著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) GRAHAM S. W.,Phylogenetic congruence and discordance among one morphological and three molecular data sets from Pontederiaceae,Syst Biol,,,1998,47,,545-567,https://cir.nii.ac.jp/crid/1573950401155005056,https://doi.org/10.1080/106351598260572