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06-03-2025 23:27

Edvin Johannesen Edvin Johannesen

Hello!I have a collection of Asterosporium asteros

06-03-2025 21:53

Charles Grapinet Charles Grapinet

Hello, I found a very abundant Phaeosphaeria on t

04-03-2025 15:38

Hardware Tony Hardware Tony

Found on I what I think is Phyllostachys aurea, mo

06-03-2025 11:45

Wim de Groot

Several smal patches of Hypoxylon ticinense (sl?)

06-03-2025 17:23

Vasileios Kaounas Vasileios Kaounas

Found 13/2/25 on moss, very far away, only almond

04-03-2025 21:27

Yanick BOULANGER

BonsoirPetites fructifications jaunes récoltées

30-06-2018 14:36

Jan Knuiman

Growing on a rotten twig of a broadleaf tree (Sali

03-03-2025 08:10

Juuso Äikäs

I recently found these quite small fruitbodies gro

05-03-2025 08:53

Thomas Læssøe

With hyper fusiform-pointy spores.https://svampe.d

03-03-2025 08:20

Bernard CLESSE Bernard CLESSE

Une idée sur ces petites boules blanches sur mou

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Ascomycete with brown septate spores
Jennifer Fiorentino, 06-06-2022 10:34
When examining the apothecia of an arthonoid lichen growing on the bark of an unrecorded tree from the Maltese Islands (Mediterranean) I came across asci which did not belong to Arthonia. These had large 1- and 3- septate brown spores 46-55 x 14-17um with what looked like a perispore unless I am being fooled and that is still part of the spore wall. What could this asco be? Could it be a lichenicolous fungus or did I section the ascomatum of a saprophytic fungus which happened to be growing on the bark? Thanks.
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  • message #72945
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Gonzalez Garcia Marta, 06-06-2022 11:20
Re : Ascomycete with brown septate spores
Hi Jennifer
What is the reproductive structure of this fungus?
Is it lireliform? A perithecium? Do you think that this new fungi is also a fungus belonging to the Order Arthoniales? Is the apex ascal typical of Arthoniales?
Marta G. G.
Jennifer Fiorentino, 06-06-2022 12:05
Re : Ascomycete with brown septate spores
Hello Marta. I had actually taken a section of an apothecium of an Arthonia and found these asci. In fact I am suspecting this fungus could be a lichenicolous one but am not ruling out that I might have sectioned an apothecium of a saprobic asco. The brown septate spores cannot belong to an Arthonia. Size, shape and colour are different.
Jennifer Fiorentino, 06-06-2022 12:05
Re : Ascomycete with brown septate spores
Hello Marta. I had actually taken a section of an apothecium of an Arthonia and found these asci. In fact I am suspecting this fungus could be a lichenicolous one but am not ruling out that I might have sectioned an apothecium of a saprobic asco. The brown septate spores cannot belong to an Arthonia. Size, shape and colour are different.
Gonzalez Garcia Marta, 06-06-2022 12:49
Re : Ascomycete with brown septate spores
Hi Jennifer,
I'm sorry I can't be of much help.
Jennifer Fiorentino, 06-06-2022 13:40
Re : Ascomycete with brown septate spores
No prob. Thanks anyway.