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09-06-2026 18:32

Camille Mertens

Sur morceau de roseau immergé 0,5 - 0,7 mm de dia

08-06-2026 10:16

Spooren Marco Spooren Marco

I don`t have a clou about this fungus,it is not in

08-06-2026 17:00

François Bartholomeeusen

Good day everyone, On June 5 2026, I collected de

07-06-2026 18:18

Mario Schulz

Hello everyone, i found on 31.5 the following Mol

07-06-2026 15:10

William Slosse William Slosse

Hello everyone,On 05-06-26, I found following asco

05-06-2026 11:02

Thomas Læssøe

https://svampe.databasen.org/observations/10596691

07-06-2026 12:09

François Freléchoux François Freléchoux

Bonjour, Voici une brève description de ce qui m

07-06-2026 12:43

Steve Clements

Bojour. This was a strange find on a stick on my

12-07-2015 00:05

Nedim Jukic Nedim Jukic

This one from the same locality as the previous on

06-06-2026 17:44

Steve Clements

Bonjour, This disco was on planed wood 3 x 1.5 cm

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Claussenomyces atrovirens?
Edvin Johannesen, 16-04-2021 16:33
Edvin Johannesen
Hi!

Black (when dry), solitary or somewhat clustered, sessile to very short-stipitate apothecia on dead, decorticated branch of Pinus sylvetris, Central Norway.

Asci 75-125 x 12-18 microns (in water), IKI-. Asci mostly with granular contents, but a few beginning to form septate spore, difficult to measure presicely. Paraphyses agglutinated in a greenish/olivaceus matrix (resinous material?), apparently with transverse, elongate "bodies". Subhymenium brownish.

I wonder if Claussenomyces atrovirens can be this dark when it dries.  Is Patellaria atrata an option?
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Edvin Johannesen, 16-04-2021 16:35
Edvin Johannesen
Re : Claussenomyces atrovirens?
A few more photos. The last photo is in Lugol.  The rest is in water.
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Quijada Luis, 16-04-2021 16:42
Re : Claussenomyces atrovirens?
Dear Edvin,
This is Tympanis. I cannot see the primary ascospores. Do you have the collection dry and are you going to keep it in your own herbarium? if so, I would like to know if you do not mind to send me a piece of the collection with some mature apothecia. I am working in this genus and I would like to study the morphology and get sequences. If you are interested in help me you can write me an email to lquijull@gmail.com and I can explain you more if you are trying to identify the species by yourself
Best wishes
Luis
Edvin Johannesen, 16-04-2021 16:53
Edvin Johannesen
Re : Claussenomyces atrovirens?
Of course! I studied Tympanis alnea the other day and I knew I had seen this kind of asci recently.  I just couldn't couple it to Tympanis because this one looked so different, macroscopically.

The speciemen I have at hand is a duplicate.  I will check with the finder how much more material there is.  I am sure he (Håkon Holien) will be more than happy to provide you with mature apothecia.

I will connect via email.  In the meantime - thanks!
Quijada Luis, 16-04-2021 16:58
Re : Claussenomyces atrovirens?
Thanks Edvin. Tympanis is very variable in its macromorphology, apothecia can be brown-orange, green or black and solitary or aggregate, whit or without white pruina over them. I will be happy to talk with you or your collegue about the collections that you have.
Best
Luis