27-04-2026 20:52
Lothar Krieglsteiner
Found on hanging tiwg of Olea europaea in dried-ou
27-04-2026 18:48
Tony MoverleyCollected 23rd April 2026, Norfolk, EnglandSwarms
27-04-2026 17:41
Lothar Krieglsteiner
.. Algarve, same leaf than the last post. The con
27-04-2026 18:05
Lothar Krieglsteiner
... still attached at standing tree. The green con
27-04-2026 17:16
Lothar Krieglsteiner
.. Algarve, moist lying.The conidiomata look like
27-04-2026 12:54
Steve ClementsBonjour. Ce petit champignon blanc résupiné et
27-04-2026 09:59
Pauline. PennaBonjour Can anyone advise me on these pycnidia fo
22-04-2026 20:54
Enrique Rubio
Hi to everybody.This Pyrenopeziza grew in moist le
Leptosphaeria on grass
Gernot Friebes,
19-07-2010 15:50
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:
Gernot Friebes,
19-07-2010 15:51
Re:Leptosphaeria on grass
micros (scale=10 µm):
Gernot Friebes,
19-07-2010 15:51
Re:Leptosphaeria on grass
sections (scale=10 µm):
Gernot Friebes,
19-07-2010 15:51
Re:Leptosphaeria on grass
sections (scale=10 µm):
Gernot Friebes,
19-07-2010 15:52
Re:Leptosphaeria on grass
ostioles (scale=10 µm):
Alain GARDIENNET,
19-07-2010 16:00
Re:Leptosphaeria on grass
It coulb be Phaeosphaeria fuckelii ?
I will look at this hypothesis.
Alain
I will look at this hypothesis.
Alain
Alain GARDIENNET,
19-07-2010 16:07
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
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
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
Best wishes,
Gernot
Alain GARDIENNET,
21-07-2010 16:26
Re:Leptosphaeria on grass
Very good !
I think it's quite sure P. fuckelii.
Best wishes,
Alain
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!