21-01-2026 16:32
Gernot FriebesHi,I need your help with some black dots on a lich
29-01-2026 10:04
Jean-Paul Priou
Bonjour à tous, Marcel LECOMTE président de L'A
07-12-2015 14:17
Zugna Marino
Buon giorno a tutti, ad un primo momento, non ess
26-01-2026 11:49
Margot en Geert VullingsWe found this possible anamorph on a dead Cytisus
25-01-2026 23:23
Tomaz Vucko
Hello! I found this species that resembles Delitsc
18-01-2026 12:24
Josep Torres
Hello.An anamorph located on the surface of a thin
Clypeosphaeria mamillana?
Jenny Seawright,
28-03-2015 00:09
Hello all, This was found on a dead Eupatorium stem and the closest I can come is possibly Clypeosphaeria mamillana, though in Ellis that is given for twigs of Acer, Cornus and Quercus. Perithecia initially immersed.
Spores becoming brown and faintly 3-septate, 20-24 x 6(-7) µm.Asci tips immediately blue in Lugols. (Is it correct to describe that as IKI+blue, euamyloid?) I tried adding KOH but wasn;t very successful ....
With regards,
Jenny
Alain GARDIENNET,
28-03-2015 06:27
Re : Clypeosphaeria mamillana?
Hi Jenny,
Yes it is, I think.
It has already been seen on Rubus, Rosa, Lonicera... why not Eupatorium ?
Alain
Jenny Seawright,
28-03-2015 09:40
Re : Clypeosphaeria mamillana?
Thank you Alain
Chris Yeates,
28-03-2015 17:06
Re : Clypeosphaeria mamillana?
Those brown septate / pseudoseptate (?) ascospores certainly look like those of a Clypeosphaeria. The only Clypeosphaeria species for which I have decent descriptions / images are this and C. notarisii. If anyone has access to Barr's paper in Systema Ascomycetum 8 (1989) it would be very useful . . . .
Cordialement
Chris
Cordialement
Chris