincide with the fact that it parasitized Graphis, although it is risky to say so.
The collection is from Tineo (Asturias- North of Spain), but the friend who gave me the material could not be sure if it was Betula or Castanea.
By touch, I think it is Betula, and the absence of a thallus could coincide with the fact that it parasitized Graphis, although it is risky to say so.
Franz Berger,
07-03-2022 19:21

Re : Synarthonia ochracea
Ist definetily Alyxoria ochrocheila. An autotrophic lichen, the thallus is the same like Graphis. Thallus looks damaged by snails. Not parasitic!
Substrate supposed Castanea. Betula bark normally is to acid forAlyxoria, and also Graphis
Yours Franz
Substrate supposed Castanea. Betula bark normally is to acid forAlyxoria, and also Graphis
Yours Franz
Gonzalez Garcia Marta,
07-03-2022 19:50
Re : Synarthonia ochracea
Muchas gracias Franz. Quedo muy agradecida.
Saludos.
Saludos.