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21-03-2026 15:13

MYXOMYCETICOLOUS FUNGI
Lepista Zacarias

Hello everyone, Does any one know of any literatu

23-03-2026 20:16

Coprotus 210226 315
Miguel Ãngel Ribes Miguel Ángel Ribes

Good eveningI'm unable to identify this Coprotus o

23-03-2026 13:24

Literature search
Paul Cannon

Could anyone provide me with a pdf of Auerswald's

20-10-2017 09:23

Hymenoscyphus ¿calycinoides?
Garcia Susana

Este otro crecía en el mismo trocito de madera qu

21-03-2026 22:59

Hysteriaceae ??
Petr Soucek

Good evening, I would appreciate some advice on th

20-03-2026 12:53

Eutypa spec. (?)
Stefan Blaser

Hello everybody, In the field, from distance, my

20-03-2026 16:16

Pseudomassaria-like on Cornus alba
Edvin Johannesen Edvin Johannesen

These 0.5 mm diam. acervuli were breaking through

19-03-2026 19:34

Xylariaceae? on Carpinus betulus wood
Filip Fuljer Filip Fuljer

Hello everyone,a few days ago I collected this str

19-03-2026 18:25

Myriosclerotinia curreyana?
William Slosse William Slosse

Good evening everyone, On 18/03/26 I found a few

17-03-2026 10:09

Lasiobelonium corticale ?
François Freléchoux François Freléchoux

Bonjour, Voici la description rapide d'un petit d

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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 :-)