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01-02-2012 13:52

Bombardioidea ou Schizothecium
André COUDER André COUDER

Bonjour à tousJ'hésite entre  Bombardioidea ser

31-01-2012 23:07

Funding opportunities wanted!
Yatsiuk Iryna Yatsiuk Iryna

Dear friends and colleagues, This is not very usu

31-01-2012 22:07

Phaeosphaeria: Demande d'article.
Luc Bailly Luc Bailly

Bonjour à tous, Hi all,Quelqu'un aurait-il ceci e

31-01-2012 13:42

setulose pyrenomycete on Pinus wood
Björn Wergen Björn Wergen

Hi,today I have found a curious small pyrenomycete

30-01-2012 12:45

Cudonia
PASCAL DUBOC

Bjrj'aimerai savoir si Cudonia circinans et Cudoni

21-01-2012 00:23

About a mollisioïd on burnt Ulex
Michel Hairaud Michel Hairaud

Bonjour à tous, Hi to all, Voici une récolte abo

29-01-2012 20:53

inoperculate Discomycetes
Björn Wergen Björn Wergen

Hi again,between Radulomyces confluens, Mollisia a

29-01-2012 01:24

Saccobolus verrucisporus? eleutherosporus?
Björn Wergen Björn Wergen

Hello,I think this is not the first time asking ab

29-01-2012 01:37

nice Hyphomycet
Björn Wergen Björn Wergen

Hidoes anybody know this nice hyphomycet? I rememb

04-01-2012 19:53

Helvella literature
Alex Akulov Alex Akulov

Dear friendsI try to find some publications, devot

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Leptosphaeria on grass
Gernot Friebes, 19-07-2010 15:50
Hi again,

here I have the second collection and with this find I did not come to any result at all.

It grew on grass lying in a little stream together with Mollisia hydrophila. The ascomata are immersed, the spores are 28-32 x 4-5.5 µm, 6-celled with the third cell slightly swallen, the ostiolum is filled with +- angular cells and not with periphyses and the peridium of big, brown cells. Within some ascomata the lower half of the peridium was much lighter than the upper half.

I would be thankful for any help!

Best wishes,


Gernot


ascomata:
  • message #12388
Gernot Friebes, 19-07-2010 15:51
Re:Leptosphaeria on grass
micros (scale=10 µm):

  • message #12389
Gernot Friebes, 19-07-2010 15:51
Re:Leptosphaeria on grass
sections (scale=10 µm):

  • message #12390
Gernot Friebes, 19-07-2010 15:51
Re:Leptosphaeria on grass
sections (scale=10 µm):
  • message #12391
Gernot Friebes, 19-07-2010 15:52
Re:Leptosphaeria on grass
ostioles (scale=10 µm):
  • message #12392
Alain GARDIENNET, 19-07-2010 16:00
Alain GARDIENNET
Re:Leptosphaeria on grass
It coulb be Phaeosphaeria fuckelii ?
I will look at this hypothesis.
Alain
Alain GARDIENNET, 19-07-2010 16:07
Alain GARDIENNET
Re:Leptosphaeria on grass
In that genus, it is frequently useful to observe ascospores in ink. Sometimes, P. fuckelii shows a sheath on ascospores.
Have you seen it ?
Nevertheless, I think it could be P. fuckelii.
Alain
Gernot Friebes, 19-07-2010 16:09
Re:Leptosphaeria on grass
I have material left and I will check on a possible sheath. I will write if I have seen something!

Gernot
Gernot Friebes, 20-07-2010 18:46
Re:Leptosphaeria on grass
I looked at some ascospores in Indian ink and most of them didn't have a sheath although I also found some spores were a sheath was more or less well visible. Here I show you the best photo I could take. Would you say that P. fuckelii is sure, now that I observed a sheath on at least some spores?

Best wishes,

Gernot

  • message #12409
Alain GARDIENNET, 21-07-2010 16:26
Alain GARDIENNET
Re:Leptosphaeria on grass
Very good !
I think it's quite sure P. fuckelii.
Best wishes,
Alain
Gernot Friebes, 21-07-2010 19:39
Re:Leptosphaeria on grass
thanks a lot, Alain!