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09-05-2025 19:10

Enrique Rubio Enrique Rubio

Hi to everybody.This Orbilia (apos up to 0.5 mm),

09-05-2025 19:25

Viktorie Halasu Viktorie Halasu

Hello, would you please recommend me a key to gen

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Thomas Flammer

I found a black cushon which might eventually be 

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Isabelle Charissou

Bonjour, j'aimerais savoir s'il y a eu des public

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Thomas Flammer

Munk, Anders (1953). The System of the Pyrenomycet

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Andreas Jacob

Good evening, due to contstant drought I started

07-05-2025 18:29

Francois Guay Francois Guay

I found this small hyaline ascomycete on moist, de

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Francois Guay Francois Guay

I found this white, hairy ascomycete on the bark o

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Ethan Crenson

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Castillo Joseba Castillo Joseba

Me mandan el material de Galicia, (España) , reco

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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