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Mot de passe perdu? S'inscrire

05-11-2025 11:33

Pierre Repellin

Bonjpur,J'ai trouvé, sur une hampe florale d'Alli

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

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Xylographa parallela? - from Norway
Lothar Krieglsteiner, 01-12-2022 14:13
Lothar Krieglsteiner... on decorticated wood of Picea, near Snasa, Bergsasen, 6.7.22. The spores are about 15-19/6-7 µm large. I did not notice that this was lichenized, but I do not find another solution. Can somebody confirm my supposition? 
Yours, Lothar

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Gonzalez Garcia Marta, 01-12-2022 14:26
Re : Xylographa parallela? - from Norway
Yo creo que si, Lothar.
Tienes buenas claves en Italic 7.0 y descripción de la especie.
https://italic.units.it/
Y mas foto aquí:
https://www.centrodeestudiosmicologicosasturianos.org/?p=49502
Saludos.
Hans-Otto Baral, 01-12-2022 14:39
Hans-Otto Baral
Re : Xylographa parallela? - from Norway
I also believe. This paper should be consulted:

Spribille T., Resl P., Ahti T., Pérez-Ortega S., Tønsberg T., Mayrhofer H., Lumbsch H.T. 2014. Molecular systematics of the wood-inhabiting, lichen-forming genus Xylographa (Baeomycetales, Ostropomycetidae) with eight new species. Symb. Bot. Upsal. 37(1):1–87.
Lothar Krieglsteiner, 01-12-2022 14:43
Lothar Krieglsteiner
Re : Xylographa parallela? - from Norway
Hello Marta and Zotto,
thanks for your opinion and comments.
The link Marta gives is very similiar to what I have, but I did not notice such a splendid IKI-positive reaction. 
The paper Zotto states I just downloaded. If I get much wiser with it I will write again.
Yours, Lothar
Hans-Otto Baral, 01-12-2022 15:48
Hans-Otto Baral
Re : Xylographa parallela? - from Norway
Hi Lothar

you must know that lichenologists write "KI" for what I use to call KOH+IKI. You must only pretreat with KOH, then you get the deep blue.

Zotto
Lothar Krieglsteiner, 01-12-2022 15:56
Lothar Krieglsteiner
Re : Xylographa parallela? - from Norway
thank you, Zotto! I did not know this.
Best regards, Lothar