Accès membres

Mot de passe perdu? S'inscrire

21-03-2026 22:59

Petr Soucek

Good evening, I would appreciate some advice on th

21-03-2026 15:13

Lepista Zacarias

Hello everyone, Does any one know of any literatu

20-03-2026 12:53

Stefan Blaser

Hello everybody, In the field, from distance, my

20-10-2017 09:23

Garcia Susana

Este otro crecía en el mismo trocito de madera qu

20-03-2026 16:16

Edvin Johannesen Edvin Johannesen

These 0.5 mm diam. acervuli were breaking through

19-03-2026 19:34

Filip Fuljer Filip Fuljer

Hello everyone,a few days ago I collected this str

19-03-2026 18:25

William Slosse William Slosse

Good evening everyone, On 18/03/26 I found a few

17-03-2026 10:09

François Freléchoux François Freléchoux

Bonjour, Voici la description rapide d'un petit d

19-03-2026 15:58

Stefan Blaser

Hello everybody, I hope for some hints... Macro:

19-03-2026 17:50

Enrique Rubio Enrique Rubio

Hi to everybodyThese thiny, blackish pseudothecia

« < 1 2 3 4 5 > »
Mollisia fusca on a polypore?
François Bartholomeeusen, 11-04-2019 09:08
Dear forum members,

FRBs found on the hymenium of a polypore (Piptoporus betulum). The substrate was still attached to the birch. The diameter of the ascomata are smaller than 1 mm.
Using my information I determine this asco as Mollisia fusca.
Is that correct? The dimensions of the spores are not completely correct and the substrate must be wood according to the key.
Thank you in advance for your help.

Best regards


François

  • message #57232
  • message #57232
  • message #57232
  • message #57232
  • message #57232
  • message #57232
Hans-Otto Baral, 11-04-2019 10:31
Hans-Otto Baral
Re : Mollisia fusca on a polypore?
M. fusca as I understand has longer spores. Did you test KOH whether a yellow sap extrudes?
François Bartholomeeusen, 11-04-2019 14:16
Re : Mollisia fusca on a polypore?
Hi Zotto,

I forgot to mention, the reaction in 5% KOH was immediate lemon-yellow.

François
  • message #57234
Hans-Otto Baral, 11-04-2019 16:30
Hans-Otto Baral
Re : Mollisia fusca on a polypore?
M. fusca seems actually a big problem because the available sequences are very diverse.

In seemingly typical collections the spores are often 10-14 µm long. And the subicular hyphae were rather wide (3-5 µm).
François Bartholomeeusen, 11-04-2019 17:00
Re : Mollisia fusca on a polypore?
Thanks Zotto for your swift answer!
Greetings,

François