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Mot de passe perdu? S'inscrire

14-04-2021 07:54

Josep Torres Josep Torres

Hola.Unas diminutas fructificaciones globosas y de

09-04-2021 18:44

Mirek Gryc

Hi.Probably anamorph but I have never seen so big

14-04-2021 18:08

Andgelo Mombert Andgelo Mombert

Bonsoir, En passant ma récente récolte de Praet

12-04-2021 18:47

Mirek Gryc

Hi.Initially, I marked this collection as a Hyster

08-04-2021 18:36

François Bartholomeeusen

Good evening forum members, On 19 March 2021 I to

14-04-2021 11:00

Castillo Joseba Castillo Joseba

Me mandan este material seco, recolectado en caña

12-04-2021 19:35

Mirek Gryc

Hello everyone.I'm not sure if it was a branch of

10-04-2021 20:12

Andgelo Mombert Andgelo Mombert

Bonsoir, Un magnifique Nectria s.s. (?) sur branc

13-04-2021 14:01

Alain BRISSARD

Bonjour à tousS'agit-il d'une espèce de Lophoder

12-04-2021 20:09

Mirek Gryc

HiAlthough I do not see any other options, but I p

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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 :-)