Exclude infraspecific names

taxonomy_species_idNameSynonym ofcurrent_taxonomy_species_idaisortsortacc
418767Medicago isthmocarpa (Boiss. & Balansa) E. Small   a Medicago isthmocarpa (Boiss. & Balansa) E. Small  
418773Medicago rhytidiocarpa (Boiss. & Balansa) E. Small   a Medicago rhytidiocarpa (Boiss. & Balansa) E. Small