
16-09-2025 12:53
Philippe PELLICIERPézizes de 1-4 mm, brun grisâtres, sur les capsu

03-09-2025 12:44
Hi to somebody.I would like to know your opinion o

15-09-2025 14:40

Hello.I'm searching for a digital copy of the seco

14-09-2025 22:16
Philippe PELLICIERApothécies petites jusquà 3 mm, oranges, avec de

13-09-2025 14:01
Thomas Flammerdark brown apothecia, splitIKI-Spores biguttulate

10-09-2025 17:18

Hola, encontre este estiercol de vaca estos apotec

13-09-2025 14:10
Wim de GrootWe found this hymenoscyphus on rubus fruticulosis.

11-09-2025 16:57
Our revision of Marthamycetales (Leotiomycetes) is

10-09-2025 23:53

Found on Robinia pseudoacasia together with Diapor

02-09-2025 11:34
Thomas Læssøehttps://svampe.databasen.org/observations/10527903
Leptoshaeria? on Quercus
Martin Bemmann,
02-09-2010 00:32

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
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