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09-02-2026 11:42

Åge Oterhals

Hi forum, I found this Lachnum on old hardwood tw

02-02-2026 21:46

Margot en Geert Vullings

On a barkless poplar branch, we found hairy discs

25-01-2026 23:23

Tomaz Vucko Tomaz Vucko

Hello! I found this species that resembles Delitsc

06-02-2026 01:14

Tomaz Vucko Tomaz Vucko

Hello!How would you name this species? Most perith

04-08-2014 17:35

Leandro Sánchez Leandro Sánchez

Sur branche de feuillus, jusqu'à 22 mm diamètre,

05-02-2026 15:07

Vasileios Kaounas Vasileios Kaounas

Found on a fallen needle of Pinus halepensis, diam

05-02-2026 06:43

Stefan Blaser

Hello everybody, Any help on this one would be mu

18-08-2025 15:07

Lothar Krieglsteiner Lothar Krieglsteiner

.. 20.7.25, in subarctic habital. The liverwort i

02-02-2026 14:55

Andgelo Mombert Andgelo Mombert

Bonjour,Sur thalle de Lobaria pulmonaria.Conidiome

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Opegrapha glaucomaria?
Jenny Seawright, 29-05-2015 00:31
Jenny SeawrightHello all,

Lichenicolous fungus on on the thallus of Porpidia tuberculosa.

Small clusters of tiny black apothecia, appearing lecideine with roughened exposed discs and raised margins. Most spores were 2-3 septate, 15-24 x 7-9 µm, epithecium becoming darker green in KoH, paraphyses branched.


Opegrapha (now Phacographa) glaucomaria seems a possibilty and I wondered if anyone might have the key to this group:


Hafellner 2009: Phacothecium resurrected and the new genus Phacographa (Arthoniales) proposed. Bibliotheca Lichenologica 100: 85-121.


With regards,


Jenny

  • message #36164
  • message #36164
  • message #36164