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15-05-2013 14:36

Recherche de publication
René Dougoud

Chers Tous,  Je recherche les publications, ci

18-05-2013 15:38

Mollisia sp sur bois
Gilles Corriol Gilles Corriol

Bonjour,Je vous soumets une récolte de Mollisia (

01-06-2008 19:10

Pyrenopeziza (Pirottaea) sur Lamium
Enrique Rubio Enrique Rubio

J'aimarais conaitre votre opinion sur cette Pyreno

17-05-2013 11:55

Peritecio en Rubus
Salvador Tello

Hola a todos.He encontrado estos peritecios en un

15-05-2013 18:50

Gibberella
Salvador Tello

Hola a todos.Este homgo lo encontré en la Sierras

25-04-2013 11:50

Cercophora Septentrionalis?
Joop van der Lee Joop van der Lee

Found on horse dung.Eventhough the spores are not

16-05-2013 20:37

Eutypicolous Unguiculariopsis from Somiedo
Enrique Rubio Enrique Rubio

Dear friends We have found these minute (up to 0.

16-05-2013 23:10

Literature request
Chris Yeates Chris Yeates

Bonsoir tousdoes anyone have access to CHECA, J.,

16-05-2013 08:24

Trochila?
Garcia Susana

HiFound this ascomycete on leaf I do not know if i

14-05-2013 21:19

Ulocladium species on Dothiora Ribesia
Ralph Vandiest Ralph Vandiest

Hello,I found a very small mycete on Dothiora ribe

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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