04-11-2025 09:07
Josep Torres
Hello.A suspected Hymenoscyphus sprouting on a thi
04-11-2025 12:43
Edvin Johannesen
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03-11-2025 21:34
Edvin Johannesen
These tiny (0.4-0.5 mm diam.), whitish, short-stip
28-10-2025 15:37
Carl FarmerI'd be grateful for any suggestions for this strik
03-11-2025 16:30
Hans-Otto Baral
Hello I want to ask you if you have found this ye
--> 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!