The main target for the observations of the last end-of-week was: mushrooms living on dung in open spaces. Sporadically in the past I did some similar raids. As the main place for these observations I choose one that has a lot of livestock, mainly cattle but also sheep and horses. This location is contiguous to my previous place of observations in this part of the country, Serra de S. Mamede, and together constitute one of the Natural parks of the country: Parque Natural da Serra de S. Mamede. As you will see there is some diversity among the specific target, especially of the genera Panaeolus and Deconica, but other potentially are present, at least judging by the macroscopic characteristics, as Bolbitius, Conocybe, Pholiotina, Protostropharia as well as some coprinoid mushrooms (whose genera are more difficult to distinguish based only on the macroscopic characteristics). Particularly for the genus Panaeolus there was a basic question to clarify: although in the past several names have been proposed for some of my observations, P. papilionaceous species clearly stands out, and it is not guaranteed that the others belong to different species. Now I can say that there are indeed other species present, since continuing to judge based on macrocopy, some of them have specific characteristics. With the passage of time will have the opportunity to perform some microscopy and then classify with greater assurance the species present. Attached to this obervation I attach a photo frame that illustrates the diversity of this genus at this location. As initial observations of this series I chose precisely some which I think represent P. acuminatus, a surprisingly widespread species at this location.