07-11-2018 08:34
Zuzana Sochorová (Egertová)
Hello, could someone send this publication to me
18-05-2024 10:47
Anna KlosGoodmorning,We found this tiny ascomycete (max. 1m
25-03-2024 19:14
Juuso ÄikäsI found some small black pyrenos growing on a dead
10-05-2024 17:40
Anna KlosGood afternoon, Thursday during an inventory we f
17-05-2024 16:25
Pavel JiracekErioscyphella lunata, found on a fallen needle of
29-01-2022 21:44
Jan EcksteinGood evening, apothecia small, yellowish, 150-300
16-05-2024 11:19
Sylvie Le GoffBonjour, j'ai récolté sur une branchette de feui
14-05-2024 09:19
Hans-Otto Baral
Hi, I want to announce for next Sunday 17.00 middl
Leptoshaeria? on Quercus
Martin Bemmann,
02-09-2010 00:32
Hi,this one is from a dead branch of oak, still attached to the trunk in approx. 2 m height above ground. The branch is completely decorticated and covered by algues, lichen etc. I found Orbilia aprilis and some pyrenos on it amongst them this one:
It has obpyriforme perithecia, with a leathery to "carbonized" peridium. Size is c. 185µm width by 40 µm height. Most of those ascocarps are superficial but some are also partly immersed in the decorticated rotten wood. The spores are fusiforme and multiseptated (41,8-46,2 x 5-6,4 µm).
My guess is a Leptosphaeria, but....
Maybe some of you will recognize this one.
>
Best regards,
Martin
Martin Bemmann,
02-09-2010 00:33
Re:Leptoshaeria? on Quercus
a single one...
Martin Bemmann,
02-09-2010 00:41
Re:Leptoshaeria? on Quercus
and spores:
Bernard Declercq,
02-09-2010 11:22
Re:Leptoshaeria? on Quercus
Hi Martin,
Spores are rather assymmetrical, uncommon for a Leptosphaeria.
Did you observe bitunicate asci?
Bernard
Spores are rather assymmetrical, uncommon for a Leptosphaeria.
Did you observe bitunicate asci?
Bernard
Hans-Otto Baral,
02-09-2010 18:36
Re:Leptoshaeria? on Quercus
Maybe it is this one? I regret I have only dead photos, but I noted this to have multiguttulate spores when alive. Asci unitunicate. I compared my fungus with Chaetosphaeria.
HB 6170c. Tübingen-Pfrondorf, 400m, on very rotten branch of Quercus (wood), 28.VI.1998, H.-O. Baral & G. Marson (HB 6170c)Assoc.: "Fuscolachnum mollisioides, Durella connivens Waldrand, Hang zur Schlucht, Qu-Carp-Acer camp-Frax-Fag-Wald, ca. 3m above ground, ca. 1m long. branch, near tip, 15-20mm thick, decort., strongly algae-covered. Asci unitunicate, Spores *38 x 5,3 µm, hyaline, strongly fusoid, ca. 14 celled, many minute LBs.
HB 6170c. Tübingen-Pfrondorf, 400m, on very rotten branch of Quercus (wood), 28.VI.1998, H.-O. Baral & G. Marson (HB 6170c)Assoc.: "Fuscolachnum mollisioides, Durella connivens Waldrand, Hang zur Schlucht, Qu-Carp-Acer camp-Frax-Fag-Wald, ca. 3m above ground, ca. 1m long. branch, near tip, 15-20mm thick, decort., strongly algae-covered. Asci unitunicate, Spores *38 x 5,3 µm, hyaline, strongly fusoid, ca. 14 celled, many minute LBs.
Martin Bemmann,
03-09-2010 13:08
Re:Leptoshaeria? on Quercus
Hi Bernard and Zotto,
thank you for yuor comments. Here are some pictures of the asci in IKI, that maybe help.
Best regards
Martin
thank you for yuor comments. Here are some pictures of the asci in IKI, that maybe help.
Best regards
Martin
Martin Bemmann,
03-09-2010 13:08
Re:Leptoshaeria? on Quercus
another:
Martin Bemmann,
03-09-2010 13:09
Re:Leptoshaeria? on Quercus
still more:
Martin Bemmann,
04-09-2010 23:27
Re:Leptoshaeria? on Quercus
Hi,
I made a new preparation with CB to find out if there is a visible apical aparatus. I think there are parts staining different and one can imagin an annulus... ;-)
Cheers
Martin
I made a new preparation with CB to find out if there is a visible apical aparatus. I think there are parts staining different and one can imagin an annulus... ;-)
Cheers
Martin
