Dahlia apiculata (Sherff) P.D.Sørensen (original description)
Dahlia atropurpurea P.D.Sørensen (original description)
Dahlia australis (Sherff) P.D.Sørensen (original description)
Dahlia australis var. chiapensis P.D.Sørensen (original description)
Dahlia australis var. liebmannii (Sherff) P.D.Sørensen (original description)
Dahlia australis var. serratior (Sherff) P.D.Sørensen (original description)
Dahlia brevis P.D.Sørensen (original description)
Dahlia dissecta var. sublignosa P.D.Sørensen (original description)
Dahlia mollis P.D.Sørensen (original description)
Dahlia rudis P.D.Sørensen (original description)
Dahlia rupicola P.D.Sørensen (original description)
Dahlia sherffii P.D.Sørensen (original description)
Dahlia tenuicaulis P.D.Sørensen (original description)
Eupatorium anchisteum Grashoff & Beaman accepted as Ageratina anchistea (Grashoff & Beaman) R.M.King & H.Rob. (original description)
Eupatorium ovandense Grashoff & Beaman accepted as Decachaeta ovandensis (Grashoff & Beaman) R.M.King & H.Rob. (original description)