taxonomic status

Is Phoma rumicicola a synonym of Phoma acetosellae? Both species were described from Rumex and distinguished morphologically by Boerema et al. (2004). All of the putative P. rumicicola isolates from New Zealand we sequenced, including the ex-type isolate (ICMP 10965, CBS 683.79), match genetically cultures accepted by CBS as P. acetosellae (e.g. CBS 179.97, ex Aveskamp et al. 2010). If the P. acetosellae identificationms are correct, then the two species are synonyms and P. acetosellae will be the oldest name. [PRJ]