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04-11-2025 09:07

Josep Torres Josep Torres

Hello.A suspected Hymenoscyphus sprouting on a thi

04-11-2025 12:43

Edvin Johannesen Edvin Johannesen

Hi! One more found on old Populus tremula log in O

04-11-2025 14:53

Josep Torres Josep Torres

Hello.Very small, globose, mucronate perithecia, b

03-11-2025 21:34

Edvin Johannesen Edvin Johannesen

These tiny (0.4-0.5 mm diam.), whitish, short-stip

03-11-2025 19:41

David Chapados David Chapados

Hi,Does anyone knows which genus could this be? G

28-10-2025 15:37

Carl Farmer

I'd be grateful for any suggestions for this strik

03-11-2025 16:30

Hans-Otto Baral Hans-Otto Baral

Hello I want to ask you if you have found this ye

01-11-2025 09:14

Francis Maggi

Bonjour,Trouvé sur Xanthoria parietina à Valdebl

28-10-2025 19:33

Nicolas Suberbielle Nicolas Suberbielle

Bonjour à tous,Je voudrais votre avis sur cette r

31-10-2025 09:19

Lothar Krieglsteiner Lothar Krieglsteiner

Can somebody provide me with a file of:Rogerson CT

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Lecideine lichen from granite
Jones, 08-02-2016 16:25
Hello dear ascofrance users
This is my first post on your forum.
I have recently taken an interest in lichenized fungi and as such my knowledge is still limited, but I hope that you can help me narrow down the possibilities for this lichen. It grows on an old milestone that is around 300 years old.
K and C reactions are negative, and the apothecium are ~0.35mm on average. I suspect that is is Catillaria chalybeia, but I realise that I might need microscopic characters to confirm this. Sadly I do not own or have access to a microscope (yet).
I have already uploaded photos of the lichen on a danish forum, and will link to that thread rather than upload pictures here. I hope that is ok.
http://www.fugleognatur.dk/forum/show_message.asp?MessageID=1502726&ForumID=41
As I said, I realize that this will likely end in an sp., but for some reason I have fallen in love with this lichen and this is my last resort to get an identification.

Best regards
Jonas