11-05-2026 12:32
Bernard CLESSE
Pourriez-vous m'aider à identifier cette héloti
13-05-2026 15:26
François Freléchoux
Bonjour,Voici une récolte faite il y a quelques j
12-05-2026 15:41
Nicolas VAN VOOREN
Dear Ascolovers, especially interested in Pezizale
13-05-2026 12:05
Thierry Blondelle
Bonjour à tous,J'aimerais avoir confirmation de c
10-05-2026 23:17
Andreas Gminder
Hello,today we found in a moist steep decidous for
28-04-2026 20:07
Lothar Krieglsteiner
... on twig in the air at standing Ceratonia siliq
27-04-2026 20:52
Lothar Krieglsteiner
Found on hanging tiwg of Olea europaea in dried-ou
11-05-2026 20:22
Lothar Krieglsteiner
on attached twig of standing Ficus caricaquite uns
29-04-2026 10:44
Lothar Krieglsteiner
growing at moist, drying-out soil at the side of a
Trichopezizella rubroguttata with intrahymenial Helicogonium
Marc Detollenaere,
13-04-2023 11:29
Dear 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
Hans-Otto Baral,
13-04-2023 16:19
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
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?
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
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
Re : Trichopezizella rubroguttata with intrahymenial Helicogonium
You are right.Lasiobelonium variegatum is a match
Thanks Zotto
Thanks Zotto