690:(A)
previous:659
Placenta(s) central, or axillary, or apical.
next:693

690:(B)
Placentas parietal. Sepals and petals 4. Endosperm absent. Embryo curved.
next:691

691:(A)
previous:690
Calyx 4- or 5-lobed. Petals 5. Ovary with a longitudinal false sept. Herbs or shrubs. (Astragalus)

691:(B)
Sepals 4. Petals 4. Endosperm absent. Embryo curved.
next:692

692:(A)
previous:691
Filaments all equal in length. Undershrubs.

692:(B)
Filaments unequal in length. Corolla actinomorphic or radiate, not spurred. Stamens free or 4 pairwise connate; anthers 2-locular. Endosperm scanty or absent. Embryo large, curved.

693:(A)
previous:690
Stamens as many as the petals, or less.
next:694

693:(B)
More stamens than petals.
next:704

694:(A)
previous:693
Stamens as many as the petals, or less, then bracts of the sterile flowers (if any) not strongly modified.
next:695

694:(B)
Petals 5. Stamens 3. Bracts of sterile flowers modified, saccate, pitcher-like, or spathulate, brightly coloured.

695:(A)
previous:694
Anthers free.
next:696

695:(B)
Anthers connate around the ovary. Herbs, rarely shrub-like. Flowers zygomorphic. Petals and stamens 5.

696:(A)
previous:695
Flowers actinomorphic or nearly so.
next:697

696:(B)
Flowers zygomorphic. Woody plants. Petal and fertile stamen 1. C. , S. America.

697:(A)
previous:696
Trees or shrubs, rarely herbs. Leaves simple, undivided, or digitately compound. Stipules usually present, sometimes absent. Flowers 3 - 5-merous.
next:698

697:(B)
Herbs. Leaves 3-foliolate. Stipules absent. Flowers 8-merous. C. , S. -America.

698:(A)
previous:697
Stamens epipetalous. Filaments usually connate.
next:699

698:(B)
Stamens alternipetalous. Filaments free. Calyx imbricate.
next:700

699:(A)
previous:698
Leaves simple. Anthers 2-locular, locules rarely sub-confluent at the apex. Calyx valvate.

699:(B)
Leaves digitately compound. Anthers 1-locular. Stipules present.

700:(A)
previous:698
Well-developed leaves present. Fruit a loculicid capsule or indehiscent.
next:701

700:(B)
Leaves reduced to minute scales. Fruit an apically irregularity septicide capsule. Texas, Mexico. (Canotia, also in Koeberliniaceae)
Koeberliniaceae
701:(A)
previous:700
Leaves either serrate or with 3 apical teeth. Ovary 3- or 5-locular.
next:702

701:(B)
Leaves entire. Ovary 1- or 2-locular.

702:(A)
previous:701
Leaves either with 3 apical teeth, or glandular serrate, without long club-shaped glands. Ovary 3- or 5-locular. America or Australia.
next:703

702:(B)
Leaves usually pinnatifid, with long club-shaped glands. Ovary 3-locular. S. Africa.

703:(A)
previous:702
Leaves with 3 apical teeth. Ovary 3-locular. S. America. ( Tribelaceae)
Tribelaceae
703:(B)
Leaves glandular-serrate. Ovary 5-locular. N. E. Australia. (Abrophyllum , Cuttsia, also included in Escalloniaceae)
Escalloniaceae
704:(A)
previous:693
Stamens 6 - 1 0.
next:705

704:(B)
Stamens 5. Herbs or undershrubs. Flowers zygomorphic. Petals 3. Anthers connate.

705:(A)
previous:704
Anthers with apical pores.
next:706

705:(B)
Anthers with 2 longitudinal slits, sometimes poriform, but opening from the base up.
next:709

706:(A)
previous:705
Anthers with 2 apical pores. Calyx and corolla imbricate.
next:707

706:(B)
Anthers with 1 apical pore. Calyx valvate, corolla induplicative-valvate. Ovary 2-locular. Australia.

707:(A)
previous:706
Stipules absent. Anthers dorso-versatile.
next:708

707:(B)
Stipules present. Anthers basifix-adnate. Stem woody. Ovary 3-5-locular.

708:(A)
previous:707
Herbs. Ovary 5-locular.

708:(B)
Woody plants. Ovary 3-locular.

709:(A)
previous:705
Sepals valvate. Leaves alternate, simple, rarely absent. Sepals free or connate.
next:710

709:(B)
Sepals imbricate or apert. Leaves compound, or simple, then if also alternate, either without stipules, or stamens free.
next:713

710:(A)
previous:709
Filaments free.
next:711

710:(B)
Filaments connate. Stipules present. Sepals usually connate.

711:(A)
previous:710
Woody plants. Stamens 8. Ovary long-stipitate. Stigma usually sessile. Fruit a berry. Endosperm absent. Embryo curved.

711:(B)
Herbs or undershrubs. Stamens 10. Ovary sessile, rarely with an androgynophore. Style present. Fruit a capsule. Endosperm present. Embryo straight. Flowers yellow.
next:712

712:(A)
previous:711
Staminodes absent. (Corchorus)

712:(B)
Staminodes present. (Corchoropsis also in Sterculiaceae)

713:(A)
previous:709
Stipules present. Leaves not translucent-glandular-dotted. Stamens free. Anthers dorsifix. Endosperm present.
next:714

713:(B)
Stipules absent.
next:715

714:(A)
previous:713
Leaves compound. Flowers solitary, or in dichasia, or in fascicles. Aril absent. Leaves usually opposite. Flowers 4- or 5-merous. Fruit a capsule or a berry.

714:(B)
Leaves simple. Flowers in spikes or racemes. Aril present. Leaves alternate, serrate. Flowers 4-merous. Fruit a berry. S.E. Asia.

715:(A)
previous:713
Filaments free.
next:716

715:(B)
Filaments more or less connate into a tube. Anthers basifix.

716:(A)
previous:715
Leaves simple or rarely absent.
next:717

716:(B)
Leaves compound, translucently-glandular-dotted.

717:(A)
previous:716
Bracts of sterile flowers (if any) not strongly modified. Shrubs. Leaves simple, undivided.
next:718

717:(B)
Bracts of sterile flowers pitcher-like, saccate, or spurred, brightly coloured. Anthers basifix, introrse. Ovary 2-many-locular. Tropical America.

718:(A)
previous:717
Stamens 6 - 10. Endosperm scanty or absent.
next:719

718:(B)
Stamens 10. Endosperm copious. Anthers dorso-versatile. Ovary 5-locular. W. , C. China. (Clematoclethra)

719:(A)
previous:718
Anthers basifix. Ovary sessile. (incl. Asteropeiaceae)
Asteropeiaceae
719:(B)
Anthers dorsifix. Ovary short- to long-stipitate. (incl. Koeberliniaceae: Koeberlinia)
Koeberliniaceae