Yes they do.. I think they are as potent as Cubensis, someone said that they might be even stronger. The trip is more 'blurry' and hmmm.. I don't know, somehow not as 'clear' as with Cubensis, but I think it's slightly more visual.
There are few other similar-looking shrooms growing in here, they have no effect and one of them is even very poisonous. Always careful..
I'm not sure but I think that P. Semilanceata grows all around Europe??