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28-09-2014 17:48

Gernot Friebes

Hi, this species puzzles me a bit. It grows under

28-09-2014 16:10

Margaux Boeraeve

Hi,I found this ascomycete on soil. The top of the

24-09-2014 21:33

Vasileios Kaounas Vasileios Kaounas

Could you tell me which way to look ?Diam. 1 mm.

26-09-2014 23:50

M Jonathan M Jonathan

trouvé sur un sol boueux et rocheux, asque 300-35

26-09-2014 15:15

Alessio Pierotti Alessio Pierotti

can someone help me with this work ?Booth, C.; O'R

26-09-2014 13:48

Rubén Martínez-Gil Rubén Martínez-Gil

Hola a todos. Subo unas fotos de una Pulvinula qu

26-09-2014 15:13

Alessio Pierotti Alessio Pierotti

can someone help me with this work ?Booth, C.; O'R

25-09-2014 08:22

Blasco Rafael Blasco Rafael

Hola, Tengo ESTAS Muestras Recogidas en Hayedo - a

24-09-2014 20:25

Enrique Rubio Enrique Rubio

Bonsoir les amis Peut etre j'avais recolté le me

24-09-2014 19:43

Bernard Declercq Bernard Declercq

Good evening,does anyone have following paper for

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Trichopezizella rubroguttata with intrahymenial Helicogonium
Marc Detollenaere, 13-04-2023 11:29
Marc DetollenaereDear Forum,

On a dead branch of Sambucus I found some small white discs of 1.4mm diameter with at first sight white hairs. With the microscope the hairs were brown, thickwalled and septate and measured 90-100µ.Tips were finely incrusted.Paraphyse were of 2 types, lanceolate and filiform. Ascospores were slightly curved 13.5x2.5µ and became 1-septate. There were also a lot of conidiospores with tail (20-28x2.7) from Helicogonium sp. Asci measured 78x6µ. Some croziers were seen. IKI bb. 
Could the the ascospores belong to the Helicogonium? 
Is it possible to identify the Helicogonium with these findings?
Many thanks
Marc
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Hans-Otto Baral, 13-04-2023 16:19
Hans-Otto Baral
Re : Trichopezizella rubroguttata with intrahymenial Helicogonium
Is this a woody Sambucus ? Because T. rubroguttata I remember only from herbs.

What you consider conidia are the germinating ascospores.
Marc Detollenaere, 13-04-2023 18:11
Marc Detollenaere
Re : Trichopezizella rubroguttata with intrahymenial Helicogonium
Hi Zotto,

It was indeed on a woody branch of Sambucus nigra.
If the long-tailed spores are only germinating spores, we don't have a intrahymenial parasite here?
Hans-Otto Baral, 13-04-2023 18:23
Hans-Otto Baral
Re : Trichopezizella rubroguttata with intrahymenial Helicogonium
Indeed, I see no indication for a parasite. But the substrate remains strange. Also there exist finds with or without croziers in this species. - Stop, I think it is not a Trichopezizella because the hairs are somewhat flexuous and not capitate and densely septate above. A Lasiobelonium is more probable.
Marc Detollenaere, 13-04-2023 22:09
Marc Detollenaere
Re : Trichopezizella rubroguttata with intrahymenial Helicogonium
You are right.Lasiobelonium variegatum is a match
Thanks Zotto