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29-06-2016 15:18

Scopinella
Per Vetlesen

HiIt was found on the bark of a dead branch of Jun

07-01-2018 22:47

Scopinella?
Per Vetlesen

Grown in moist chamber on bark/resin of fallen Pin

06-04-2026 15:04

Gnomoniaceae
David Chapados David Chapados

Hi! Could someone help me identifying this specim

06-04-2026 21:36

Literature search
Viktorie Halasu Viktorie Halasu

Hello, could anyone please send me the article wi

06-04-2026 19:40

Nectriaceae on Fagus
David Gibbs David Gibbs

Help with this one much appreciated, on rotting Fa

06-04-2026 11:07

Arachnopeziza delicatula
Louis DENY

Bonjour forum, Trouvé sur bois de feuillu très d

06-04-2026 16:24

Helotiales on Pinus needles
Juuso Äikäs

Last Tuesday I found some tiny white Helotiales gr

05-04-2026 13:33

Mollisia sp?
Sylvie Le Goff

Bonjour à tousPuis avoir votre avis sur ce champi

05-04-2026 20:40

Unknown helotiales on Abies bark
Robin Isaksson Robin Isaksson

Hi!Found i Japan on bark of Abies sp. Spores 35-4

06-04-2026 08:15

minute hairy discomycete from Portugal - Fuscolachnum?
Lothar Krieglsteiner Lothar Krieglsteiner

some days ago, on the lower surface of leaf of Que

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Cryptodiscus on fern stem?
Edvin Johannesen, 12-11-2019 14:18
Edvin Johannesen
Hi! I have a very small Cryptodiscus-like specimen on a fern stem. Ascomata 0.2-0.3 mm in diam.  The shown spore measures (in KOH) ca. 45x5 microns. Septate, but hard to see how many septa.

I have not come across a Cryptodiscus on ferns. Am I in the right genus or is this another Ostropales?

Thanks for any hints.

Edvin
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Hans-Otto Baral, 12-11-2019 16:05
Hans-Otto Baral
Re : Cryptodiscus on fern stem?
Hmm,this needs at least a phot of an ascus and a test in Lugol: in Cryptodiscus and Karstenia the entire hymenium gets colorated.
Peter Püwert, 12-11-2019 17:45
Peter Püwert
Re : Cryptodiscus on fern stem?
We've had this before, right?


Greetings Peter.
Edvin Johannesen, 12-11-2019 18:08
Edvin Johannesen
Re : Cryptodiscus on fern stem?
The entire (sub) hymenium is staining bluish-green in Lugol. See photo of this and a few photos of spores and asci in water.
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Edvin Johannesen, 12-11-2019 18:09
Edvin Johannesen
Re : Cryptodiscus on fern stem?
A couple of shots using phase contrast.
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Hans-Otto Baral, 12-11-2019 18:21
Hans-Otto Baral
Re : Cryptodiscus on fern stem?
So Peter's idea seems to be good!
Edvin Johannesen, 12-11-2019 18:31
Edvin Johannesen
Re : Cryptodiscus on fern stem?
So - K. idaei, then?

Thanks to both :)
Hans-Otto Baral, 12-11-2019 20:17
Hans-Otto Baral
Re : Cryptodiscus on fern stem?
Yes, it seems so.
Edvin Johannesen, 12-11-2019 20:19
Edvin Johannesen
Re : Cryptodiscus on fern stem?
Thanks!