ID,Major group,Family,Genus hybrid marker,Genus,Species hybrid marker,Species,Infraspecific rank,Infraspecific epithet,Authorship,Taxonomic status in TPL,Nomenclatural status from original data source,Confidence level,Source,Source id,IPNI id,Publication,Collation,Page,Date,Accepted ID kew-2781897,A,Cactaceae,,Echinocactus,,"horizonthalonius",,"","Lem.",Accepted,,M,WCSP (in review),,131879-1,"Cact. Gen. Sp. Nov.","19","","1839", kew-2781898,A,Cactaceae,,Echinocactus,,"horizonthalonius",var.,"centrispinus","Engelm.",Synonym,,L,WCSP (in review),,87437-2,"Proc. Amer. Acad. Arts","3: 276","","1856",kew-2781897 kew-2781899,A,Cactaceae,,Echinocactus,,"horizonthalonius",f.,"centrispinus","(Engelm.) Schelle",Synonym,,L,WCSP (in review),,87436-2,"Kakteen","186","","1926",kew-2781897 kew-2781900,A,Cactaceae,,Echinocactus,,"horizonthalonius",var.,"curvispinus","Salm-Dyck",Synonym,,L,WCSP (in review),,87439-2,"Cact. Hort. Dyck.","ed. 2: 146","","1850",kew-2781897 kew-2781901,A,Cactaceae,,Echinocactus,,"horizonthalonius",f.,"curvispinus","(Salm-Dyck) Schelle",Synonym,,L,WCSP (in review),,87438-2,"Handb. Kakteenkult.","146","","1907",kew-2781897 tro-50335272,A,Cactaceae,,Echinocactus,,"horizonthalonius",subsp.,"horizonthalonius","",Accepted,,L,TRO,50335272,,"","","","1839", kew-2781903,A,Cactaceae,,Echinocactus,,"horizonthalonius",var.,"nicholii","L.D.Benson",Synonym,,L,WCSP (in review),,87440-2,"Cacti Ariz.","ed. 3: 23","","1969",kew-2781904 kew-2781904,A,Cactaceae,,Echinocactus,,"horizonthalonius",subsp.,"nicholii","(L.D.Benson) U.Guzmán",Accepted,,L,WCSP (in review),,70029538-1,"Cactaceae Syst. Init.","16: 17","","2003", kew-2781905,A,Cactaceae,,Echinocactus,,"horizonthalonius",var.,"obscurispinus","Rud.Mey.",Synonym,,L,WCSP (in review),,87442-2,"Monatschr. Kakteenk.","21: 181","","1911",kew-2781897 kew-2781906,A,Cactaceae,,Echinocactus,,"horizonthalonius",f.,"obscurispinus","(Rud.Mey.) Schelle",Synonym,,L,WCSP (in review),,87441-2,"Kakteen","186","","1926",kew-2781897 kew-2781907,A,Cactaceae,,Echinocactus,,"horizonthalonius",var.,"subikii","Staník & Dráb",Synonym,,L,WCSP (in review),,1010864-1,"Cactaceae (Bratislava)","8: 8","","1998",kew-2781897