Loxanthocereus formosus (F.Ritter) Buxb. in Krainz, Kakteen 57: CV c. 1974 Loxanthocereus formosus (F.Ritter) Buxb. in Krainz, Kakteen 57: CV c. 1974is new combination for Matucana formosa F.Ritter in Taxon 12: 125. 1963Taxon for this nameLoxanthocereus formosus (F.Ritter) Buxb.