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Mot de passe perdu? S'inscrire

17-07-2024 22:37

Peter Welt Peter Welt

Who can help? Arx, J.A. von. 1973. Ostiolate and

16-07-2024 18:32

Andgelo Mombert Andgelo Mombert

Bonsoir, Un discomycète sur Liochlaena lanceolat

17-07-2024 16:29

Andgelo Mombert Andgelo Mombert

Hello,A colleague found an unknown fungus on the s

17-07-2024 10:53

Hans-Otto Baral Hans-Otto Baral

I have a question about the scaling of illustratio

17-07-2024 08:35

Peter Welt Peter Welt

Who can help? Malloch, D.; Hubart, J.-M. 1987. An

17-07-2024 11:33

Angel Pintos Angel Pintos

Hello, anybody body has:Pande A. and Rao, V.G. (1

11-01-2022 16:36

Jason Karakehian Jason Karakehian

Hi does anyone have a digital copy of Raitviir A (

24-08-2020 13:00

Yulia Lytvynenko Yulia Lytvynenko

Dear friends.Looking for a copy of the following w

11-07-2024 14:29

Viktorie Halasu Viktorie Halasu

Hello, a thin-fleshed Mollisia on a monocot stem

15-07-2024 10:38

Joaquin Martin

Hi, I found this Ascobolus in company of Cheilyme

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bitunicate, staining substrate purple - Leptosphaeria purpurea?
Lothar Krieglsteiner, 23-11-2023 09:46
Lothar Krieglsteiner.. found 19.11.23 in the Schwäbische Alb, Germany, on old stems of Sambucus ebulus lying on the ground. 
The spores are about 24-30(34)/4-5,5(6,5) µm large, and (3)-5-septate, constricted at the septa, at first hyaline, but I found older spores stained dark (blackish).
As I know there are other ascomycetes staining the substrate, I would appreciate your opinion.
Yours, Lothar
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Lothar Krieglsteiner, 04-06-2024 20:34
Lothar Krieglsteiner
Re : bitunicate, staining substrate purple - Leptosphaeria purpurea?
As there was no reaction to this post, I would try again to get one.
Does somebody know if I am write or wrong?

Andgelo Mombert, 04-06-2024 21:33
Andgelo Mombert
Re : bitunicate, staining substrate purple - Leptosphaeria purpurea?
Hello,

Perhaps a Amniculicola (lignicola or parva) ?

Andgelo
Lothar Krieglsteiner, 05-06-2024 09:44
Lothar Krieglsteiner
Re : bitunicate, staining substrate purple - Leptosphaeria purpurea?
Hello Angelo,
thank you for your interesting suggestion that I will follow and later response.
I once before had a species of this genus:
http://www.ascofrance.fr/search_forum/64573
It was growing submersely on wood, so had a very different ecology. But ...
Tahnka again and best regards,
Lothar
Hardware Tony, 05-06-2024 18:24
Hardware Tony
Re : bitunicate, staining substrate purple - Leptosphaeria purpurea?
Hi Lothar,

I guess you know that this was on wood and not herbaceous, but you mentioned stems, so just checking with Lophiostoma origani var. rubidum, normally only on Epilobium and other plants but pink stains and appears immersed through the substarte, spores close etc., and has variable septa. Normally has colourless appendages. Also species from Herpotrichia get close, but again mostly herbaceous.  Not much help perhaps. Wood is wood!
Lothar Krieglsteiner, 05-06-2024 18:36
Lothar Krieglsteiner
Re : bitunicate, staining substrate purple - Leptosphaeria purpurea?
Hi Tony,
thank you very much for your proposals - I will look at them and maybe they will prove to be valuable. Anniculicula grows on wood, typically, and that was what made me hesitate at once. Sambucus ebulus is not woody (in opposite to other species of the genus) and so your proposal of Lophiostoma could be good. I will check and write again.
Yours, Lothar

Franz Berger, 05-06-2024 20:31
Franz Berger
Re : bitunicate, staining substrate purple - Leptosphaeria purpurea?
I am missing a cross section of the ascoma