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31-12-2021 12:12

Georges Greiff

Happy New Year to All! I was hoping somebody coul

15-08-2025 12:47

Philippe PELLICIER

Bonjour, j'ai récolté cette Scutellinia au Col d

15-08-2025 21:50

Bernard CLESSE Bernard CLESSE

Bonsoir à toutes et tous,Pourriez-vous m'aider à

13-08-2025 12:17

Castillo Joseba Castillo Joseba

De ayer en la misma muestra que el Ascobulus anter

13-08-2025 22:41

Francois Guay Francois Guay

I found this species on decaying wood in Québec,

14-08-2025 17:32

Nicolas VAN VOOREN Nicolas VAN VOOREN

Hello.In the course of forthcoming paper about Geo

15-08-2025 07:20

Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Hello, a few days ago I have collected this Tarzet

12-08-2025 21:01

Peter Welt Peter Welt

What could this be? Fromm Torsten Richter Any ide

13-08-2025 12:01

Castillo Joseba Castillo Joseba

De ayer en KK de vacunoAscas con 20 o mas esporasa

12-08-2025 19:44

Enrique Rubio Enrique Rubio

Could someone send me a pdf copy of this article?S

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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