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17-11-2009 22:22

Pablo Chacón Pablo Chacón

Bonne nuit, Voir si vous m'avez élaguée appor

07-12-2015 14:17

Zugna Marino Zugna Marino

Buon giorno a tutti, ad un primo momento, non ess

25-11-2012 20:32

Bometon Javier Bometon Javier

Ascomas cupoliformes abiertos lateralmente, himeni

25-01-2026 16:08

Malcolm  Greaves Malcolm Greaves

This Geoglossum had spores mostly 70-80 (87) with

27-01-2026 11:43

Malcolm  Greaves Malcolm Greaves

Is anyone with experience of DNA testing able to t

26-01-2026 11:49

Margot en Geert Vullings

We found this possible anamorph on a dead Cytisus

25-01-2026 23:23

Tomaz Vucko Tomaz Vucko

Hello! I found this species that resembles Delitsc

18-01-2026 12:24

Josep Torres Josep Torres

Hello.An anamorph located on the surface of a thin

23-01-2026 21:50

Cameron DK

I am looking for this please publication. is anyon

10-01-2026 20:00

Tom Schrier

Hi all,We found picnidia on Protoparmeliopsis mur

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Rhytismatales? on Carex
Marja Pennanen, 21-07-2016 12:55
Hello forum,

once again I'm not finding even a genus for my collection.

These brown ones are up to 1,5 mm wide.
The spores are about 10-20x2-3 and asci about 40-50x5, faintly IKI blue and paraphyses are up to 3 wide.
Dark cells exist and there is some kind of brown material reminding hairs on the surface.
I saw one, supposingly  representative of this species, that was closed black ball. So I was trying to find a genus from Rhytismatales, but must have missed the genus or am seeking from a wrong place.

Better suggestions?

Marja
  • message #43958
  • message #43958
  • message #43958
  • message #43958
Hans-Otto Baral, 21-07-2016 13:24
Hans-Otto Baral
Re : Rhytismatales? on Carex
Dear Marja
I think you have Dennisiodiscus prasinus. Are the asci 4-spored?
Zotto
Marja Pennanen, 21-07-2016 13:33
Re : Rhytismatales? on Carex
Dear Zotto,

Thak you for your fast answer.

I could not count the spores inside the asci, but was wondering, where there 4 or 8 spores, because the spores are big compared to the asci size.

I may try to check another later. Now I got to post some other specimens to Seppo, while they are still fresh...

Dennisiodiscus would be a new genus for me :D

Marja
Marja Pennanen, 21-07-2016 16:01
Re : Rhytismatales? on Carex
Checked another and the asci are 4-spored.

There seems to be another collection from Finland in Turku and if more have not been collected lately, this was the second finding of Dennisiodiscus prasinus here.

Once again, thank you Zotto.

Happy for this new genus for me: Marja