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18-01-2021 17:35

Andgelo Mombert Andgelo Mombert

Bonsoir, Tout d'abord, toutes mes excuses pour le

17-01-2021 17:45

Joaquin Martin

Hi, I have found this tiny Ascomycete on pinus sy

15-01-2021 20:43

Enrique Rubio Enrique Rubio

This pyrenomycete grew inconspicuously on Ulex woo

26-01-2020 09:52

Riet van Oosten Riet van Oosten

Hello, Found by Gerrit Reitsma on Juncus effusus,

17-01-2021 18:24

Archie McAdam

The asco was a small greyish disco growing on the

18-01-2021 11:34

Karl Gumbinger

Dear mushroom friends,I got a piece of bark from a

17-01-2021 23:37

Garcia Susana

Hola, He encontrado este hyphomycete que no consi

13-01-2021 21:38

Dirk Baert

Dag Allen, Deze gevonden op schors van een afgeva

15-01-2021 22:07

Riet van Oosten Riet van Oosten

Hello, Found by Adria Klumpers, The Netherlands,

15-01-2021 11:36

Castillo Joseba Castillo Joseba

Me mandan el material seco de Galicia,  recolecta

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small discomycete (aff. Durella?)
Lothar Krieglsteiner, 03-01-2016 13:54
Lothar Krieglsteiner

found yesterday near Stuttgart (Ludwigsburg-Poppenweiler, "Zipfelbachtal") on a twig of deciduous wood (likely Fraxinus).


The asci are without crozieres, 8-spored, and IKI-positive (blue, Calycina-type). The paraphyses and the marginal cells of the excipulum contain very conspicuous vacuolar bodies. The spores are multiguttulate when alive, about 21-26/5,5-7 µm large. subfusiform. The excipulum is of prismatic cells with interspace.


Can somebody provide me with a hint?


Regards and best wishes for 2016 to everybody,


from Lothar

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Hans-Otto Baral, 03-01-2016 15:20
Hans-Otto Baral
Re : small discomycete (aff. Durella?)
Hallo Lothar

I have no idea yet. How large atre the apos or how thick the branch? Fraxinus is quite easily recognizable.

Allophylaria macrospora could be a possibility although the partly larger oil drops are irritating.
A photo of the apical ring in IKI (in the dead state) could be helpful. Are the apos short-stalked?

Zotto
Lothar Krieglsteiner, 03-01-2016 15:42
Lothar Krieglsteiner
Re : small discomycete (aff. Durella?)

Hi Zotto,


thank you very much for your first opinion. I will do a dead stain of the ascus tomorrow - unfortunately today I won`t have time any more. But I have kept the material alive in a box. For the moment I add two fotos of the IKI in living ascus apices.


Allophylaria could be a good idea in fact. The apothecia (small, I guess about 0,5 mm when larger) have very short but distinct stalks.


Best regards from Lothar


 

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Lothar Krieglsteiner, 03-01-2016 15:45
Lothar Krieglsteiner
Re : small discomycete (aff. Durella?)

... I forgot: the branch is quite thin, a bit more than 1 cm thick.


Regards Lothar

Lothar Krieglsteiner, 03-01-2016 15:47
Lothar Krieglsteiner
Re : small discomycete (aff. Durella?)

... and: the spore-drops are confluent to large bodies when they die (what else should they do ....) and in most spores I saw (especially in turgescent asci) they contained only small to very small guttules. The spores in the one picture may have begun to degrade already ...


Regards Lothar

Hans-Otto Baral, 03-01-2016 16:36
Hans-Otto Baral
Re : small discomycete (aff. Durella?)
Yes, then I think it is clearly A. macrospora, including the lackin croziers.
Lothar Krieglsteiner, 03-01-2016 17:04
Lothar Krieglsteiner
Re : small discomycete (aff. Durella?)
thank you very much - merci beaucoup - vielen Dank - hvala lijepa - muchas gracias :-)