31-03-2026 21:18
Miguel Ángel Ribes
Good evening. oes anyone have the original descrip
31-03-2026 20:57
Stefan BlaserHello everybody, I hope somebody can help me with
26-03-2026 15:31
Åke Widgren
Hello,I found this one in October last year, on r
31-03-2026 16:20
Mlcoch Patrik
Hello, Please about help with determination. On
31-03-2026 08:19
Bernard CLESSE
Bonjour à toutes et tous,Pourriez-vous m'aider à
30-03-2026 12:03
William Slosse
Hello all,On 27/03/26, in Kraaiveld in Wingene (Be
25-03-2026 10:35
Hulda Caroline HolteHello,I collected this species growing on a dead b
30-03-2026 09:53
Yanick BOULANGERBonjourVoici des petites fructifications poilues s
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