1419:(A)
previous:1384
Ovule 1 per locule.
next:1420

1419:(B)
Ovules 2-more per locule.
next:1439

1420:(A)
previous:1419
Calyx imbricate or apert.
next:1421

1420:(B)
Calyx valvate. Endosperm absent.
next:1430

1421:(A)
previous:1420
Corolla imbricate or apert, sometimes adnate to the ovary.
next:1422

1421:(B)
Corolla valvate or induplicative-valvate.
next:1432

1422:(A)
previous:1421
Stem woody, rarely herbaceous. Flowers usually bisexual or polygamous, rarely dioecious.
next:1423

1422:(B)
Stem herbaceous, at most woody at base, climbing or prostrate. Flowers unisexual, rarely bisexual, then stamens less than the petals.

1423:(A)
previous:1422
Leaves simple, undivided.
next:1424

1423:(B)
Leaves pinnately compound. Flowers in umbels or in racemes. Stigmas 5 - 8.

1424:(A)
previous:1423
Stigma 1.
next:1425

1424:(B)
Stigmas 2 or 3.
next:1428

1425:(A)
previous:1424
Perianth differentiated into two whorls (calyx and corolla) Stamens in a whorl. Anthers with longitudinal slits.
next:1426

1425:(B)
Perianth simple, segments 7- 10, in a spiral. Stamens 2- 10, in a spiral. Anthers with 2 introrse valves. Flowers in racemes or panicles. Ovary inferior. Chile.

1426:(A)
previous:1425
Leaves not translucent-glandular-dotted. Ovary apparently hemi-1inferior, immersed in a disk. Flowers solitary or in cymes.
next:1427

1426:(B)
Leaves translucent-glandular-dotted. Ovary inferior. Flowers solitary or in fascicles.

1427:(A)
previous:1426
Ovary irregularity 20-locular, apex with a hollow tubule, inside with 5 stigmatic lines and a central free column, which simulates a style. Leaves alternate. S.E. Asia to N.E. Australia. (Siphonodontaceae)
Siphonodontaceae
1427:(B)
Ovary and style different.

1428:(A)
previous:1424
Flowers in racemes or in panicles. Stigmas 3.
next:1429

1428:(B)
Flowers in a capitate inflorescence. Stigmas 2. Ericoid shrublets. S. Africa.

1429:(A)
previous:1428
Bracteoles absent. Flowers unisexual. Anthers dorsifix. New Zealand, S. America.

1429:(B)
Bracteoles 2. Flowers bisexual. Anthers basifix. Madagascar. (Melanophyllaceae)
Melanophyllaceae
1430:(A)
previous:1420
Trees. Corolla valvate. Ovule basal. S.E. Asia. (Axinandra, also in Melastomataceae)

1430:(B)
Herbs, undershrubs, or aquatics. Corolla imbricate or apert. Ovule axillary or apical. N. Hemisphere.
next:1431

1431:(A)
previous:1430
Herbs or undershrubs, terrestrial or marshy, but not free-floating. (Circaea, Gaureae)

1431:(B)
Floating aquatics. Leaves rhomboid, basal half entire, upper half dentate. Petioles swollen. (Trapaceae)
Trapaceae
1432:(A)
previous:1421
Stem woody, rarely herbaceous, then leaves opposite. Stamens 3 - 10, as many as the petals or more. Anthers introrse. Endosperm present.
next:1433

1432:(B)
Stem herbaceous, sometimes woody at base, climbing or prostrate. Leaves alternate. Flowers unisexual, rarely bisexual (Schizopepon), then stamens less than the petals. Stamens 1-5. Anthers extrorse. Endosperm absent.

1433:(A)
previous:1432
Stigma simple, clavate or 2- or 3-lobed.
next:1434

1433:(B)
Stigma undivided, peltate.

1434:(A)
previous:1433
Ovary 1-3-locular. Ovules with a dorsal, or a lateral, or a ventral raphe.
next:1435

1434:(B)
Ovary 4-locular. Innovations with stellate hairs. Ovules with a ventral raphe. S. Africa. (Curtisiaceae)
Curtisiaceae
1435:(A)
previous:1434
Petals without a scale at the base.
next:1436

1435:(B)
Petals with a small scale at the base. Leaves spathulate-linear, tomentose underneath. New Zealand, Australia. (Corokia, in Cornaceae or Escalloniaceae)
Escalloniaceae
1436:(A)
previous:1435
Leaves alternate. Ovules with a lateral or a ventral raphe, the micropyle lateral or external.
next:1438

1436:(B)
Leaves usually opposite, rarely alternate but then ovules with a dorsal raphe and internal micropyle.
next:1437

1437:(A)
previous:1436
Stipules absent. Stamens 4 or 5. Ovules usually with a dorsal raphe and internal micropyle, rarely with a ventral raphe and micropyle external but then flowers in cymose panicles.

1437:(B)
Stipules present. Stamens 4. Petals pilose to papillate inside. Moluccas to Fiji. (Mastixiodendron)

1438:(A)
previous:1436
Stipules absent. Flowers in cynics. Stigma 1, undivided or lobed. Ovules with a lateral raphe and micropyle. Petals very narrow, recurved. Anthers narrow, longer than the filaments. Ovary 2- or 3-locular.

1438:(B)
Stipules either adnate to and scarcely distinct from the base of the petiole, or intrapetiolar, or (rarely) absent. Flowers in umbels, or in capitules, or in racemes, or in spikes. Stigmas 2-20. Ovules with an external micropyle.

1439:(A)
previous:1419
Ovules 2 per locule, pendulous.
next:1440

1439:(B)
Ovules 2 per locule, ascending or patent, or more.
next:1446

1440:(A)
previous:1439
Leaves alternate. Stipules absent.
next:1441

1440:(B)
Leaves alternate or opposite. Stipules present.
next:1443

1441:(A)
previous:1440
Leaves simple, undivided.
next:1442

1441:(B)
Leaves trifoliolate. Trees or shrubs. Stamens 10. Stigma 4- or 5-lobed. Mauritius, Indo-Malesia (Sandoricum)

1442:(A)
previous:1441
Ericoid shrubs or undershrubs. Stamens 5. Stigmas 2 or 3. S. Africa.

1442:(B)
Herbs or non-ericoid undershrubs. Stamens 6-8. Stigmas 3 or 4.

1443:(A)
previous:1440
Leaves alternate. Fruit a drupe, or dry and indehiscent. Endosperm absent. Sepals imbricate. Ovary 2- or 3-locular.
next:1444

1443:(B)
Leaves opposite. Fruit a capsule or a berry. Endosperm present. Disk present. Ovary 2-6-locular.
next:1445

1444:(A)
previous:1443
Petals valvate or imbricate. Stamens 5. Nectaries 5, epipetalous. Fruit a drupe. (Dichapetalum)

1444:(B)
Petals contort. Stamens 10. Nectaries absent. Fruit dry, indehiscent. ( Vatica)

1445:(A)
previous:1443
Sepals and petals valvate. Stamens 8 - 10. Fruit a capsule or a berry.

1445:(B)
Sepals and petals imbricate. Stamens 4 or 5. Fruit a capsule. (Euonymus)

1446:(A)
previous:1439
Flowers unisexual.
next:1447

1446:(B)
Flowers bisexual or polygamous.
next:1449

1447:(A)
previous:1446
Leaves opposite. Corolla imbricate or contort. Ovules 4-many per locule. Fruit a capsule, or dry and indehiscent. Erect, woody plants. Ovary 2-locular.
next:1448

1447:(B)
Leaves alternate. Corolla usually valvate. Ovules 2 or 3 per locule. Fruit a berry or a nut. Plants usually climbing with tendrils, or prostrate.

1448:(A)
previous:1447
Stamens 3-5. Anthers extrorse. Stigma 2-lobed. Ovules 4 or 5 per locule, on the sept. Fruit dry, indehiscent. E. Africa, Madagascar. (Montiniaceae: Grevea)
Montiniaceae
1448:(B)
Stamens 10. Anthers introrse. Stigma punctiform. Ovules many per locule, sub-basal-parietal. Fruit a capsule. S.E. Asia, Pacific. (Astronia)

1449:(A)
previous:1446
Herbs. Corolla valvate. Endosperm present. Leaves alternate. Stipules absent. Stamens 5.
next:1450

1449:(B)
Corolla imbricate or apert, rarely valvate, then stem woody. Plants either woody, or herbs and endosperm absent.
next:1451

1450:(A)
previous:1449
Leaves strongly asymmetric. Flowers in cincinni. S.E. Asia to Malesia. (also in Campanulaceae)

1450:(B)
Leaves usually symmetric. Inflorescences various, usually capitules, or panicles, or flowers solitary.

1451:(A)
previous:1449
Stipules present, sometimes early fugacious. Stem woody.
next:1452

1451:(B)
Stipules absent, rarely present, then calyx valvate and corolla imbricate or apert and either plants herbaceous, or stamens 8; sometimes with an interpetiolary ridge between opposite leaves.
next:1460

1452:(A)
previous:1451
Calyx usually valvate or apert at base only, rarely apert, then leaves alternate and corolla valvate.
next:1453

1452:(B)
Calyx imbricate or apert. Leaves usually opposite. Corolla imbricate. Stamens 4 or 5. Endosperm usually present.

1453:(A)
previous:1452
Leaves alternate.
next:1454

1453:(B)
Leaves opposite. Stamens 4 - 10, free.
next:1456

1454:(A)
previous:1453
Fertile stamens 5, free.
next:1455

1454:(B)
Fertile stamens 10, filaments nearly completely connate. Corolla imbricate. Endosperm sparse to absent.

1455:(A)
previous:1454
Petals valvate. Disk annular. Stamens 5, staminodes absent. Ovary 2-locular, Endosperm present. (Iteaceae, also Escalloniaceae)
Iteaceae Escalloniaceae
1455:(B)
Petals imbricate. Disk absent. Stamens 5 1, staminodes 5. Ovary 5-locular. Endosperm absent. Mexico. (Pterostemonaceae)
Pterostemonaceae
1456:(A)
previous:1453
Stamens 8 - 10.
next:1457

1456:(B)
Stamens 4-6.
next:1458

1457:(A)
previous:1456
Petals straight in. bud, incised or fimbriate, valvate. Ovary 4- 10 locular. Ovules axillary, patent, 2 or more per locule. Endosperm present. (Gynotroches, Pellacalyx)

1457:(B)
Petals in bud curved over the stamens, imbricate. Ovary 4-6-locular. Ovules basal, 1 or 2 per locule. Endosperm absent. S.E. Asia. (Axinandra, also in Melastomataceae)

1458:(A)
previous:1456
Ovary 2-locular. Ovules numerous, on the septs.
next:1459

1458:(B)
Ovary 3-5-locular. Ovules 3 per locule, basal. Borneo. (Dactylocladus, also in Crypteroniaceae)

1459:(A)
previous:1458
Midrib of the leaves prominent above. Flowers about 5mm in diameter. Seeds in 4 rows per ovary. Tropical America. (Alzatea, also in Oliniaceae or Crypteroniaceae)

1459:(B)
Midrib of leaves flat or slightly immersed above. Flowers about 1 mm in diameter. Seeds in 2 vertical rows per ovary. S. Africa. (Rhynchocalyx, also in Crypteroniaceae)

1460:(A)
previous:1451
Anthers with longitudinal slits.
next:1461

1460:(B)
Anthers with 1 or 2 terminal pores. Leaves usually opposite or in whorls, usually with several subequal basal nerves. Calyx imbricate, or apert, or calyptrate, rarely valvate. Filaments incurved in bud. Anthers basifix. Stigma 1.

1461:(A)
previous:1460
Leaves not translucent-glandular-punctate, without marginal nerves.
next:1462

1461:(B)
Leaves translucent-glandular-punctate, with marginal nerves. Stem woody. Calyx imbricate or apert. Stigma 1.

1462:(A)
previous:1461
Woody plants without stipules.
next:1463

1462:(B)
Woody plants with stipules, or plants herbaceous. Calyx valvate. Anthers dorsifix.

1463:(A)
previous:1462
Plants not ericoid. Ovules usually many per locule. Fruit a capsule or a berry.
next:1464

1463:(B)
Ericoid shrublets. Ovules 4 per locule, Fruit dry and indehiscent. Stamens 4 or 5. Stigmas 2. Seed 1. S. Africa.

1464:(A)
previous:1463
Disk absent.
next:1465

1464:(B)
Disk present. Petals 4 or 5, imbricate or valvate. Stamens 4 or 5. (Escalloniaceae)
Escalloniaceae
1465:(A)
previous:1464
Indument absent or of simple hairs. Inflorescences often with sterile marginal flowers with enlarged, showy sepals. Petals usually valvate.
next:1466

1465:(B)
Indument usually of stellate hairs. Sterile marginal flowers absent. Petals usually contort. (Philadelphaceae)
Philadelphaceae
1466:(A)
previous:1465
Inflorescences often with sterile marginal flowers with enlarged showy sepals. Stamens 8 - 10. Endosperm present. (Hydrangeaceae)
Hydrangeaceae
1466:(B)
All flowers fertile and similar. Stamens 5. Endosperm absent. Especially the petals with red dots and lines. Anthers apically appendiculate. Seeds minute, flat. New Caledonia. (Platyspermation, not a Myrtaceae or Rutaceae)