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12-03-2025 17:54

Karl Soler Kinnerbäck

Hi all!Do you agree with Scutellinia hyperborea? P

06-06-2025 12:12

Hans-Otto Baral Hans-Otto Baral

Dear all I want to ask you if you have any recent

01-06-2025 09:37

Charles Aron Charles Aron

Hi All, I found this Octospora growing with liver

15-06-2025 21:39

éric ROMERO éric ROMERO

Bonjour à tous, Espèce récoltée sur une tige

14-06-2025 13:28

Richard VALERI Richard VALERI

Bonjour à tous.Trouvé au sol, longuement résupi

13-06-2025 16:34

Andgelo Mombert Andgelo Mombert

Bonjour,Un petit discomycète qui me résiste. Il

13-06-2025 19:57

Castillo Joseba Castillo Joseba

De ayer en bosque de hayas y avellanosEjemplar uni

12-06-2025 19:36

Rodríguez Borja Rodríguez Borja

Hi, I have got this collection hoping you can giv

13-06-2025 09:41

Josep Torres Josep Torres

Hello.A cerebriform ascomycete sprouting scattered

12-06-2025 15:53

Viktorie Halasu Viktorie Halasu

Hello, I keep finding something with spores like

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Salix pyreno puzzle
Chris Yeates, 20-04-2021 14:18
Chris Yeates
Bonjour tous

A collection of a few small twigs/narrow branches is throwing up several such puzzles, It is extra annoying when the material is in good condition and seems to be presenting good identification characters!

So here a mostly superficial "pyrenomycete" which occurs both clustered and scattered on a damp fallen Salix cinerea twig, The ascomata measure up to 450µm are black with a sort of granular surface. Asci are 8-spored and have distinctive rather long, tapering "stalks" filled with protoplasm, no paraphyses or similar were present. Spores as in the images - hyaline, 1-septate, filled with globular granules, 15.5-19.1 x 6.5-7.1µm.

Before looking under the microscope I had considered genera such as Nitschkia, but thes spores alone seem to rule that out. So I am confused, as ever any suggestions would be welcome.

Chris
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Enrique Rubio, 21-04-2021 16:47
Enrique Rubio
Re : Salix pyreno puzzle
Thanks a lot, Chris.
I'm sorry, I can't help you but I can't think of anything acceptable. My first impression was Plagiostoma, but the asci are certainly not those of a Diaporthales.