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24-12-2025 18:12

Ethan Crenson

Hello all, A friend found this Orbilia growing on

24-12-2025 17:08

Hulda Caroline Holte

Hello, I have found this propoloid ascomycete on

23-12-2025 11:27

Louis DENY

bonjour forum,sur débris de bois de feuillu (acer

20-12-2025 10:49

Mirek Gryc

Hi. „I doubt it is possible to identify this ti

23-12-2025 08:27

Josep Torres Josep Torres

Hello.Small, yellowish ascomata, with very short a

21-12-2025 09:32

Josep Torres Josep Torres

Hello.A tiny ascomycete found embedded in wood in

21-12-2025 21:32

Pol Debaenst

Hello, Garden, Burgweg 19, Veurne, BelgiumOn 10/1

22-12-2025 23:38

Patrice TANCHAUD

Bonsoir, récolte sur un mur en pierre, apothéci

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Castillo Joseba Castillo Joseba

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22-12-2025 00:47

Patrice TANCHAUD

Bonsoir, récolte à proximité du milieu dunaire

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Arthonia epiphyscia?
Dragiša Savic, 04-01-2017 13:30
Hi, I accidentally found this parasitic species on Physcia adscendens. I have no experience and no literature for parasits on lichens.
Is this Arthonia epiphyscia?
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Alain GARDIENNET, 05-01-2017 19:07
Alain GARDIENNET
Re : Arthonia epiphyscia?

Hi,


You must give more informations. Are the ascomata perithecioid ? Could you also describe or show hamathecium ?


Best wishes,


Alain


 


PS : it could be Lichenochora obscuroides

Alain GARDIENNET, 05-01-2017 21:32
Alain GARDIENNET
Re : Arthonia epiphyscia?

Are you really sure of the identification on the lichen ?


What was its size ? Are soralia present ?

Dragiša Savic, 06-01-2017 09:38
Re : Arthonia epiphyscia?
Hi Alain,
Yes, it is very similar to the Lichenochora obscuroides. I looked here over 100 lichen parasitic species, but this I missed.
I think there are two species of Physcia. P.adscendens (first picture) and P.tenella (second picture). If I'm not mistaken. Fungus are on P.tenella.
Ascomata is perithecioid (fourth picture, section)
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Alain GARDIENNET, 06-01-2017 17:39
Alain GARDIENNET
Re : Arthonia epiphyscia?

The one you call P. tenella, parasited one, is not P. tenella. It looks rather like Phaeophyscia orbicularis, that is a good host for L. obscuroides.


Alain

Dragiša Savic, 06-01-2017 17:57
Re : Arthonia epiphyscia?
Thanks Alain