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Mot de passe perdu? S'inscrire

15-02-2026 04:32

Tomaz Vucko Tomaz Vucko

One more specimen that is giving me some descent a

14-02-2026 22:45

Tomaz Vucko Tomaz Vucko

Hy!I would ask for some help determing this specie

09-02-2026 14:46

Anna Klos

Goedemiddag, Op donderdag 5 februari vonden we ti

14-02-2026 19:09

Valencia Lopez Francisco Javier

Hola colegasEstoi interesado en este articulo, Agn

13-02-2026 18:05

Margot en Geert Vullings

On February 9, 2026, we found these small hairy di

14-02-2026 10:58

Bernard CLESSE Bernard CLESSE

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

13-02-2026 03:30

Tomaz Vucko Tomaz Vucko

Hello! I found these immersed perithecia on a stic

13-02-2026 18:02

Nogueira Héctor

November 2025 León (SPAIN) ID Help Hello! Thi

12-02-2026 21:34

patrice Callard

Bonjour, la face inférieure des feuilles ce certa

11-02-2026 22:15

William Slosse William Slosse

Today, February 11, 2026, we found the following R

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Lichen (black lirellae, hemiamyloid hymenium)
Viktorie Halasu, 03-07-2020 22:51
Viktorie HalasuHello,

I'd like to ask for help with a lichen. In which genus (family) should I start searching? Looking like tiny hysterothecia, spores narrowly fusiform, 5-celled with middle cell widened, hyaline, around 20 um long, with gel sheath. There seems to be some hemiamyloid gel in hymenium (IKI+r, KOH/IKI+b). No color reaction in KOH.
On bark of Picea. 

Thank you very much in advance.
Viktorie
  • message #63986
Hans-Otto Baral, 03-07-2020 23:07
Hans-Otto Baral
Re : Lichen (black lirellae, hemiamyloid hymenium)
Perhaps Opegrapha?
Viktorie Halasu, 04-07-2020 00:41
Viktorie Halasu
Re : Lichen (black lirellae, hemiamyloid hymenium)
Oh yes, indeed. Thank you!