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28-06-2025 16:00

Josep Torres Josep Torres

Hello.A tiny fungus shaped like globose black grai

01-07-2025 23:37

Josep Torres Josep Torres

Hello.A Pleosporal symbiotic organism located and

02-07-2025 17:26

Yanick BOULANGER

BonjourRécolté sur une brindille au fond d'un fo

03-07-2025 20:08

Francois Guay Francois Guay

I found this interesting yellowish asco growing on

03-07-2025 18:40

Castillo Joseba Castillo Joseba

me mandas el material seco de Galicia (España) re

02-07-2025 18:45

Elisabeth Stöckli

Bonsoir,Sur feuilles d'Osmunda regalis (Saulaie),

02-07-2025 09:32

Nicolas VAN VOOREN Nicolas VAN VOOREN

Hello, bonjour.Here is the paper I'm searching for

30-06-2025 16:56

Lydia Koelmans

Please can anyone tell me the species name of the

30-06-2025 12:09

Edvin Johannesen Edvin Johannesen

This tiny, rather "rough" erumpent asco was found

30-06-2025 06:57

Ethan Crenson

Hi all, Another find by a friend yesterday in Bro

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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