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07-12-2025 22:43

Andreas Millinger Andreas Millinger

Good evening, tried to determine with Munks Valsa

07-12-2025 17:43

Malcolm  Greaves Malcolm Greaves

This Helvella was in mixed woodland. Uniform cupul

07-12-2025 16:07

Arnold Büschlen

Hallo, ich habe in einer Moos-Aufsammlung (epiohy

05-12-2025 17:33

Bruno Coué Bruno Coué

Bonjour, je serais heureux de recueillir votre avi

07-12-2025 09:24

Castillo Joseba Castillo Joseba

De la pasada semana en Galicia EspañaEn el suelo

06-12-2025 00:19

Viktorie Halasu Viktorie Halasu

Hello, would anyone have this article, please? An

04-12-2025 23:53

Malcolm  Greaves Malcolm Greaves

Is there an up to date Anthracobia key available?T

04-12-2025 21:30

Ethan Crenson

Hello all, I am looking for the following:  Bar

02-12-2025 18:59

Malcolm  Greaves Malcolm Greaves

This pair of ascos 2.5cm across were on recently b

03-12-2025 20:02

Buckwheat Pete

Hello everyone, does anyone know the genus Godroni

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Synarthonia ochracea
Gonzalez Garcia Marta, 07-03-2022 12:37
Good morning, I am studying an arthonial and using keys leads me to Synarthonia ochracea. I would like to know the opinion of someone who has more experience than me in this type of fungi.
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.
Franz Berger, 07-03-2022 13:09
Franz Berger
Re : Synarthonia ochracea
From where is it? Substrate?

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. 
Franz Berger, 07-03-2022 19:21
Franz Berger
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
Gonzalez Garcia Marta, 07-03-2022 19:50
Re : Synarthonia ochracea
Muchas gracias Franz. Quedo muy agradecida.
Saludos.