967:(A)
previous:928
Ovule 1 per locule.
next:968

967:(B)
Ovules 2 or more per locule.
next:1008

968:(A)
previous:967
Ovule erect or ascending.
next:969

968:(B)
Ovule pendulous, descending or patent.
next:977

969:(A)
previous:968
Herbs or undershrubs. Flowers actinomorphic or nearly so. Sepals 4, free. Petals 4. Stamens 6, free.

969:(B)
Shrubs or trees, rarely herbs or undershrubs then flowers distinctly zygomorphic. Stamens more or less than 6, rarely 6 then either filaments connate, or petals 3, or sepals united.
next:970

970:(A)
previous:969
Stamens inserted outside the disk or on its margin, 4 or 5.
next:971

970:(B)
Disk extrastaminal.
next:976

971:(A)
previous:970
Leaves glandular-dotted.

971:(B)
Leaves not glandular-dotted.
next:972

972:(A)
previous:971
Filaments free.
next:973

972:(B)
Filaments connate, at least at base.
next:975

973:(A)
previous:972
Leaves simple. Flowers actinomorphic.

973:(B)
Leaves pinnately compound.
next:974

974:(A)
previous:973
Leaves usually alternate. Flowers bisexual.

974:(B)
Leaves opposite. Flowers unisexual.-Stamens 4 S. Africa. (Ptaeroxylaceae: Ptaeroxylon)
Ptaeroxylaceae
975:(A)
previous:972
Flowers bisexual. Ovules 1 or more, usually descending.

975:(B)
Flowers unisexual. Ovule 1 per locule, ascending. Trees or shrubs with a cactus-like habit, often with spines. Madagascar.

976:(A)
previous:970
Flowers unisexual or polygamous. Endosperm absent. Embryo more or less curved.

976:(B)
Flowers bisexual. Endosperm copious. Embryo straight. Leaves compound. Stipules present. Flowers zygomorphic, 5-merous.

977:(A)
previous:968
Flowers unisexual.
next:978

977:(B)
Flowers bisexual, at least apparently so, or polygamous.
next:985

978:(A)
previous:977
Disk extra-staminal. Ovule apotropous.
next:979

978:(B)
Disk intra-staminal.
next:980

979:(A)
previous:978
Leaves pinnately compound. Flowers unisexual (staminodes sometimes very well-developed, but not functional) Petals usually imbricate. Filaments free or connate at base only. Ovary usually 3-locular. Ovule ascending. Endosperm absent.

979:(B)
Leaves simple. Flowers bisexual. Petals valvate. Filaments connate into a tube. Ovary incompletely 2-locular. Ovule pendulous. Endosperm copious. Tropical S. America, W. Africa. (Aptandraceae: Aptandra)

980:(A)
previous:978
Flowers solitary. Leaves pinnately compound with axillary thorns. Stamens with 2-lobed scales at base, which enclose the pistil. Fruit a schizocarp with a persistent columella. S.W. Africa. (Neoluederitzia)

980:(B)
Flowers in distinct inflorescences.
next:981

981:(A)
previous:980
Ovule atropous. Trees or shrubs. Leaves simple. Flowers in racemes or in panicles. Stamens 10. Styles 3 or 4. Endosperm present. (Panda, also in Euphorbiaceae)

981:(B)
Ovule anatropous.
next:982

982:(A)
previous:981
Ovule apotropous. Resinous (often poisonous!) plants. Leaves simple or compound. Flowers in panicles. Endosperm absent.

982:(B)
Ovule epitropous.
next:983

983:(A)
previous:982
Styles usually long and distinct. Fruit usually a 3-valved capsule. Endosperm copious.

983:(B)
Styles either short or stigma subsessile. Fruit a drupe or a schizocarp with indehiscent mericarps. Endosperm absent.
next:984

984:(A)
previous:983
Flowers in cymes or in heads, these composed in panicles. Ovary 4-locular. S. Africa. (Kirkiaceae)
Kirkiaceae
984:(B)
Flowers in thyrses or in panicles. Ovary 2- rarely 3-locular. Asia, New Caledonia. (Soulamea)

985:(A)
previous:977
Filaments more or less connate.
next:986

985:(B)
Filaments free.
next:992

986:(A)
previous:985
Anthers with an apical pore. Leaves undivided. Flowers distinctly zygomorphic.

986:(B)
Anthers with 2 longitudinal slits.
next:987

987:(A)
previous:986
Leaves glandular-dotted. Leaves simple, alternate. Endosperm absent.

987:(B)
Leaves not glandular-dotted.
next:988

988:(A)
previous:987
Herbs, sometimes woody at base, or undershrubs. Stipules present. Fruit a 5-locular schizocarp, not winged, usually awned. Temperate parts. Leaves pinnately partite to -compound, or digitately nerved.
next:656

988:(B)
Woody plants, rarely somewhat herbaceous, then leaves opposite or in whorls, simple, and stipules absent. Fruit a capsule, or a berry, or a drupe, rarely a schizocarp, then 2- or 3-locular and often winged. (Sub-)tropics.
next:989

989:(A)
previous:988
Filaments connate into a tube, usually for most of their length.
next:990

989:(B)
Filaments connate at base, only. Leaves simple.
next:991

990:(A)
previous:989
Leaves usually pinnately compound, rarely simple. Anthers introrse. Ovules epitropous. (Melioideae)

990:(B)
Leaves simple. Anthers extrorse. Ovules apotropous. (Aptandraceae: Aptandra)

991:(A)
previous:989
Leaves usually opposite or in whorls. Fruit a capsule, or a schizocarp. Plants usually pubescent somewhere.
next:658

991:(B)
Leaves alternate. Fruit a drupe. Plants entirely glaborous. Trees or undershrubs. Stipules absent or small. Sepals imbricate, eglandular. Petals imbricate or contort. Ovary 5-locular. Endosperm copious. Tropical America, W. Africa. (Hylocarpa, Sacoglottis)

992:(A)
previous:985
Petals alternisepalous. Stamens episepalous, or more than the petals.
next:993

992:(B)
Petals and stamens episepalous. Fertile stamens 2, or 3, or 5. Styles 1 or 2. India to the Solomons.

993:(A)
previous:992
Styles 2 or more, free or connate at base or at the apex. Stamens 4 or more. Anthers with longitudinal slits.
next:994

993:(B)
Style 1, simple. Stigmas 1 -more.
next:997

994:(A)
previous:993
Stamens 5 or 8 or 10. Fruit a drupe. Embryo straight. Resinous (often poisonous) trees or shrubs. Ovary not or slightly lobed.

994:(B)
Stamens 4 or 6 or 8 or 10. Fruit either dry or embryo curved.
next:995

995:(A)
previous:994
Styles free at base, connate at the apex. (Harrisonia)

995:(B)
Styles or stigmas entirely free.
next:996

996:(A)
previous:995
Ovary 2-, rarely 3-locular. Stigmas sessile. Seychelles to W. Pacific. (Soulamea)

996:(B)
Ovary 4-locular. Styles distinct. S. Africa. (Kirkiaceae)
Kirkiaceae
997:(A)
previous:993
Leaves simple, sometimes incised. Leaves alternate.
next:998

997:(B)
Leaves compound, but sometimes unifoliolate.
next:1004

998:(A)
previous:997
Calyx valvate. Trees. Leaves not glandular-punctate. Flowers in spikes, these arranged in panicles. Petals valvate. Ovary 4-locular. Endosperm absent. (Poga)

998:(B)
Calyx imbricate or apert 1.
next:999

999:(A)
previous:998
Stem herbaceous or woody at base only. Sepals 4, free. Petals 4, imbricate. Stamens 6, rarely less. Ovary 2-locular. Endosperm scanty or absent. Embryo large, curved.

999:(B)
Stem woody. Leaves simple.
next:1000

1000:(A)
previous:999
Leaves glandular-punctate. Corolla valvate or flowers fascicled. Embryo large, straight.

1000:(B)
Leaves not glandular-punctate.
next:1001

1001:(A)
previous:1000
Corolla valvate. Endosperm copious.
next:1002

1001:(B)
Corolla imbricate. Stamens 8 - 10.
next:1003

1002:(A)
previous:1001
Inflorescence paniculate. Ovary completely divided into locules. Embryo large, curved. Disk small, annular. Stamens 4 or 5.

1002:(B)
Inflorescence usually fasciculate. Ovary not completely divided into locules, 1-locular near the apex. Embryo small, straight, on top of the endosperm.

1003:(A)
previous:1001
Flowers in a panicle. Disk large, cushion-shaped. Fruit a drupe. Endosperm absent or nearly so. Embryo large, straight, or nearly so. (also in Linaceae or Simaroubaceae)

1003:(B)
Flowers in a raceme. Disk little developed. Fruit dry, indehiscent. Endosperm copious. Embryo small, in the centre of the endosperm. America.

1004:(A)
previous:997
Leaves not translucent-glandular-punctate.
next:1005

1004:(B)
Leaves translucent-glandular-punctate 1.

1005:(A)
previous:1004
Stipules absent, or leaves with 2 sub-basal spines.
next:1006

1005:(B)
Stipules present, rarely absent, then with 1 axillary spine (Balanitaceae) Flowers bisexual. Stamens 10, often appendiculate at base. Disk intra-staminal. Stigma usually lobed. Ovary 5-, or 10-, 12 locular. Fruit usually a schizocarp. Embryo straight.
Balanitaceae
1006:(A)
previous:1005
Disk intra-staminal. Stamens 8 - 10.
next:1007

1006:(B)
Disk extra-staminal. Stamens 5-8. Flowers polygamous. Ovary 2-or 3-locular. Embryo curved.

1007:(A)
previous:1006
Flowers bisexual. Stamens with 2-lobed appendages at base. Stigma 4- or 5-lobed. Embryo curved. Tropical Africa to Australia. (Harrisonia)

1007:(B)
Flowers polygamous. Stamens unappendaged. Stigmas 4 or 5, filiform. Embryo straight. Mexico. (Cyrtocarpa)