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21-09-2019 13:30

Mlcoch Patrik Mlcoch Patrik

Please about help with determination:Apothecia not

20-09-2019 11:54

Valencia Lopez Francisco Javier

Hola amig@sAdjunto fotos de unas supuestas Trichop

06-09-2019 21:49

Andgelo Mombert Andgelo Mombert

Bonsoir, Sur feuille de Alnus alnobetula, vers 15

06-09-2019 21:41

Andgelo Mombert Andgelo Mombert

Bonsoir, Sur racines de Alnus incana, au bord d'u

17-09-2019 17:53

Jean-Claude Malaval Jean-Claude Malaval

Bonsoir,Espèce de l'île de La RéunionAscomes 1-

19-09-2019 15:08

Sigrid Jakob

I would be grateful for any suggestions on the fol

15-09-2019 01:46

Valencia Lopez Francisco Javier

Hola a tod@sAdjunto fotos de unas Tricharinas sp,

13-09-2019 07:32

Josep Torres Josep Torres

Hola.Hongo fotografiado anteayer sobre unas agalla

16-09-2019 19:56

Nicolas VAN VOOREN Nicolas VAN VOOREN

Here is a asexual stage of a pyrenomycete, collect

16-09-2019 19:59

Castillo Joseba Castillo Joseba

Para confirmar IDDel pasado sabado sobre madera mu

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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