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12-11-2019 14:18

Cryptodiscus on fern stem?
Edvin Johannesen Edvin Johannesen

Hi! I have a very small Cryptodiscus-like specimen

12-11-2019 19:44

Disco # 50727
Roland Labbé

Bonjour ! Voici un disco inconnu de nous, peut-ê

12-11-2019 15:10

Could this be: Pestalotiopsis verruculosa?
François Bartholomeeusen

Hi forummembers,On November 8, 2019, I took home 4

10-11-2019 12:09

Orbilia eucalypti ?
Petra Eimann Petra Eimann

Hello, found 2019-09-15 on old hardwood trunk. Unf

12-11-2019 10:32

Pachyella 011019
Miguel Ãngel Ribes Miguel Ángel Ribes

Hi againExactly at the same place than my previous

11-11-2019 09:02

Literature request
Christian Lechat Christian Lechat

Hi to all, Does anyone have: Subramanian C.V. &

07-11-2019 21:06

Is this a Nemania?
Fred Rhoades

Found on decorticated wood, I think hardwood - Ace

10-11-2019 17:36

help with this
Angel Pintos Angel Pintos

A friend  send my this picture.on pinus Halepensi

11-11-2019 10:39

Una para ID
Castillo Joseba Castillo Joseba

Me mandan el material seco de Galicia,   recolect

11-11-2019 05:13

Tympanis conspersus ?
Ethan Crenson

Found recently in a New York City park. It appears

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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!