1812:(A)
previous:1682
Styles free at base, connate at the more or less thickened apex. Leaves usually opposite. Styles 2(-5)
next:1813
1812:(B)
Styles entirely free, or connate at base only.
next:1816
1813:(A)
previous:1812
Flowers 5-merous. Style with a thickened apex stigmatic on its sides or base.
next:1814
1813:(B)
Flowers 4-merous. Style apically stigmatic. Herbs. Leaves at base with an interpetiolary ridge or sheath. Ovary 2-locular. (Spigeliaceae: Mitrasacme)
Spigeliaceae
1814:(A)
previous:1813
Stamens free. Pollen free.
next:1815
1814:(B)
Stamens connate and adnate to the style apex into a capitate body. Pollen coherent into pollinia. Leaves above with or without a tuft of short, cylindric, hair-like appendages ('colleters') at the base of the midrib. Corolla often more or less urceolate, the tube usually shorter than the lobes.
1815:(A)
previous:1814
Anthers coherent and appressed against the apex of the style, alternating with spathulate appendages of the latter on which the pollen is discharged and which conceal the stigmatic areas of it. (Periplocaceae)
Periplocaceae
1815:(B)
Anthers free from the style or not, the latter without such appendages. Leaves above without colleters. Corolla rotate, or campanulate, or funnel-, or salver-shaped, the tube usually longer than the lobes.
1816:(A)
previous:1812
Styles or style-branches 2, simple.
next:1817
1816:(B)
Styles or style branches 3-more.
next:1829
1817:(A)
previous:1816
Ovary either strictly 1-locular or (in-)completely 2- or 3-locular.
next:1818
1817:(B)
Ovary (in-)completely 4-locular, or ovaries 4, free. Ovules 4 per flower :.
next:1828
1818:(A)
previous:1817
Stipules present, sometimes early fugacious.
next:1819
1818:(B)
Stipules absent.
next:1821
1819:(A)
previous:1818
Leaves opposite.
next:1820
1819:(B)
Leaves alternate. Woody plants. Flowers 5-merous. Ovary 2-locular. Ovules 2 per locule, pendulous, anatropous. Fruit a drupe. Endosperm absent.
1820:(A)
previous:1819
Woody plants. Style 1, bipartite. Ovule 1 per locule. Fruit a drupe.
1820:(B)
Herbs. Styles 2, free. Ovules many per locule. Fruit a capsule. (Spigeliaceae: Mitrasacme)
Spigeliaceae
1821:(A)
previous:1818
Micropyle and radicle pointing up or to the centre. Embryo straight.
next:1822
1821:(B)
Micropyle and radicle pointing down. Embryo curved or plicate. Leaves alternate. Ovary either 1-locular and ovules 2-4, or 2-locular, ovules 1 or 2 per locule.
1822:(A)
previous:1821
Ovary 1-locular. Herbs, rarely undershrubs or shrubs, then flowers in compound cincinni.
next:1823
1822:(B)
Ovary 2- or 3-locular.
next:1826
1823:(A)
previous:1822
Ovules 2. Leaves alternate. Flowers (4- or) 5-merous.
next:1824
1823:(B)
Ovules many.
next:1825
1824:(A)
previous:1823
Erect plants, rarely twining. Bark without white juice.
1824:(B)
Herbaceous climbers with abundant white juice. Stipules absent. Inflorescence cymose, cincinnoid. Calyx and corolla imbricate. Ovules apical, pendulous. Fruit dry, indehiscent, winged. S.E. Asia to Australia.
1825:(A)
previous:1823
Leaves radical or alternate, rarely opposite. Corolla imbricate. Fruit loculicide, rarely septicide and loculicide, or dehiscing irregularity. Herbs, rarely shrubs or undershrubs, then, as usual, flowers in compound cincinni.
1825:(B)
Leaves opposite. Corolla contort, rarely imbricate. Fruit septicide. Herbs. Style apically slightly bifid.
1826:(A)
previous:1822
Ovules 2-more per locule.
next:1827
1826:(B)
Ovule 1 per locule. Shrublets or woody herbs. Flowers solitary or in dense lateral cincinni. Flowers 4-merous. Ovary 2-locular. Ovule pendulous, anatropous. Africa. (Wellstediaceae)
Wellstediaceae
1827:(A)
previous:1826
Plants usually herbaceous. Flowers in cincinni. Ovary 2- or 3-locular. Ovules 2-more per locule.
1827:(B)
Ericoid shrubs or undershrubs. Flowers in spikes or capitules. Ovary 2-locular. Ovules 2 per locule. Leaves alternate, entire. Flowers 5-merous. Ovary slightly immersed in the receptacle. S. Africa.
1828:(A)
previous:1817
Micropyle and radicle pointing down.
next:1993
1828:(B)
Micropyle and radicle pointing up or to the centre. Leaves undivided, alternate. (incl. Ehretiaceae)
Ehretiaceae
1829:(A)
previous:1816
Ovary 1, rarely 4, then connate at base.
next:1830
1829:(B)
Ovaries 3-30, free. Flowers bisexual. Styles 3-30. Ovules usually many per ovary. Fruit a capsule.
1830:(A)
previous:1829
Ovary 1- or 2-locular. Fruit a capsule.
next:1831
1830:(B)
Ovary 3-16-locular, or ovaries 4, free.
next:1833
1831:(A)
previous:1830
Woody plants. Leaves opposite or sub-verticillate. Flowers bisexual. Ovary 2-locular, if 1-locular ovules 3 or 4. Style 4-fid. Ovules 2-more.
next:1832
1831:(B)
Herbs or undershrubs. Leaves alternate. Flowers unisexual. Ovary 1-locular. Disk present. Ovules 6-more. S. Africa.
1832:(A)
previous:1831
Nodes with an interpetiolary ridge or connate stipules. Glandular hairs absent. Ovary 2-locular. Ovules 2 or many per locule. Seeds without an apical tuft of hairs. (Gelsemieae)
1832:(B)
Stipules absent. Glandular hairs present. Ovary 1-locular. Ovules 3 or 4. Seed with an apical tuft of hairs. Mexico, C. America. (Plocospermataceae)
Plocospermataceae
1833:(A)
previous:1830
Stipules absent. Endosperm present, rarely absent, then style with 4 branches.
next:1834
1833:(B)
Stipules present, sometimes soon fugacious. Endosperm absent. Shrubs or trees. Leaves undivided, alternate. Flowers in cymes. Styles or style-branches 3. Ovary 3-locular. Ovules 2 per locule, pendulous. Fruit a drupe.
1834:(A)
previous:1833
Flowers unisexual or polygamous. Woody plants.
next:1835
1834:(B)
Flowers bisexual, rarely polygamous, then ovules ascending.
next:1836
1835:(A)
previous:1834
Ovules 1 or 2 per locule. Leaves undivided. Disk absent. Ovules pendulous.
1835:(B)
Ovules many per locule. Petals connate at base only. Fruit a berry.
1836:(A)
previous:1834
Styles free, 3 or 5.
next:1837
1836:(B)
Styles connate at least at base, 2-4.
next:1838
1837:(A)
previous:1836
Herbs. Styles 3.
1837:(B)
Shrub or small tree. Styles 5. Fruit a drupe. New Caledonia. (also in Aquifoliaceae or Ebenaceae)
1838:(A)
previous:1836
Style-branches and locules of the ovary or free ovaries 4. Fruit a drupe or drupelets 4. Shrubs or trees. (Ehretiaceae)
Ehretiaceae
1838:(B)
Style-branches and locules of the ovary (2 or) 3. Fruit a capsule or a nut. Plants usually herbaceous.