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
this species grows on dead culms and leaves of Heracleum mantegazzianum. I think it is something close to Hydropisphaera (Nectria) peziza but I have read on this forum that this might be a species complex so I would be interested to hear your opinion on this find – especially since the substrate seems somewhat unusual for this species. Ascospores measure about 10-11 x 5 µm and are striate. The ascomatal wall shows no reaction to KOH and it is smooth except for a few hyphae-like hairs in the lower part. The culture on MEA was examined after 14 days (room temperature, day/night light). I could not find a description of the anamorphic state of H. peziza but in Rossman et al. (1999, SiM 42) it is said to be an Acremonium sp. and I think that fits quite well.
Best wishes,
Gernot
Photos 1,2: fresh ascomata. 3: dry ascomata. 4–6: ascospores. 7: hairs on the ascomatal wall. Photos are not mine.
Die Anamorphe von H. peziza ist ausführlich beschrieben in meinem Cephalosporium-Buch (Gams 1971, G. Fischer). Deine Abbildungen stimmen dafür.
Herzlichen Gruß Walter
danke für die Bestätigung! Das Buch hab ich leider nicht und es scheint auch in der Uni-Bibliothek hier nicht vorhanden zu sein. Aber jetzt hast du mir ja die Beschreibung geschickt, dafür nochmals herzlichen Dank!
Schöne Grüße
Gernot