01-02-2026 19:29
Nicolas Suberbielle
Bonjour, Marie-Rose D'Angelo (Société Mycologiq
31-01-2026 10:22
Michel Hairaud
Bonjour, Cette hypocreale parasite en nombre les
02-02-2026 09:29
Bernard CLESSE
Bonjour à toutes et tous,Pour cette récolte de 2
31-01-2026 09:17
Marc Detollenaere
Dear Forum,On decorticated wood of Castanea,I foun
29-08-2025 05:16
Francois Guay
I think I may have found the teleomorph of Dendros
30-01-2026 21:20
Arnold BüschlenBryocentria brongniartii und B. metzgeriae mit ihr
21-01-2026 16:32
Gernot FriebesHi,I need your help with some black dots on a lich
07-12-2015 14:17
Zugna Marino
Buon giorno a tutti, ad un primo momento, non ess
29-01-2026 10:04
Jean-Paul Priou
Bonjour à tous, Marcel LECOMTE président de L'A
unknown pyrenomycet 2
Gernot Friebes,
29-03-2009 15:18
here is my second pyrenomycet I found yesterday. It grew on a thin twig of a deciduous tree. Spores: 21-23 x 5,5-6,5 µm.
Best wishes,
Gernot Friebes
Gernot Friebes,
29-03-2009 15:19
Re:unknown pyrenomycet 2
perithecia
Gernot Friebes,
29-03-2009 15:24
Re:unknown pyrenomycet 2
spores
Jacques Fournier,
29-03-2009 15:35
Re:unknown pyrenomycet 2
Hi again,
the large allantoid spores could fit Eutypella dissepta (Diatrypaceae) but you need further data to support it.
Please make a vertical section to see how perithecia are arranged, and two slides: one in water or Congo red to see if asci are spindle-shaped and long stipitate, another in Melzer's reagent after pretreatment in 3% KOH to check the presence and reaction of apical ring.
More soon!
Jacques
the large allantoid spores could fit Eutypella dissepta (Diatrypaceae) but you need further data to support it.
Please make a vertical section to see how perithecia are arranged, and two slides: one in water or Congo red to see if asci are spindle-shaped and long stipitate, another in Melzer's reagent after pretreatment in 3% KOH to check the presence and reaction of apical ring.
More soon!
Jacques
Gernot Friebes,
29-03-2009 18:09
Re:unknown pyrenomycet 2
Hello Jacques,
thank you for your good tip. The asci are indeed long stipitate and don't have any reactions in Melzer's reagent.
At first a picture of the perithecia.
Best wishes,
Gernot
thank you for your good tip. The asci are indeed long stipitate and don't have any reactions in Melzer's reagent.
At first a picture of the perithecia.
Best wishes,
Gernot
Gernot Friebes,
29-03-2009 18:09
Re:unknown pyrenomycet 2
spores and asci
Jacques Fournier,
29-03-2009 18:22
Re:unknown pyrenomycet 2
in Eutypella dissepta the apical ring often does not react clearly with iodine. The configuration of the perithecia within the stroma fits E. dissepta. Moreover, the structure of the wood in cross section is much like that of Ulmus, the usual host of this fungus.
I think you can keep this name
Jacques
I think you can keep this name
Jacques