Four macrofungi taxa (Conocybe filaris (Fr.) Kuhner, Hygrocybe glutinipes (J.E.Lange) R.Haller Aar. var. glutinipes, Inocybe calospora Quel., and I. margaritispora (Berk.) Sacc.) collected from Trabzon province are reported from Turkey for the first time. Comments on their habitats and substrata and a short diagnosis are provided for each new taxon new to Turkey.