[in Japanese with English abstract: ] Lichen flora of the Hiraoka Park (Higashiosaka City) was investigated. As a result, 25 species of 19 genera of 11 families in Arthoniomycetes, Eurotiomycetes and Lecanoromycetes were recognized. Agonimiella pacifica H.Harada and Verrucaria muralis Ach. were new to Kinki District, and Enterographa divergens (Müll. Arg.) Redinger, Hypotrachyna pseudosinuosa (Asah.) Hale and Pyxine subcinerea Stirt. were the first record in Osaka Prefecture. Key words: suburban biodiversity, cryptogamic flora, Agonimia, Enterographa, Hypotrachyna, Pyxine, Verrucaria.