Melocactus nagyi Lectotype: Cuba, [Granma Province], near the coast between La Mota and El Macío, on the steep southern rock walls of Sierra Maestra, southern coast of Cuba, [in label: Oriente [Prov. Granma] Sierra Maestra, La Mota], Jan 1975, Mészáros & Nagy s.n. (HAC: No. SV 27866, isolectotype: HAC No. SV 27867)