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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

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27-08-2025 12:02

Pavol Palo

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François Freléchoux François Freléchoux

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Pyreno on Rubus
Enrique Rubio, 25-09-2015 21:14
Enrique Rubio

Hi to averybody


Maybe you know this pyreno that makes very inconspicuous uniperitheciate inmersed perithecia on Rubus canes. Perhaps it has so peculiar microscopical data that make easy the identification?


Asci IKI and Melzer negative


Thanks in advance

  • message #38103
  • message #38103
  • message #38103
Hans-Otto Baral, 25-09-2015 22:54
Hans-Otto Baral
Re : Pyreno on Rubus
Hi Enrique

I have a plate of yours named Annulusmagnus (Annulatascus) triseptatus, 10.V.2009.

maybe something like this?

Zotto
Martin Bemmann, 25-09-2015 23:23
Martin Bemmann
Re : Pyreno on Rubus
Hi Zotto and Enrique,

I had the same idea, but the apical aparatus in congo was not conspicuous enough to me. In Annulusmagnus it is very congophilous.
 Was it in moist or aquatic environment, Enrique?

Regards
Martin
Enrique Rubio, 26-09-2015 01:44
Enrique Rubio
Re : Pyreno on Rubus

Hi to both


It's sound strange because the cane is not in aquatic environnment and the ascospores seem to be smaller   (16–37 x 5–10 (Campbell & Shearer, 2004), and 24-32 x 8-10 for my own collections). But nevertheless they are similar enough...and the apical apparatus too.


The fungus was collected far from the water.


Thanks!

Hans-Otto Baral, 26-09-2015 08:57
Hans-Otto Baral
Re : Pyreno on Rubus
Your spore size is not smaller. I don't understand how it is possible to give such a wide range as Campbell & Shearer do. From their scale I arrive at ca. 23-28 x 6.5-8.5 µm.

Maybe Alain or Jacques can cmment on this sample. Do the perithecia have an elongate ostiolum?

Martin Bemmann, 26-09-2015 11:50
Martin Bemmann
Re : Pyreno on Rubus
The "16" at Campell&Shearer could be a typo for "26".
My own collections have a spore size range of 26-34x7-9 µm and 31-37x9-12 µm. So there is variation.

Regards
Martin
Alain GARDIENNET, 27-09-2015 15:57
Alain GARDIENNET
Re : Pyreno on Rubus

Hi friends,


Zotto has well recognized microscopical features of A. triseptatus. And Martin is right with ascospores size. But terrestrial habit is very strange for a such species.


Have you more informations about this fungus ? I would like to see a vertical section of perithecia.


Alain

Enrique Rubio, 27-09-2015 17:10
Enrique Rubio
Re : Pyreno on Rubus

Hi Alain


Sorry but I don't have more information about this fungus. The perithecia were found by chance inmersed on a Rubus cane together with these other http://www.ascofrance.fr/search_forum/35062, but I did not keep this material.

Jacques Fournier, 28-09-2015 14:35
Jacques Fournier
Re : Pyreno on Rubus
sorry Enrique,
I missed your post.
Most likely a member of Annulatascaceae, indeed, microscopically fitting well this family, the short twisted stipe is typical of Annulusmagnus and Annulatascus. Based on your information the ascomata are deviating in gross morphology from what we know from aquatic habitats.
I see no reason why terrestrial counterparts of Annulusmagnus would not exist.
This fungus would be worth being re-collected and sequenced. If someone is interested...
Cheers,
Jacques
Enrique Rubio, 28-09-2015 15:22
Enrique Rubio
Re : Pyreno on Rubus

HI Jacques


I'll try it!


Thanks a lot to all