Melocactus neoviridescens Guiggi in Cactology 5 (Suppl. 10): 2. 2020 Melocactus neoviridescens Guiggi in Cactology 5 (Suppl. 10): 2. 2020is new name for Melocactus pachyacanthus subsp. viridis N.P.Taylor in Bradleya 9: 40–41. 1991Taxon for this nameMelocactus neoviridescens Guiggi