845:(A)
previous:806
Ovule 1 per locule.
next:846
845:(B)
Ovules 2-more per locule.
next:861
846:(A)
previous:845
Flowers unisexual. Ovary 2-4-locular. Ovule pendulous. Endosperm present.
next:847
846:(B)
Flowers bisexual or polygamous, rarely unisexual, then either ovary 5 - 10-locular, or ovule ascending.
next:848
847:(A)
previous:846
Trees or shrubs. Male flowers with petals. Female flowers with staminodes. Sepals 4, valvate. Petals 4. Stamens 15-more. Ovary 4-locular. Ovule without a caruncle. Peru, Brazil. (Hydrogaster, Vasivaea)
847:(B)
Plant otherwise. Ovule usually with a caruncle.
848:(A)
previous:846
Calyx valvate. Leaves alternate.
next:849
848:(B)
Calyx imbricate or apert, rarely closed or dome-shaped.
next:853
849:(A)
previous:848
Stipules present, sometimes early fugacious.
next:850
849:(B)
Stipules absent. Carpels many, more or less connate.
850:(A)
previous:849
Filaments connate into several bundles or free.
next:868
850:(B)
Filaments connate into 1 bundle.
next:851
851:(A)
previous:850
Anthers with 2 slits.
next:852
851:(B)
Anthers with 1 slit.
852:(A)
previous:851
Calyx 3-lobed with an epicalyx. Ovary 2- or 3-locular. Style-branches 2 or 3.
852:(B)
Calyx 5-partite, epicalyx absent. Ovary 5 - 10-locular. Styles 5 - 10.
853:(A)
previous:848
Trees or shrubs.
next:854
853:(B)
Herbs or undershrubs. Leaves alternate, divided. Stipules absent. Filaments free.
854:(A)
previous:853
Leaves compound.
next:855
854:(B)
Leaves simple, undivided.
next:856
855:(A)
previous:854
Leaves digitately compound. Styles 4- more, free. Endosperm absent. ovules ascending. Tropical America. (Caryocar)
855:(B)
Leaves pinnately compound. Leaves alternate. Stipules absent. Filaments connate into a tube.
856:(A)
previous:854
Leaves alternate.
next:857
856:(B)
Leaves opposite. Endosperm absent.
next:860
857:(A)
previous:856
Stipules absent.
next:858
857:(B)
Stipules present.
next:859
858:(A)
previous:857
Corolla valvate. Filaments free or nearly so. Ovules pendulous.
858:(B)
Corolla imbricate. (Ternstroemiaceae)
859:(A)
previous:857
Anthers adnate. Ovules ascending. Endosperm absent.
859:(B)
Anthers versatile. Ovules pendulous. Endosperm usually present. (Nitraria)
860:(A)
previous:856
Stipules absent. Ovules ascending.
860:(B)
Stipules present. Ovules pendulous. Styles 3.
861:(A)
previous:845
Calyx valvate. Stipules present.
next:862
861:(B)
Calyx imbricate or apert, rarely closed.
next:872
862:(A)
previous:861
Ovary sessile or nearly so, when stipitate petals 5. Ovules usually axillary.
next:863
862:(B)
Ovary usually long-stipitate. Petals 4. Ovules inserted on the sept. Stigma, usually sessile. Endosperm absent or nearly so. Embryo curved.
863:(A)
previous:862
Filaments free, or connate into several bundles.
next:864
863:(B)
Filaments all connate into 1 bundle.
next:869
864:(A)
previous:863
Flowers not lepidote outside, epicalyx absent. Anthers 2-locular, locules sometimes confluent at the apex.
next:865
864:(B)
Flowers lepidote outside. Epicalyx 2-5-lobed. Anthers 1-morelocular, apically dehiscent.
865:(A)
previous:864
Petals calycoid or incised, usually sessile with a broad base, pubescent outside, valvate or induplicative-valvate, rarely imbricate, never contort. Filaments free.
next:866
865:(B)
Petals corolloid, margin entire, rarely incised, then filaments connate into several bundles; base attenuate, glabrous, imbricate, usually contort, rarely valvate, then filaments connate into several bundles.
next:867
866:(A)
previous:865
Anthers narrow, apically dehiscent. Trees or shrubs. Ovules descending, or 1 descending and 1 ascending.
866:(B)
Anthers broad, longitudinally dehiscent.
867:(A)
previous:865
Ovary 3-locular. Ovules 2 per locule, descending. Resinous trees. Flowers in panicles.
867:(B)
Ovary 2-, or 4-more-locular, rarely 3-locular then ovules either many or ascending, rarely with 2 descending ovules, then herbs or undershrubs.
next:868
868:(A)
previous:850
previous:867
Staminodes present. (incl. Nesogordonia, also placed in Tiliaceae)
868:(B)
Staminodes absent.
869:(A)
previous:863
Corolla contort. Petals 5.
next:870
869:(B)
Corolla valvate. Anthers with 4 pores.
870:(A)
previous:869
Anthers 1-locular, with 1 slit, rarely 2-more-locular, then epicalyx present and flowers with stiff scales.
next:871
870:(B)
Anthers 2-locular, with 2 slits or pores. Epicalyx absent, rarely present (Dombeya), then leaves simple and pollen spiny.
871:(A)
previous:870
Pollen spiny. Leaves simple. Anthers 1-locular.
871:(B)
Pollen smooth, rarely reticulate or pusticulate. Trees.
872:(A)
previous:861
Stipules present, sometimes early fugacious.
next:873
872:(B)
Stipules absent or very minute.
next:889
873:(A)
previous:872
Leaves opposite.
next:874
873:(B)
Leaves alternate or all radical.
next:876
874:(A)
previous:873
Style undivided.
next:875
874:(B)
Styles 2-more, free. Shrubs or trees.
next:888
875:(A)
previous:874
Filaments connate at base. Endosperm absent. Africa to India. (Monsonia, Sarcocaulon)
875:(B)
Filaments free. Endosperm present.
876:(A)
previous:873
Styles 3-more, free.
next:877
876:(B)
Style 1, stigmas 1-several.
next:878
877:(A)
previous:876
Ovary lobed. Ovules many per locule.
877:(B)
Ovary undivided. Ovules 2 per locule. S. America. (Roucheria)
878:(A)
previous:876
Ovary sessile or nearly so, rarely stipitate, then anthers adnate and embryo straight. Ovules axillary.
next:879
878:(B)
Ovary usually long-stipitate. Anthers dorso-versatile. Ovules usually inserted on the sept. Embryo curved. Stigma 1, usually sessile.
879:(A)
previous:878
Ovules 2 per locule, ascending, or more, then sometimes descending.
next:880
879:(B)
Ovules 2 per locule, descending or patent.
next:887
880:(A)
previous:879
Calyx apert, or closed, or valvate, rarely slightly imbricate.
next:881
880:(B)
Calyx distinctly imbricate.
next:883
881:(A)
previous:880
Filaments connate. Anthers usually with 1 slit.
next:882
881:(B)
Filaments free. Anthers with 2 longitudinal slits. Herbs. Leaves irregularly multifid. Sepals nearly free to base. (Peganum)
882:(A)
previous:881
Leaves usually digitately compound or lobed. Pollen smooth, rarely reticulate or pusticulate. Trees.
882:(B)
Leaves simple, pinnately or digitately nerved. Pollen spiny. Calyx with a nearly entire margin.
883:(A)
previous:880
Anthers with apical pores.
next:884
883:(B)
Anthers with longitudinal slits. Leaves undivided.
next:885
884:(A)
previous:883
Leaves undivided or pinnately compound. Filaments short. Embryo straight.
884:(B)
Leaves lobed or digitately compound. Filaments long. Embryo curved.
885:(A)
previous:883
Filaments connate at base. Ovary completely locular.
next:886
885:(B)
Filaments free. Ovary incompletely locular. Leaves without translucent-glandular lines or dots. Ovules ascending. Fruit septicide. Embryo curved.
886:(A)
previous:885
Ovules descending, many. Embryo large, straight. Fruit septicide. (incl. Mahurea, also in Bonnetiaceae or Theaceae)
Bonnetiaceae
886:(B)
Ovules erect, basal, 3 or 7-9 per locule. Embryo minute. Fruit indehiscent, globose or kidney-shaped, densely muricate. Madagascar. (Sphaerosepalaceae)
Sphaerosepalaceae
887:(A)
previous:879
Trees or shrubs. Flowers in spikes, or in racemes, or in panicles. Ovary usually 3-locular, rarely 4- or 5-locular (Pakaraimaea) Anthers basifix-adnate and plants from S.E. Asia (Dipterocarpoideae), or more or less basiversatile and plants from Africa (Marquesia, Monotes), or S. America (Pakaraimaea)
887:(B)
Herbs. Flowers solitary or in umbels. Ovary 5-locular. Anthers versatile. (Monsonia, Sarcocaulon)
888:(A)
previous:874
Flowers large, solitary. Stamens very many. Ovules several per locule. Endosperm present. S. temperate.
888:(B)
Flowers small, in racemes or in panicles. Stamens 15-30. Ovules 2 per locule. Endosperm absent. Tropical S. America.
889:(A)
previous:872
Leaves not tubular.
next:890
889:(B)
Leaves tubular. Insectivorous herbs. Leaves radical. Flowers 5-merous. Endosperm copious. America.
890:(A)
previous:889
Sepals 4-more, rarely 2 or 3, then either plant woody, or petals 3 or 5
next:891
890:(B)
Sepals 2 or 3. Petals 4 or 6. Herbs. Flowers solitary. Endosperm copious.
891:(A)
previous:890
Leaves compound, rarely lobed, then sepals 5, free and petals 5 or 8 modified into nectaries with lids.
next:892
891:(B)
Leaves simple.
next:896
892:(A)
previous:891
Leaves digitately compound.
next:893
892:(B)
Leaves pinnately compound or lobed.
next:894
893:(A)
previous:892
Ovary distinctly stipitate, 2-6-locular.
893:(B)
Ovary sessile, 8-20-locular. Leaves translucent-glandular-punctate.
894:(A)
previous:892
Herbs. Flowers solitary or in cymes. Sepals free. Ovules many per locule.
next:895
894:(B)
Woody plants. Flowers in spikes, or in racemes, or in panicles. Sepals connate. Ovules 2 per locule. Leaves cauline.
895:(A)
previous:894
Leaves radical. Flowers in cymes. Petals 5, contort, not modified into nectaries. Embryo coiled. Andes. (Hypseocharitaceae)
Hypseocharitaceae
895:(B)
Leaves cauline. Flowers solitary. Petals 4 or 8, imbricate, modified into nectaries with lids. Embryo straight. Eurasia. (Helleboraceae - Nigelleae- )
896:(A)
previous:891
Plant terrestrial.
next:897
896:(B)
Plant aquatic. Leaves floating, peltate. Petals many. Nectaries absent. Styles and locules of the ovary many.
897:(A)
previous:896
Sepals or calyx-segments developing normally.
next:898
897:(B)
Calyx cup- or saucer-shaped, margin rupturing into more or less irregular lobes. New Caledonia. (Zygogynum)
898:(A)
previous:897
Sepals and petals either less than 6 or more than 7, rarely 6 or 7, then stigmas several.
next:899
898:(B)
Sepals and petals 6 or 7. Stigma 1. Shrubs. Anthers with apical pores. Embryo minute.
899:(A)
previous:898
Petals imbricate, or contort, or valvate.
next:900
899:(B)
Petals closed in bud, dropping as a cap. Trees. Calyx apert. Tropical Africa.
900:(A)
previous:899
Ovary sessile or nearly so.
next:901
900:(B)
Ovary usually long stipitate. Stigma 1, usually sessile. Ovules usually on the sept. Endosperm absent or nearly so.
901:(A)
previous:900
Anthers with apical pores or slits.
next:902
901:(B)
Anthers with longitudinal slits.
next:905
902:(A)
previous:901
Leaves and twigs without elastic threads (break!) Leaves alternate. Sepals and petals imbricate. Ovules axillary, or, when 2, apical, pendulous.
next:903
902:(B)
Leaves and twigs with elastic threads. Leaves opposite. Sepals apert. Petals valvate. Ovules 2, basal, erect. Burma to Indo-China.
903:(A)
previous:902
Styles 3-more. Ovules numerous per locule, axillary.
next:904
903:(B)
Style 1, shortly 3-fid. Ovules 2 per locule, collateral, apical. (Sladeniaceae)
Sladeniaceae
904:(A)
previous:903
Stamens inflexed in bud. Ovary-locules numerous. Placentas not protruding into the locules.
904:(B)
Stamens not inflexed in bud. Ovary 3-5-locular. Placentas protruding into the locules. (Saurauiaceae)
905:(A)
previous:901
Bracts of sterile flowers, if any, not strongly transformed.
next:906
905:(B)
Bracts of sterile flowers pitcher-, spoon-shaped, or saccate, brightly coloured. Trees or climbers. Flowers in spikes, or in racemes, or in umbels. Corolla not contort. Filaments connate at base. Ovules many per locule. Tropical America.
906:(A)
previous:905
Leaves opposite, rarely alternate then petals contort, filaments free or nearly so and ovules descending.
next:907
906:(B)
Leaves alternate, stem woody, leaves rarely opposite, then stem herbaceous, petals numerous and embryo curved.
next:909
907:(A)
previous:906
Sepals imbricate. Endosperm absent. Embryo straight.
next:908
907:(B)
Sepals contort, at least the inner 3 when much larger than the outer 2. Endosperm copious. Embryo bent, coiled, or folded.
908:(A)
previous:907
Leaves with translucent-glandular stripes or dots. Ovary 2-15-locular. Ovules 1-many, when 2 not 1 ascending, 1 descending.
908:(B)
Leaves without such dots or stripes. Ovary 17-25-locular, locules with 1 ascending, 1 descending ovule. Fruit umbrella-shaped. Seeds winged. Seychelles Isl.
909:(A)
previous:906
Petals imbricate, rarely contort, then ovules ascending.
next:910
909:(B)
Petals contort. Flowers in panicles. Filaments more or less completely connate. Ovules 2 per locule, descending.
910:(A)
previous:909
Aril absent. Endosperm scanty or absent.
next:911
910:(B)
Aril present. Endosperm copious. Sepals free or nearly so. Petals 5. Styles 3-more, free or connate at base only. Embryo more or less straight.
911:(A)
previous:910
Flowers usually solitary.
911:(B)
Flowers in panicles. Madagascar. (Asteropeiaceae, also in Bonnetiaceae)
Asteropeiaceae Bonnetiaceae