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06-07-2025 19:36

Castillo Joseba Castillo Joseba

me mandan el material de Galicia (España) recolec

02-07-2025 18:45

Elisabeth Stöckli

Bonsoir,Sur feuilles d'Osmunda regalis (Saulaie),

01-06-2025 09:37

Charles Aron Charles Aron

Hi All, I found this Octospora growing with liver

05-07-2025 12:38

Åge Oterhals

I found this pyrenomycetous fungi in pine forest o

04-07-2025 20:12

Josep Torres Josep Torres

Hello.A fungus growing on the surface of a trunk o

20-06-2025 08:33

Josep Torres Josep Torres

Hello.Small, blackish, mucronated surface grains s

28-06-2025 16:00

Josep Torres Josep Torres

Hello.A tiny fungus shaped like globose black grai

04-07-2025 12:43

Castillo Joseba Castillo Joseba

me mandan el material seco de Galicia (España) 

03-07-2025 18:40

Castillo Joseba Castillo Joseba

me mandas el material seco de Galicia (España) re

03-07-2025 20:08

Francois Guay Francois Guay

I found this interesting yellowish asco growing on

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Aquatic, hyaline-milky superficial unitunicate pyreno with muriform spores - Denmark VI 2019
Thomas Læssøe, 03-06-2019 17:21
Ascospores 23,8-24,5 x 7,5-7,8 µm, hyaline, muriform with 5 transverse septa and one longitudinal, fusiform. Asci 8-spored, obliquely uniseriate, with crozier, unitunicate with small ring-like ap. apparatus. Paraphyses broadlhy filiform, septate.
Perithecia milky-white with delimited papillate-rounded ostiole. Like an albino-Cosmospora. Solitary or in small clusters among Jahnula a. KOH inert.Lugol inert.


https://svampe.databasen.org/observations/10015167
Jacques Fournier, 03-06-2019 18:33
Jacques Fournier
Re : Aquatic, hyaline-milky superficial unitunicate pyreno with muriform spores - Denmark VI 2019
Hi Thomas,

welcome in water!

I think I know this fungus that I collected fairly often in my region, always forming small inconspicuous colonies. Ascomata are about 200µm diam. I did not notice the longitudinal septum but the guttulate content may make it difficult to see.

All attempts to grow it in culture failed, thus it remained unnamed, likely an undescribed genus.

Similar minute whitish ascomata with different ascospores may also occur, microscopy is thus required. None of those that I collected got a name...

Cheers,

Jacques
Thomas Læssøe, 03-06-2019 21:03
Re : Aquatic, hyaline-milky superficial unitunicate pyreno with muriform spores - Denmark VI 2019
Thanks Jacques. I cannot say I directly observed a longitudinal septum but rather guessed its presence based on the guttulation. The material is rather rich but I am not surprised it remains unnamed.

All the best
Thomas
Martin Bemmann, 03-06-2019 22:05
Martin Bemmann
Re : Aquatic, hyaline-milky superficial unitunicate pyreno with muriform spores - Denmark VI 2019
Hi Thomas,

did you check congophily? Just to have another +-feature.

regards

Martin
Thomas Læssøe, 03-06-2019 22:50
Re : Aquatic, hyaline-milky superficial unitunicate pyreno with muriform spores - Denmark VI 2019
nope but maybe possible tomorrow :-)