Accès membres

Mot de passe perdu? S'inscrire

11-02-2012 06:50

Roland Labbé

Bonjour !  Voici une planche et une photo macro

24-07-2024 14:07

Elisabeth Stöckli

Bonjour,Cette espèce a été trouvé sur place à

23-07-2024 19:27

éric ROMERO éric ROMERO

Bonjour, Je n'ai pas d'idée pour cette espèce t

24-07-2024 13:19

Thomas Flammer

I am looking for a PDF of the above article. Thank

22-07-2024 10:20

Hans-Otto Baral Hans-Otto Baral

Hello please note that I uploaded today an Englis

21-07-2024 10:13

Thierry Blondelle Thierry Blondelle

Bonjour,Récolte sur branchette de Castanea dans u

19-07-2024 10:24

Kozak Robert

Date: 2024.07.16Loess gorges, on soil with a lot o

21-07-2024 10:28

Alan Rockefeller Alan Rockefeller

Which Peziza did I find on horse dung in Humboldt

19-07-2024 11:08

Miguel Ãngel Ribes Miguel Ángel Ribes

Good morningThis Scutellinia from July 9 grew at 1

21-07-2024 06:23

Masanori Kutsuna

Dear all, Does anyone have these papers and send

« < 1 2 3 4 5 > »
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!