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01-06-2025 09:37

Charles Aron Charles Aron

Hi All, I found this Octospora growing with liver

05-07-2025 12:38

Åge Oterhals

I found this pyrenomycetous fungi in pine forest o

04-07-2025 20:12

Josep Torres Josep Torres

Hello.A fungus growing on the surface of a trunk o

20-06-2025 08:33

Josep Torres Josep Torres

Hello.Small, blackish, mucronated surface grains s

28-06-2025 16:00

Josep Torres Josep Torres

Hello.A tiny fungus shaped like globose black grai

04-07-2025 12:43

Castillo Joseba Castillo Joseba

me mandan el material seco de Galicia (España) 

03-07-2025 18:40

Castillo Joseba Castillo Joseba

me mandas el material seco de Galicia (España) re

03-07-2025 20:08

Francois Guay Francois Guay

I found this interesting yellowish asco growing on

01-07-2025 23:37

Josep Torres Josep Torres

Hello.A Pleosporal symbiotic organism located and

02-07-2025 17:26

Yanick BOULANGER

BonjourRécolté sur une brindille au fond d'un fo

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Hydropisphaera (Nectria) peziza?
Gernot Friebes, 10-12-2014 11:04
Hi,

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.

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Gernot Friebes, 10-12-2014 11:07
Re : Hydropisphaera (Nectria) peziza?
Photos 1, 2: culture. 3–11: hyphae, conidia and conidiophores (sometimes coiled – ?).
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Walter Gams, 10-12-2014 12:58
Walter Gams
Re : Hydropisphaera (Nectria) peziza?
Lieber Gernot,
Die Anamorphe von H. peziza ist ausführlich beschrieben in meinem Cephalosporium-Buch (Gams 1971, G. Fischer). Deine Abbildungen stimmen dafür.
Herzlichen Gruß  Walter
Gernot Friebes, 10-12-2014 15:17
Re : Hydropisphaera (Nectria) peziza?
Lieber 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