Polycarpon diphyllum Cav., Icon. 2: 40. 1793 Polycarpon diphyllum Cav., Icon. 2: 40. 1793is basionym for Polycarpon tetraphyllum subsp. diphyllum (Cav.) O. Bolòs & Font Quer in Collect. Bot. (Barcelona) 6: 356. 1962Taxon for this namePolycarpon diphyllum Cav., Icon. 2: 40. 1793