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14-03-2025 22:05

Yanick BOULANGER

BonsoirSur écorcePetits bâtonnets friable, tortu

16-03-2025 17:15

Ethan Crenson

Hi all, Found recently in a wooded park in New Yo

16-03-2025 15:06

Alain BRISSARD

Bonjour au forumAprès plusieurs tentatives je m'e

16-03-2025 19:17

Pavel Jiracek

Another find on a piece of Quercus Wood in Scotlan

13-03-2025 19:16

Enrique Rubio Enrique Rubio

By means of these photographs could anyone identif

16-03-2025 11:04

Nicolas VAN VOOREN Nicolas VAN VOOREN

Bonjour.Je cherche une copie de l'article suivant:

13-03-2025 16:50

Harald Homa Harald Homa

Good evening Another find I'm looking for help wi

15-03-2025 13:10

Edvin Johannesen Edvin Johannesen

These hair balls are growing on top of Nemania ser

14-03-2025 23:29

Warre Van Caenegem

Good evening everyone. Last year, I found this cop

12-03-2025 17:54

Karl Soler Kinnerbäck

Hi all!Do you agree with Scutellinia hyperborea? P

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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