Polyalthia loheri var. cagayanensis Merr. variety synonym

Polyalthia submontana subsp. submontana subspecies synonym

Polyalthia johnsonii (F.Muell.) B.Xue & R.M.K.Saunders species homotypic synonym

Polyalthia novoguineensis (H.Okada) B.Xue & R.M.K.Saunders species homotypic synonym

Polyalthia submontana (Jessup) B.Xue & R.M.K.Saunders species homotypic synonym

Polyalthia fruticosa (Jessup) B.Xue & R.M.K.Saunders species homotypic synonym

Haplostichanthus submontanus Jessup species accepted

Melodorum micranthum Warb. species synonym

Haplostichanthus novoguineensis H.Okada species accepted

Haplostichanthus gamopetala (Boerl. ex Koord.) Heusden species accepted

Polyalthia gamopetala Boerl. ex Koord. species synonym

Haplostichanthus lanceolata (S.Vidal) Heusden species accepted

Polyalthia romblonensis Elmer species synonym

Polyalthia loheri Merr. species synonym

Papualthia loheri (Merr.) Merr. species synonym

Papualthia lanceolata (S.Vidal) Merr. species synonym

Polyalthia lanceolata S.Vidal species synonym

Papualthia bakeri Elmer species synonym

Papualthia boholensis Merr. species synonym

Papualthia longipes Quisumb. species synonym

Polyalthia urdanetensis Elmer species synonym

Papualthia samarensis Merr. species synonym

Papualthia reticulata (Elmer) Merr. species synonym

Papualthia sympetala (C.B.Rob.) Merr. species synonym

Unona sympetala C.B.Rob. species synonym

Papualthia urdanetensis (Elmer) Merr. species synonym

Polyalthia reticulata Elmer species synonym

Haplostichanthus stellatus Heusden species accepted

Haplostichanthus johnsonii F.Muell. species accepted

Haplostichanthus longirostris (Scheff.) Heusden species accepted

Papualthia longirostris (Scheff.) Diels species synonym

Papualthia micrantha Diels species synonym

Goniothalamus longirostris Scheff. species synonym

Goniothalamus inaequilatera K.Schum. & Lauterb. species synonym

Papualthia rudolphi Diels species synonym

Cyathostemma grandifolium Lauterb. & K.Schum. species synonym

Papualthia pilosa Diels species synonym

Papualthia grandifolia (Lauterb. & K.Schum.) Diels species synonym

Trivalvaria longirostris Becc. ex Scheff. species synonym

Goniothalamus auriculatus Burck species synonym

Papualthia roemeri Diels species synonym

Papualthia auriculata (Burck) Diels species synonym

Haplostichanthus heteropetala (Merr.) Heusden species accepted

Papualthia heteropetala Merr. species synonym

Papualthia rudlophi Diels species synonym

Haplostichanthus rufescens Jessup species accepted

Haplostichanthus ramiflorus Jessup species accepted

Haplostichanthus fruticosus Jessup species accepted

Monostichanthus johnsonii F.Muell. species synonym

Polyalthia longirostris (Scheff.) B.Xue & R.M.K.Saunders species synonym

Polyalthia stellata (Heusden) B.Xue & R.M.K.Saunders species homotypic synonym

Polyalthia gamopetala Boerl. species homotypic synonym

Trivalvaria longirostris Becc. species homotypic synonym