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11-04-2026 13:34

Artem Ptukha

Hello, I am seeking assistance with the identific

11-04-2026 10:42

Castillo Joseba Castillo Joseba

Me mandan el material de Galicia, España, recolec

11-04-2026 10:19

Michel Hairaud Michel Hairaud

Chers amis d'Ascofrance , voici une très bonne no

11-04-2026 10:10

Michel Hairaud Michel Hairaud

Dear Ascofrance members, here is some very good ne

10-04-2026 23:22

Gernot Friebes

Hi,ascospores are 1- to 3-septate, approximately 

10-04-2026 15:51

William Slosse William Slosse

Hello everyone, On 08/04/26, I found a growth sit

09-04-2026 15:25

Jac Gelderblom

On bare soil between mosses Ifound an asco I deter

09-04-2026 13:55

Thomas Læssøe

https://svampe.databasen.org/observations/10589176

09-04-2026 10:12

Thomas Læssøe

https://svampe.databasen.org/observations/10587061

08-04-2026 20:33

Vasileios Kaounas Vasileios Kaounas

Found 07-04-26, in Abies cephalonica. Diameter 1,

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Black with Helianthus tuberosus?
Mirek Gryc, 25-05-2022 13:07
Hello all
Perithecia grew on Helianthus tuberosus. Completely unknown to me, so I won't even suggest a kind. As I see with such spores, we have a lot of species to choose from.
Any hints to direct me to a kind?
Thank you in advance and sorry for the poor documentation.
Regards
Mirek
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Luc Bailly, 27-05-2022 10:33
Luc Bailly
Re : Black with Helianthus tuberosus?
With compressed neck? I'd suggest you to look among Lophiostoma.
Mirek Gryc, 30-05-2022 12:37
Re : Black with Helianthus tuberosus?
Hi Luc.
Looking at the microscopic features, Lophiostoma was also my first thought. However, the construction of perithecia is very unusual?
All perithecia look very similar so this is not an accident.
However, I have no other idea.
A few more sections taken (transverse and oblong).
Thank you Luc.
Mirek
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Josep Torres, 31-05-2022 14:28
Josep Torres
Re : Black with Helianthus tuberosus?
Esta morfología esporal bien podrías ser de Lophiostoma como sugiere Luc, teniendo en cuenta el sustrato, quizás Lophiostoma helianthemi?.
Saludos.
Mirek Gryc, 04-06-2022 12:41
Re : Black with Helianthus tuberosus?
Thank you Josep!
I come to the conclusion that this kind is too difficult for me.
However, I am not discouraged, I will continue to study them to learn more about the characteristic features of their construction.
I looked at the literature on them, I found similar several genres but I can't decide on any of them, I lack certainty.
Lophiostom macrostomum also seems similar?
Regards
Mirek