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Philippe PELLICIER

Sur branche morte de Mélèze. Les ascospores sphÃ

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Edmond POINTE Edmond POINTE

Bonjour amis mycologues,Trouvé sur moquette de ch

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Sylvie Le Goff

BonjourPensez vous que le genre Pulvinula puisse c

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Bernard Declercq Bernard Declercq

Hello,I am looking for a copy of following paper:H

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Philippe PELLICIER

Apothécies enterrées, fermées au début puis s'

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Heather Merrylees

Hi there!I am hoping for any advice on the identif

11-09-2025 16:57

Jason Karakehian Jason Karakehian

Our revision of Marthamycetales (Leotiomycetes) is

16-09-2025 12:53

Philippe PELLICIER

Pézizes de 1-4 mm, brun grisâtres, sur les capsu

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Enrique Rubio Enrique Rubio

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Nicolas VAN VOOREN Nicolas VAN VOOREN

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Sclerotiniaceae on the wood
Mlcoch Patrik, 23-08-2021 22:13
Mlcoch PatrikPlease about help with determination. 
On the part of wood of Alnus or Quercus, from the Czech Republic in july. 
Apothecia cca to 5 mm in diam., sclerotium not see. Excipulum consist of cells of textura globulosa, cells 13-20 x 11-14(18) um, paraphyses 75 x 1,7 um, asci IKI + (BB), 60-80 x 5,4-6 um, ascospores (8)9-10(11) x (2,8)2,9-3,5(3,6) um, Q=3, N=20.  I was looking for it between Ciborinia / Botryotinia etc., but it will maybe something else. 

Thanks. 

  • message #69856
  • message #69856
Hans-Otto Baral, 23-08-2021 22:58
Hans-Otto Baral
Re : Sclerotiniaceae on the wood
I think a Moellerodiscus. In dead state not easy to give a name. Your asci and paraphyses are dead. The latter probably contain VBs when alive, the former are much larger when turgescent.
Mlcoch Patrik, 24-08-2021 11:50
Mlcoch Patrik
Re : Sclerotiniaceae on the wood
Thanks, very interesting ... I have a question, when species are possible in central Europe on this substrate from this genus? 

Hans-Otto Baral, 24-08-2021 12:27
Hans-Otto Baral
Re : Sclerotiniaceae on the wood
Do you mean where they can occur, or at which time of the year? I know Moellerodiscus more in warmer or milder regions of Europe (e.g. atlantic), but my Moellerodiscus sp. HB 2938 on Alnus leaves and fruits made in summer 1985 is temperate (from Stuttgart), as is M. tenuistipes on Filipendula.
Mlcoch Patrik, 24-08-2021 13:13
Mlcoch Patrik
Re : Sclerotiniaceae on the wood
Ou, sorry, typing error, I have mean which species, no "when" ... if it was good for anything, I can try to sequencing it.
Hans-Otto Baral, 24-08-2021 13:38
Hans-Otto Baral
Re : Sclerotiniaceae on the wood
If you wantz to sequence it you should try to clarify some more characters, especially the iodine reaction under oil immersion and the presence of croziers. That would help in a conclusion, because the molecular knowledge is still poor.