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 tro-50306205,A,Rosaceae,,Pyrus,,"sitchensis",,"","(M. Roem.) Piper",Synonym,,M,TRO,50306205,215216-2,"Mazama","2(2): 107","107","1901",tro-50125470 tro-50306206,A,Rosaceae,,Pyrus,,"sitchensis",var.,"californica","(Greene) Smiley",Synonym,,L,TRO,50306206,215217-2,"Univ. Calif. Publ. Bot.","9: 233","233","1921",tro-27802852