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01-04-2009 05:21

Pézize sur mousse printanière
herman lambert

Petites pézizes poussant sur mousse au pied d'un

30-03-2009 20:37

Hypoxylon rubiginosum?
Gernot Friebes

Hello, on Saturday I found this pyrenomycet on

30-03-2009 19:10

Diplonaevia
Stip Helleman Stip Helleman

Bonsoir a tout, Has anyone for me the article abo

29-03-2009 18:14

Recherche article
Alain GARDIENNET Alain GARDIENNET

Bonjour, L'article que je recherche est exacteme

29-03-2009 15:18

unknown pyrenomycet 2
Gernot Friebes

Hello, here is my second pyrenomycet I found ye

29-03-2009 15:10

unknown pyrenomycet 1
Gernot Friebes

Hello forum, it's my first post here and I'm st

29-03-2009 13:53

Geoglossum sp
roman vargas alberto

Salut J'ai pensé que Geoglossum umbratile po

27-03-2009 18:53

Petit discomycète stipité
Alain BRISSARD

Bonjour à tous Ma documentation limitée m'amè

25-03-2009 20:58

Aide pour commencer
Pablo Chacón Pablo Chacón

Bonnes nuits. Aide pour commencer. J'ai trouv

25-03-2009 17:45

Anamorphe frappante sur Nerium
Eric Strittmatter

Bonjour à tous, un ami a trouvé cette anamorp

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Bitunicate asco on bark of a leaving trunk of Fagus
Enrique Rubio, 21-03-2012 17:32
Enrique Rubio

Hi to all:
These blackish, small (up to 700 microns), gregarious, solitary, globose and semiinmersed pseudothecia  were at 2-3 m high on bark of a leaving Fagus sylvatica. They seem to be ostiolate but I'm not sure.

The spores are finally brownish or gloden brown and inconspicually 1-septate. Asci not unitunicate. Pseudoparaphyses are present.
Have you some idea ?
Many thanks again
Enrique    

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Thomas Læssøe, 21-03-2012 17:46
Re : Bitunicate asco on bark of a leaving trunk of Fagus
how about Pyrenula (lichenized)?


cheers

Thomas
Enrique Rubio, 21-03-2012 17:59
Enrique Rubio
Re : Bitunicate asco on bark of a leaving trunk of Fagus
Thank you, Thomas. I have been looking at images of Pyrenula and I believe that you are right.
Enrique
Hans-Otto Baral, 21-03-2012 18:42
Hans-Otto Baral
Re : Bitunicate asco on bark of a leaving trunk of Fagus
I have no experience with Pyrenula, but I considered that you have Navicella pileata. Torsten Richter and I investigated this species a bit, and this turned out to be quite difficult because of variation in spore size and number of cells.

Navicella is placed in Pyrenulales. Now, what about the difference to Pyrenula? A thallus only?

But now I see the spores of Enrique's fungus are much smaller than in Navicella. What is nice to see on your images is the difference of living and dead cells: roundish and with a globose drop when alive, angular and with indistnct contents when dead.

Zotto
Enrique Rubio, 21-03-2012 19:33
Enrique Rubio
Re : Bitunicate asco on bark of a leaving trunk of Fagus
Thank you again, Zotto
Enrique
Hans-Otto Baral, 21-03-2012 20:40
Hans-Otto Baral
Re : Bitunicate asco on bark of a leaving trunk of Fagus
I read that some Pyrenula species react red in KOH in the perithecium. Did you test with KOH?

Pyrenula is said to have Trentepohlia algae (with orange LBs in the cells) in their thallus. Can you find any thallus?

Zotto
Enrique Rubio, 22-03-2012 16:40
Enrique Rubio
Re : Bitunicate asco on bark of a leaving trunk of Fagus
I'm sorry, Zotto. Before could to read your message I already had shot the material