28-02-2026 14:43
Alain GARDIENNET
A new refrence desired :Svanidze, T.V. (1984) Novy
01-03-2026 18:46
Robin Isaksson
Hi! This species i se from time to time in the
27-02-2026 17:51
Michel Hairaud
Bonjour, Quelqu'un peut il me donner un conseil p
27-02-2026 16:17
Mathias Hass
Hi, Found this on Betula, rather fresh fallen twi
01-03-2026 18:02
Francois Guay
I found this mystery Helotiales on an incubated le
01-03-2026 14:10
Antonio Couceiro
Hola, me gustaria conocer opiniones sobre este tem
bitunicate, staining substrate purple - Leptosphaeria purpurea?
Lothar Krieglsteiner,
23-11-2023 09:46
.. 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
Lothar Krieglsteiner,
04-06-2024 20:34
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?
Does somebody know if I am write or wrong?
Andgelo Mombert,
04-06-2024 21:33
Re : bitunicate, staining substrate purple - Leptosphaeria purpurea?
Hello,
Perhaps a Amniculicola (lignicola or parva) ?
Andgelo
Perhaps a Amniculicola (lignicola or parva) ?
Andgelo
Lothar Krieglsteiner,
05-06-2024 09:44
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
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
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!
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
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
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
Re : bitunicate, staining substrate purple - Leptosphaeria purpurea?
I am missing a cross section of the ascoma