07-05-2024 00:04
Ethan CrensonA friend found these black gelatnous cups on a twi
06-05-2024 10:02
François BartholomeeusenGood morning,At the end of an excursion in De Zegg
05-05-2024 09:59
Gernot FriebesHello,I failed to identify this anamorph, which gr
19-04-2015 20:20
Enrique RubioHi again Could you help me with this paper? NANN
30-04-2024 16:22
François BartholomeeusenDear forum members,On April 25 2024, I found one f
03-05-2024 18:04
Riet van OostenHello, Found by Laurens van der Linde on Rubus fr
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