Accès membres

Mot de passe perdu? S'inscrire

06-05-2026 11:25

Castillo Joseba Castillo Joseba

Me mandan el material seco de Galicia (España) re

28-04-2026 20:07

Lothar Krieglsteiner Lothar Krieglsteiner

... on twig in the air at standing Ceratonia siliq

05-05-2026 22:40

Gernot Friebes

Hi,I believe this is a Plagiostoma growing on a Sa

04-05-2026 18:13

Stephen Martin Mifsud Stephen Martin Mifsud

ID request for what seems to be a true aquatic fun

04-05-2026 16:39

Stephen Martin Mifsud Stephen Martin Mifsud

ID request: This specimen was collected in Malta o

28-07-2011 18:31

Alex Akulov Alex Akulov

Dear FriendsToday I made the pdf file of Velenovsk

04-05-2026 09:50

Castillo Joseba Castillo Joseba

Me mandan el material seco de Galicia,(España) re

03-05-2026 11:38

Castillo Joseba Castillo Joseba

Me mandan el material seco, recolectado en dunasLo

02-05-2026 12:42

Alain BRISSARD

Bonjour à tousJeuidi 30 avril dernier on m'a remi

02-05-2026 13:06

Pauline. Penna

Bonjour  Please can someone help me with this id

« < 1 2 3 4 5 > »
Mollisia
Joop van der Lee, 23-11-2014 21:18
Joop van der Lee

Found on a little peace of wood.
Disk: grey/blue layer with cream coloured edges; when top layer is removed the inside is white.
Asco: 8-spored; biseriate in rows of two; 54-62x4-5 um.
Spores: elliptical; 7.5-10.5x2.0-3.0 um
Paraphyses have a slightly rounded top.


The last photo is a little too much on the green side

  • message #32283
  • message #32283
  • message #32283
  • message #32283
  • message #32283
  • message #32283
  • message #32283
Andreas Gminder, 23-11-2014 21:22
Andreas Gminder
Re : unknown asco

Hello,


this is a Mollisia species.


No chance to say anything more, many details are lacking.


 


best regards,


Andreas

Joop van der Lee, 23-11-2014 21:26
Joop van der Lee
Re : unknown asco
What more do you need Andreas?
Andreas Gminder, 23-11-2014 21:37
Andreas Gminder
Re : unknown asco

Hello Joop,


 


when I looked at the posting, the last four pictures weren't there ....


But nevertheless, at least the KOH reaction is important, though I believe that it should be negative here. In that case you will end up with Mollisia cinerea s.l., which still is an aggregation of very similar species were I have not the total clue for separating the different taxa.


You can do the KOH reaction macroscopically by putting a fragment of the hymenium in a drop of KOH 20% on a slide which is lying on a white sheet of paper. You then can see a yellow sap yielding from the fragment (KOH positive) - or no change of colour (KOH negative).


You can also do that microscopically by preparing a small piece of the hymenoum in a water mount and then adding KOH at the side of the cover slip. You can watch through the microscope when the KOH reached your piece of hymenium: The vacuolar bodies in the paraphyses will be dissolved rapidly by the KOH reaching these paraphyses. The dissolving will either result in a yellow colouration (positive) or the mount will stay completely colourless (negative).


 


best regards,


Andreas

Joop van der Lee, 23-11-2014 21:43
Joop van der Lee
Re : unknown asco
Ok, I will check that Rafael. I will let you know the results.
Joop van der Lee, 23-11-2014 22:19
Joop van der Lee
Re : unknown asco
KOH negative Rafael