[plants] Haeckel (1866) - plants
   vascular plants see Phylum Tracheophyta Sinnott ex Caval.-Sm. (1998)
     euphyllophytes see Clade Euphyllophyta Lecointre & Le Guyader 2006 [Cantino & Donoghue 2020]
       Spermatophyta Britton & Brown 1896 [Crane & Kenrick 1997], nom. cl. inval. - seed plants see Clade Spermatophyta Britton & Brown 1896 [Cantino, Doyle & Donoghue 2020]
         Class Magnoliopsida Brongn. (1843)
           Monocotyledons see Superorder Lilianae Takht. (1967)
             Commelinids see Clade Commelinidae Takhtajan 1967 [Graham, Saarela & Judd 2020]
               Order Arecales Bromhead (1840) - palms
                 Family Palmae Juss. (1789), nom. cons. see Family Arecaceae Bercht. & J.Presl (1820), nom. cons.
                   Subfamily Arecoideae
                     Tribe Areceae Dumort. (1829)
                       Subtribe Ptychospermatinae Benth. & Hook.f. (1883)
                         1 Genus Ptychosperma Labill. (1809)
                         2 Genus Veitchia H.Wendl. (1868), nom. cons.