1519:(A)
previous:1371
Style 1, undivided, stigma 1 or 2-more, adjacent at base, or stigma 1, sessile.
next:1520
1519:(B)
Styles 2-more, free, or connate, but stigmas free, or stigmas 2- more, sessile.
next:1554
1520:(A)
previous:1519
Stigma 1, undivided or lobed.
next:1521
1520:(B)
Stigmas 2-more, or 1, then deeply divided.
next:1544
1521:(A)
previous:1520
Ovary 1-locular.
next:1522
1521:(B)
Ovary 2 - more locular.
next:1531
1522:(A)
previous:1521
Plants non-parasitic, autotrophous, green.
next:1523
1522:(B)
Parasite, consisting of a rhizome and a single flower of which the bracts resemble a calyx.
1523:(A)
previous:1522
Ovule 1.
next:1524
1523:(B)
Ovules 2- more.
next:1525
1524:(A)
previous:1523
Flowers bisexual, in cymes. Petals valvate or more or less contort, linear-lanceolate. Stigma lobed.
1524:(B)
Flowers polygamous-dioecious. Petals imbricate, ovate to oblong. Style bifid.
1525:(A)
previous:1523
Ovules 2 or 3.
next:1526
1525:(B)
Ovules many. Calyx imbricate or apert.
next:1529
1526:(A)
previous:1525
Stipules absent.
next:1527
1526:(B)
Stipules present. (Rhizophoreae)
1527:(A)
previous:1526
Ovules basal, or parietal, or central.
next:1528
1527:(B)
Ovules apical.
1528:(A)
previous:1527
Leaves translucent-glandular-punctate. Ovules basal, or parietal, or central.
1528:(B)
Leaves not translucent-glandular-punctate. Ovules basal.
1529:(A)
previous:1525
Plants usually herbaceous, rarely shrublets or trees. Leaves entire, or dentate, or lobed, or pinnatifid.
next:1530
1529:(B)
Woody plants. Leaves alternate. Leaves undivided. Inflorescence cymose. Stamens 12-16, connate at base. Ovary inferior, locular at base. Ovules partly ascending, partly descending. Stigma indistinct.
1530:(A)
previous:1529
Flowers umbellate, outer flowers sterile with enlarged sepals. Stamens many. Perennial herbs or undershrubs. Leaves with a bifidly lobed apex. Ovary hemi-inferior, incompletely 5-locular. Ovules patent. Stigma lobed. China, Japan. (Deinanthe, Hydrangeaceae)
Hydrangeaceae
1530:(B)
Inflorescence without an outer whorl of sterile flowers. Stamens up to 20, usually in epipetalous groups alternating with usually scalelike staminodes. Herbs, usually hispid and stinging, rarely woody (Mentzelia) Stipules rarely present. Placentas 3-5, parietal. Ovules many. Mainly American, rarely S.W. Africa or Arabia (Kissenia)
1531:(A)
previous:1521
Corolla valvate.
next:1532
1531:(B)
Corolla imbricate or apert.
next:1535
1532:(A)
previous:1531
Stipules absent. Calyx apert.
next:1533
1532:(B)
Stipules present. Calyx valvate. Shrubs or trees. Endosperm present. (Rhizophoreae)
1533:(A)
previous:1532
Leaves alternate.
next:1534
1533:(B)
Leaves opposite. Ovules many. China, S.E. N. America. (Hydrangeaceae: Decumaria)
Hydrangeaceae
1534:(A)
previous:1533
Ovule 1 per locule.
1534:(B)
Ovules 2-6(-many) per locule.
1535:(A)
previous:1531
Stipules present. Flowers solitary.
next:1536
1535:(B)
Stipules absent.
next:1539
1536:(A)
previous:1535
Herbs.
next:1537
1536:(B)
Trees. Stellately hairy. Sepals and petals 4 or 5. Stamens many. C. America (Dicraspidia) or Peru (Neotessmannia)
1537:(A)
previous:1536
Herbs. Flowers solitary.
next:1538
1537:(B)
Trees. Flowers in a thyrse. Sepals and petals 4. Stamens 16-25. Ovary 2-locular. E. Brazil.
1538:(A)
previous:1537
Sepals 4. Petals, stamens, and locules of the ovary many.
1538:(B)
Sepals, petals, and locules of the ovary 6. Stamens 12. (Ludwigia)
1539:(A)
previous:1535
Leaves not translucent-glandular-punctate.
next:1540
1539:(B)
Leaves translucent-glandular-punctate. Shrubs or trees. Leaves usually with a marginal nerve. Calyx imbricate, or apert, or closed and calyptrate. Endosperm absent.
1540:(A)
previous:1539
Anthers with longitudinal slits, connective inappendiculate. Woody plants. Stamens numerous.
next:1541
1540:(B)
Anthers usually with terminal pores, connective usually appendiculate at base. Leaves opposite or in whorls, usually 3-more plinerved. Petals usually imbricate or contort, rarely valvate. Endosperm absent.
1541:(A)
previous:1540
Bracteoles present. Petals imbricate. Fruit a berry or a capsule with a lid. Endosperm absent.
next:1542
1541:(B)
Bracteoles absent. Petals contort. Fruit a longitudinally dehiscent capsule. Endosperm present. Leaves opposite. Filaments free. Anthers latrorse. (Philadelphaceae: Philadelphus)
Philadelphaceae
1542:(A)
previous:1541
Leaves usually opposite. Flowers solitary or in fascicles. Stamens free. Anthers introrse, dorsifix. Placentas initially basal, later at least parietal and superimposed.
1542:(B)
Leaves alternate. Flowers in racemes. Stamens more or less distinctly connate at base. Anthers latrorse, basifix. Ovules axillary, or apical, or basal.
next:1543
1543:(A)
previous:1542
Flowers usually zygomorphic. Sepals valvate. Petals 4, or 6, or 8. Filaments connate at base into an often very unilaterally developed androphore. Fruit with a lid, either berry-like, or dry. Tropical America.
1543:(B)
Flowers actinomorphic. Sepals ca imbricate, or calyx tearing irregularly at anthesis. Petals 4. Filaments connate at base to nearly free, not on a unilateral androphore. Fruit a berry without a lid, or 4 winged, dry and indehiscent (Combretodendron) Old World tropics. (Barringtoniaceae)
Barringtoniaceae
1544:(A)
previous:1520
Ovary 1-locular.
next:1545
1544:(B)
Ovary 2-20-locular.
next:1546
1545:(A)
previous:1544
Sepals 2. Petals 4-6. Ovules basal or central. Fruit a capsule. Herbs. Leaves well developed. Stipules present. (Portulaca)
1545:(B)
Sepals and petals 4-more, usually many. Ovules parietal. Fruit a berry. Succulents, often spiny. Leaves usually scale-like or absent.
1546:(A)
previous:1544
Ovules 2-more per locule.
next:1547
1546:(B)
Ovule 1 per locule. Fruit a berry or a drupe.
next:1553
1547:(A)
previous:1546
Ovules many per locule.
next:1548
1547:(B)
Ovules 2-4 per locule. Trees. Stipules present. Anthers with pores. Fruit dry. Endosperm absent.
1548:(A)
previous:1547
Petals many.
next:1549
1548:(B)
Petals usually 6 or less.
next:1550
1549:(A)
previous:1548
Terrestrial herbs or undershrubs. Fruit a capsule. Embryo curved. (Mesembryanthemum)
1549:(B)
Aquatic herbs. Fruit a berry. Embryo straight. Ovules on the septs.
1550:(A)
previous:1548
Leaves alternate.
next:1551
1550:(B)
Leaves opposite. Shrubs. Stipules absent. Corolla imbricate or contort. Stamens 3-6. Anthers with longitudinal slits. Stigmas 3-7. Fruit a capsule. Endosperm present. (Philadelphaceae)
Philadelphaceae
1551:(A)
previous:1550
Herbs or undershrubs.
next:1552
1551:(B)
Trees. Stipules absent. Corolla valvate. Anthers with pores. Fruit a drupe. Endosperm present.
1552:(A)
previous:1551
Stipules absent. Fruit follicular. Petals 3, minute. Stamens 12. W China. (Saruma)
1552:(B)
Stipules present. Fruit capsular. Petals 3-6, imbricate. Stamen with longitudinal slits. Stigmas 6. Endosperm absent.
1553:(A)
previous:1546
Leaves opposite, simple. Stipules absent. Perianth simple, segment 7 - 10, imbricate, in a spiral. Stamens 11, in a spiral. Anthers with 2 introrse valves. Stigma 2- or 3-partite. Ovary 2- or 3-locular. Chile.
1553:(B)
Leaves alternate, incised to compound. Stipules present, sometimes intra-petiolar or adnate to the petiole and inconspicuous. Perianth differentiated into a calyx and corolla. Petals valvate, in a whorl. Stamens in a whorl. Anthers with longitudinal slits. Stigmas 5-more. Ovary 5-more-locular.