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-50197508,A,Rosaceae,,Crataegus,,"tenuifolia",,"","Kom.",Unresolved,,L,TRO,50197508,724370-1,"Trudy Imp. S.-Peterburgsk. Bot. Sada","17: 435","435","1901", tro-50197509,A,Rosaceae,,Crataegus,,"tenuifolia",,"","Britton",Unresolved,,L,TRO,50197509,69079-2,"Bull. New York Bot. Gard.","1(5): 448-449","448","1900",