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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 21:46

Margot en Geert Vullings

On a barkless poplar branch, we found hairy discs

02-02-2026 14:55

Andgelo Mombert Andgelo Mombert

Bonjour,Sur thalle de Lobaria pulmonaria.Conidiome

02-02-2026 14:33

Andgelo Mombert Andgelo Mombert

Bonjour,Sur le thalle de Peltigera praetextata, ne

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Phaeohelotium on Fagus wood
Mlcoch Patrik, 21-09-2019 13:30
Mlcoch PatrikPlease about help with determination:

Apothecia not reddening, excipulum from cells of textuta angularis, cells 12(14)-19(20) x 9-10(12) um. Asci IKI-, 100-115 x 8,5-9,5 um. Spores fusoid, hyaline, OCI=2-3 (?), 15-20 X (3,3)3,6-5,1(5,2) um, Q=3,5-4,5, Q(av)=4, N=25. On Fagus wood in forrest type Fagion. Preparate in deluted lugol solution.
Thanks. PM
  • message #59336
  • message #59336
Josep Torres, 21-09-2019 17:03
Josep Torres
Re : Phaeohelotium on Fagus wood
Atendiendo al sustrato, quizás Hymenoscyphus calyculus.
Saludos.
Hans-Otto Baral, 21-09-2019 17:06
Hans-Otto Baral
Re : Phaeohelotium on Fagus wood
Hi Patrick
this is typical P. epiphyllum (= Hymenosc. epiphyllus).
Important are the multiguttulate paraphyses for delimitation against P. monticola. They are the only living cells on your photos. It is not good to make the general preparation in Lugol, only at the end you can add it for the amyloidity. The spore oil content is importnat too, and it is a bit distorted on your photos.

H. epipyhhlus may occur with inamyloid asci, but usually ithas an amyloid ring - genetically both are identical
Zotto
Mlcoch Patrik, 21-09-2019 20:17
Mlcoch Patrik
Re : Phaeohelotium on Fagus wood
Thanks, PM