Floristical records of two lichen-forming fungi and four flowering plants are presented from Hungary. The rare lichen-species Gyalecta fagicola now is known from 7 localities in Hungary with 5 new records. Polyblastia philaea a terricolous lichen species is new to Hungary. The first confirmed record (Szentendre) of the annual weed Adonis annua, a new occurrence (Bodrog bank, Sárospatak) of Cyperus michelianus in the upper Tisza region, and a new locality of the alien weed Rapistrum rugosum from Szentendre (Bizottság-liget) are reported. The naturalised weed Polycarpon tetraphyllum has a stable, spreading population in Budapest with several thousands of individuals. Keywords: Orchidaceae, Hungary, lichen-forming fungi, vascular plants, Brassicaceae, Caryophyllaceae, Cyperaceae, Ranunculaceae.