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31-08-2025 17:32

Michel Hairaud Michel Hairaud

Bonjour, Pas d'identité trouvée pour cette réc

31-08-2025 19:41

Enrique Rubio Enrique Rubio

Hi to someone.I need to download this issue of Sve

31-08-2025 14:34

Thomas Flammer

I have found a Rutstroemia on abt. 2000 m on Alnus

29-08-2025 19:04

Thomas Flammer

Spores 21.2 - 26.2 x 8.3 - 11.3 µm - Q: 2.20 - 2.

30-08-2025 18:29

Joaquin Martin

Hi,I found this undetermined ascomycete on broadle

28-08-2025 17:24

Thomas Flammer

I know, that this is not the real topic of this fo

29-08-2025 05:16

Francois Guay Francois Guay

I think I may have found the teleomorph of Dendros

24-08-2025 21:59

Edmond POINTE Edmond POINTE

Bonsoir amis mycologues,Trouvé sur crottin de che

27-08-2025 12:02

Pavol Palo

Hello dear friendsI would like to ask for sharing

25-08-2025 17:37

François Freléchoux François Freléchoux

Bonjour,Nous avons trouvé samedi dernier à l'ét

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Bertia-related pyrenomycete?
Hans-Otto Baral, 11-03-2009 22:48
Hans-Otto BaralHi

I have here a pyreno with unitunicate asci that dissolve during maturity, the spores of which remind me of Bertia latispora. But the perithecia are smooth.

Descr.: 0.3-0.5 mm diam. Asci 6-8-spored, unitunicate, IKI-. Spores 23-35 x 8-11 µm, containing many minute LBs, 1-septate, very variable in shape.

Subaquatic on very rotten wood of Salix (or Populus), N-Germany (near Rehna, leg. T. Richter).

Zotto
  • message #7078
Hans-Otto Baral, 11-03-2009 22:51
Hans-Otto Baral
Re:Bertia-related pyrenomycete?
Most of the perithecia collapsing when dry, often laterally flattened, not from top as in Nitschkia.

any idea?
  • message #7079
Hans-Otto Baral, 13-03-2009 22:17
Hans-Otto Baral
Re:Bertia-related pyrenomycete?
Sorry, I corrected in the previous message that the perithecia often collapse.

Zotto
MARIA VIRGINIA BIANCHINOTTI, 17-03-2009 21:10
Re:Bertia-related pyrenomycete?
Dear Zotto,
Have you seen Munk pores? Your ascospores are slightly similar to those of Bertia pulneyensis.

Virginia
Hans-Otto Baral, 17-03-2009 22:32
Hans-Otto Baral
Re:Bertia-related pyrenomycete?
Dear Maria

thanks, is it an Indian species? Where is it described? What do you mean with Munk pores?

Zotto
MARIA VIRGINIA BIANCHINOTTI, 18-03-2009 15:15
Re:Bertia-related pyrenomycete?
Yes, it is an Indian species described by Subramanian & Sekar in Kavaka 18: 19-90 (1990). Munk pores are small perforations that appear in the ascomatal cells. they are typical (but not exclusive) of the Coronophorales. Here are 2 photos of them.
  • message #7145
MARIA VIRGINIA BIANCHINOTTI, 18-03-2009 15:15
Re:Bertia-related pyrenomycete?
Yes, it is an Indian species described by Subramanian & Sekar in Kavaka 18: 19-90 (1990). Munk pores are small perforations that appear in the ascomatal cells. they are typical (but not exclusive) of the Coronophorales. Here are 2 photos of them.

Virginia

  • message #7146
MARIA VIRGINIA BIANCHINOTTI, 18-03-2009 15:17
Re:Bertia-related pyrenomycete?
sorry Zotto I attached just one taken with SEM. Here goes the second
  • message #7147
Hans-Otto Baral, 18-03-2009 18:45
Hans-Otto Baral
Re:Bertia-related pyrenomycete?
Dear Maria

so they are pores in the wall of the peridial cells? Are they in the lateral wall between the peridial cells? Present in every cell or only locally? I will try to locate this feature.

Zotto
MARIA VIRGINIA BIANCHINOTTI, 18-03-2009 18:57
Re:Bertia-related pyrenomycete?
Dear Zotto, yes they are pores, not in every cell, randomly, 1 or2, sometimes more per cell, also in the lateral wall between cells. I´ve put a pdf of a paper in which you´d see more images.
Virginia
Hans-Otto Baral, 22-03-2009 21:46
Hans-Otto Baral
Re:Bertia-related pyrenomycete?
Dear Virginia
I tried some photos but I could not verify Munk-pores. The problem is that oil drops can easily be taken for pores. Mounts are in KOH.
  • message #7201
Hans-Otto Baral, 22-03-2009 21:46
Hans-Otto Baral
Re:Bertia-related pyrenomycete?
another
  • message #7202