05-03-2026 10:07
Hulda Caroline HolteHello, I found and collected this species growing
06-03-2026 09:41
Alain GARDIENNET
Hi forum, I'm now looking for another reference c
05-03-2026 16:30
François BartholomeeusenDear forum members, On the 2nd of February 2026,
19-02-2026 17:49
Salvador Emilio JoseHola buenas tardes!! Necesito ayuda para la ident
03-03-2026 20:34
Miguel Ángel Ribes
Good eveningThese small, amphora-shaped perithecia
--> Rebentischia unicaudata (immature) on Cytisus
William de Jong,
24-02-2021 11:51
A few days ago I found Helminthosporium velutinum/genistae (https://waarneming.nl/observation/207729435/) on a dead attached branch of Cytisus scoparius in The Netherlands. Together with this Helminthosporium I found several 8-spored asci: 63,8-76,2 x 14,7-17,3 µm. The spores are narrowed towards one side, with a sept in the middle: 32,2-35,8 x 5,3-5,6 µm. I added some pictures, one in Lugol.
Does anyone have suggestion which species this could be?
Thanks in advance. Regards, William
William de Jong,
23-01-2022 21:22
Re : Asco with Helminthosporium on Cytisus
Almost a year later ;) Has anyone any idea what this could be?
Martin Bemmann,
24-01-2022 08:57
Re : Strange ascospores with Helminthosporium on Cytisus
Hi William,
how about an unmature Rebentischia unicaudata?
Barr 1980:147 "Ascospores hyaline at first"....
Regards
Martin
Martin Bemmann,
24-01-2022 18:32
Re : Strange ascospores with Helminthosporium on Cytisus
Here is a German collection with many immature spores (collection no. 6):
William de Jong,
24-01-2022 19:16
Re : Strange ascospores with Helminthosporium on Cytisus
That seems to be it!
Thanks a lot Martin!
Thanks a lot Martin!