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23-06-2018 19:29

Thorben Hülsewig

Hi there, last week i found this anamorph on rott

24-06-2018 18:40

Andgelo Mombert

Bonsoir,Je suis en train de travailler un lachnum

22-06-2018 18:10

Jan Knuiman

Hello,Yesterday I found these discomycetes with a

23-06-2018 17:35

Nicolas VAN VOOREN Nicolas VAN VOOREN

Here is a very small Helotiales growing on rotting

24-06-2018 03:37

M Jonathan M Jonathan

Je sais qu'il manque des info, mais il est si dist

12-06-2016 23:19

Björn Wergen Björn Wergen

Hi there,today I was in Freibourg (Black Forest) f

08-06-2018 17:05

Pascal RIBOLLET

Bonjour,Trouvé sur vieux Diatrypaceae, environ 25

10-12-2013 16:45

Garcia Susana

Hi all Found these apothecia growing on old wood

23-06-2018 14:31

Castillo Joseba Castillo Joseba

en madera de abetoA ver que os pareceSaludosJoseba

22-06-2018 16:24

BERNARD CLESSE BERNARD CLESSE

Bonjour à toutes et tous,Je pense avoir trouvé P

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Diaporthale on Geranium
Enrique Rubio, 08-06-2018 18:33
Enrique RubioHi to everyone
This enigmatic diaporthale makes subepidermial, roundish, blackish, up to 250 microns in diam., perithecia with central short beak on overwintered stems of Geranium pratense at the sea level.
Thes short stipitate asci have a conspicuous refractive melzer negative apical apparatus and the non septate ascospores have polar roundish caps at the poles, only visible with chlorazol blak.
I explored keys on Gnomonia-like fungi with no success.Have you some idea for me?
Many thanks in advanceEnrique
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Alain GARDIENNET, 08-06-2018 19:46
Alain GARDIENNET
Re : Diaporthale on Geranium

Hi Enrique,


This amazing fungus is probably new.


Alain

Enrique Rubio, 08-06-2018 20:13
Enrique Rubio
Re : Diaporthale on Geranium
Hi Alain
Could you suggest me a genus?
Enrique Rubio, 08-06-2018 20:15
Enrique Rubio
Re : Diaporthale on Geranium
First, I tought in Apiognomonia, by the spore morphology, but any septa I have seen. Maybe Gnomoniella?
Alain GARDIENNET, 08-06-2018 20:53
Alain GARDIENNET
Re : Diaporthale on Geranium

Yes, because of a pseudoseptum on Melzer-photo, I thought at Apiognomonia too, but is it really a septum ? I don't think. Find the genus is difficult without molecular data, you know . Gnomoniella ? not impossible. I've no more knowledge than you.


Sorry,


Alain

Enrique Rubio, 09-06-2018 00:55
Enrique Rubio
Re : Diaporthale on Geranium
Yes. I tought this was a septum in Melzer's reagent, but since I never saw it again, I didn't think it was really a septum. Even in chlorazol black it never showed up again.
Thank you for help me, Alain.