912:(A)
previous:805
Styles distinct.
next:913

912:(B)
Stigma(s) (sub-)sessile. (Drymis, Pseudowintera)

913:(A)
previous:912
Styles nearly completely connate. Ovule 1 per carpel.
next:914

913:(B)
Styles free.
next:916

914:(A)
previous:913
Calyx valvate. Anthers with 1 slit. Stem herbaceous. Flowers solitary. Filaments connate. Ovule 1 per carpel. Fruit dry. Endosperm present.

914:(B)
Anthers with 2 slits or pores. Calyx imbricate.
next:915

915:(A)
previous:914
Leaves translucent-glandular-punctate. Carpels warty by numerous peltate glands, Ovules 2 per carpel. Madagascar.

915:(B)
Leaves not punctate. Carpels not glandular-warty. Ovule 1 per carpel. Trees or shrubs. Stipules present. Flowers in panicles. Endosperm absent. Embryo straight.

916:(A)
previous:913
Stipules absent, rarely present, then calyx imbricate and endosperm present.
next:917

916:(B)
Stipules present. Calyx valvate. Endosperm present or not. Woody plants. Flowers in panicles. Calyx 5-fid. Carpels 5. Seeds numerous.

917:(A)
previous:916
Herbs or undershrubs. Sepals, petals, and carpels of the same number, 6-more. Stamens twice as many. Anthers dorso-versatile. Endosperm scanty or absent. Flowers bisexual. Ovules many.

917:(B)
Sepals, petals, and carpels not of the same number, rarely so, then stamens not twice as many. Anthers usually adnate or basifix. Endosperm copious, rarely scanty or absent, then shrubs or trees.
next:918

918:(A)
previous:917
Stipules absent, when present leaves alternate.
next:919

918:(B)
Stipules present. Leaves opposite. Climbing shrubs. Sepals (actually tepals) ca. 12, imbricate. Anthers petaloid, 12-25, introrse, only the outer fertile. Ovaries ca. 8, free. Styles 2-lobed. New Guinea, Queensland.

919:(A)
previous:918
Calyx usually caducous. Petals 2-4, or 6-more, rarely 5 (Ranunculaceae), then either herbs, or twining shrubs with opposite leaves. Seeds exarillate, rarely arillate, then endosperm ruminate.
next:920

919:(B)
Woody plants, leaves alternate, rarely erect shrubs with opposite leaves, or herbs with stipules. Calyx persistent, imbricate. Petals 5, rarely 6, then, as usual, seeds arillate, endosperm not ruminate; imbricate.

920:(A)
previous:919
Stem herbaceous, rarely woody, but then twining and leaves opposite. Filaments free.
next:921

920:(B)
Stem woody, climbing or erect. Leaves alternate, undivided or lobed.
next:923

921:(A)
previous:920
Aquatics with peltate, entire leaves. Flowers 3-merous. Ovule 1 per carpel, parietal, pendulous. (Brasenia: Cabombaceae)
Cabombaceae
921:(B)
Plants usually terrestrial. Leaves often incised to compound. Flowers never 3-merous.
next:922

922:(A)
previous:921
Ovules 2-more per carpel. (Helleboraceae)

922:(B)
Ovule 1 per carpel. (Ranunculoideae)

923:(A)
previous:920
Carpels many, rarely 2-6, then either ovule 1, erect, or 2-more per carpel.
next:924

923:(B)
Carpels 3-6. Ovules 2 per carpel, pendulous, descending, or patent. Leaves not translucent-glandular-punctate. Stipules absent. Flowers unisexual, in fascicles, or in racemes, or in panicles. Mericarps drupaceous.

924:(A)
previous:923
Petals 2-6. Endosperm ruminate. Stipules absent.

924:(B)
Petals 6 or more or tepals 8 or more. Endosperm absent, or if present, not ruminate.
next:925

925:(A)
previous:924
Ovaries in a whorl, 5-20. Fruit consisting of ventrally dehiscing follicles. (Magnoliaceae: Illicium)

925:(B)
ovaries spirally arranged. Fruit indehiscent or consisting of dorsally dehiscing follicles.