I think these mushrooms are Coprinus micaceus- Der Glimmertintling in German. Greetings, Henryk.
Thanks for your help. I googled the name, but the pictures I saw were not yellow enough. The mushrooms were even more yellow then on the picture. I have some books of mushrooms but I couldn't find this one either.
I asked Nartreb for help, and he came withe the next one:
coprinus luteocephalus: "sulphur to citrine" in color, especially when
seems to be distinguished from most other coprinuses by having oblong
spores; known to grow on dung.
but they seem to like very damp places! Hi BazZ, how are you? It looks like you need to have some more 'Colour Red' photos in your album. I can handle that problem for you - please, don't worry about a thing!!!
Greets from the Desert man! - Larry