Style 1, with 2-5 stigmas, or styles 2-5. Sepals 5. Leaves alternate.536535. Leaves opposite, gland-dotted. Sepals 4-5. Filaments free or united into several bundles.180. Myrtaceae.Leaves alternate, rarely dotted. Sepals 2-4. Filaments united into a cup at the base. Fruit indehiscent.176. Lecythidaceae.536. Stipules absent. Calyx with open aestivation. Filaments collected in5 bundles. Ovules in the whole ovary 3, pendulous. Style entire or cleft at the top. Fruit a nut.Kissenia,164. Loasaceae.Stipules present. Calyx with imbricate aestivation. Ovules ascending.Style more or less deeply divided. Fruit a berry or a drupe.103. Rosaceae.537. (527.) Style 1, undivided, with a single stigma or with 2 or more stigmas contiguous at their base.538Styles 2-20, free or united below, the stigmas not contiguous at the base.546538. Stamens as many or twice as many as the petals or fewer, 2-16.539Stamens more than twice as many as the petals, or stamens and petals very numerous.543539. Stamens fewer than the petals, at least apparently (by coalescence), rarely as many as the petals, but then, as usually, herbs with tendrils. Leaves alternate. Flowers unisexual, rarely polygamous, 5-merous. Fruit usually succulent and indehiscent. Seeds exalbuminous.223. Cucurbitaceae.Stamens as many or twice as many as the petals. Herbs without tendrils, or woody plants.540540. Sepals valvate in bud. Stamens twice as many, rarely as many as the petals; in the latter case leaves with small stipules. Anthers opening by longitudinal slits. Seeds exalbuminous.182. Oenotheraceae.Sepals imbricate or open in bud, rarely valvate, but then either stamens as many as the petals, leaves without stipules, and seeds albuminous, or anthers opening by apical pores.541541. Leaves opposite or whorled, undivided, exstipulate, usually with several longitudinal nerves. Filaments bent down in bud. Anthers usually opening by apical pores. Stigma 1. Seeds exalbuminous.181. Melastomataceae.Leaves alternate. Stamens as many as the petals. Fruit capsular.Seeds albuminous.542542. Stem herbaceous or woody at the base. Leaves exstipulate. Flowers or inflorescences in the axils of the leaves or terminal. Ovules numerous in each ovary-cell.224. Campanulaceae.Stem woody throughout. Flowers or inflorescences in the axils or on the surface of the leaves. Ovules 6-8 in each ovary-cell. Seeds with an aril.129. Celastraceae.543. Petals numerous. Stigmas 4-20. Seeds albuminous. Herbs or undershrubs.Mesembryanthemum,72. Aizoaceae.Petals 4-8. Stigma 1, entire or lobed. Seeds exalbuminous. Shrubs or trees. Leaves undivided, exstipulate.544544. Sepals 5-8, red, with valvate aestivation. Petals crumpled in the bud.Ovules at first basal, finally parietal. Leaves not dotted.Punica,175. Punicaceae.Sepals 2-4, rarely more, but then with imbricate, open, or closed aestivation.Ovules axile.545545. Leaves alternate, rarely dotted. Sepals 2-4. Filaments united into a cup at the base.176. Lecythidaceae.Leaves opposite, gland-dotted.180. Myrtaceae.546. (537.) Stamens 2-10.547Stamens numerous.548547. Stamens fewer than the petals, at least apparently (by coalescence), more rarely as many as the petals, but then, as usually, tendril-bearing herbs. Styles usually 3. Flowers 5-merous, unisexual or polygamous.Fruit more or less berry-like. Seeds exalbuminous.223. Cucurbitaceae.Stamens as many as the petals, 4-5, and then styles 2 and stem woody, or twice as many. Fruit capsular. Seeds albuminous, rarely exalbuminous, but then flowers 4-merous.96. Saxifragaceae.548. Petals 3-5. Seeds exalbuminous.549Petals numerous. Seeds albuminous. Herbs or undershrubs.550549. Flowers unisexual. Sepals and petals not distinctly differentiated, together8-9. Ovules many in each ovary-cell.Begonia,165. Begoniaceae.Flowers hermaphrodite. Sepals and petals distinctly differentiated, together 10. Ovules few in each ovary-cell. Shrubs.Cydonia,103. Rosaceae.550. Sepals nearly hypogynous, 4. Ovules inserted upon the dissepiments.Fruit bursting irregularly. Embryo straight. Leaves radical, floating, peltate or cordate. Flowers solitary.Nymphaea,76. Nymphaeaceae.Sepals epigynous, usually 5. Ovules basal or parietal. Fruit opening loculicidally. Embryo curved. Leaves not floating. Flowers in cymes or panicles.Mesembryanthemum,72. Aizoaceae.551. (52.) Ovary superior or nearly so.552Ovary inferior to half-inferior.728552. Ovary 1, entire or lobed.553Ovaries 2 or more, separate or cohering at the base only.719553. Ovary 1-celled, sometimes incompletely chambered.554Ovary completely or almost completely 2- or more-celled, at least at the time of flowering (sometimes incompletely septate in the bud).604554. Ovule 1.555Ovules 2 or more.570555. Ovule erect or ascending.556Ovule pendulous or descending. Style simple.564556. Style 1, entire or cleft at the top into 2 or more stigmas (or branches stigmatose on the inside).557Styles 3-5, free or united at the base. Stamens 5, opposite the petals.563557. Stamens free from the corolla or inserted on its base.558Stamens inserted on the upper part or near the middle of the corolla.561558. Corolla (or corolla-like perianth) with valvate or folded aestivation.Leaves exstipulate.69. Nyctaginaceae.Corolla with imbricate or open aestivation; in the latter case leaves stipulate. Stamens as many as the divisions of the corolla.559559. Flowers 5-merous. Stigmas 3. Herbs. Leaves opposite, stipulate.Cometes,75. Caryophyllaceae.Flowers 4-merous. Stigma 1.560560. Flowers unisexual, solitary or in fascicles. Seeds albuminous. Herbs.Leaves all radical, exstipulate.Litorella,218. Plantaginaceae.Flowers hermaphrodite, in racemes or panicles. Seeds exalbuminous.Shrubs or trees. Leaves opposite, stipulate.Salvadora,131. Salvadoraceae.561. Stamens fewer than the divisions of the corolla, 4. Leaves whorled.Shrubs.205. Verbenaceae.Stamens as many as the divisions of the corolla.562562. Stamens alternating with the divisions of the corolla (or the petaloid staminodes). Seeds albuminous.68. Amarantaceae.Stamens opposite the divisions of the corolla (or petaloid perianth), 4.Stigma 1. Seeds exalbuminous. Leaves alternate. Shrubs or trees.55. Proteaceae.563. (556.) Sepals 2. Anthers turned outwards. Styles 3. Seeds with curved embryo.74. Basellaceae.Sepals 5. Anthers turned inwards. Styles 5. Seeds with straight embryo.192. Plumbaginaceae.564. Petals in the male flowers 2-4, united below, in the female 1-2, free.Sepals in the male flowers 4, in the female 1-2. Stamens 4-10, with united filaments.80. Menispermaceae.Petals united below in the flowers of both sexes, or flowers hermaphrodite.565565. Stamens fewer than the divisions of the calyx or corolla, 4. Anthers opening by a transverse slit. Flowers 5-merous, irregular. Seeds albuminous.566Stamens as many as or more than the divisions of the corolla, rarely(Ericaceae) fewer, but then only 3.567566. Ovary 1-celled from the beginning. Stigma 2-lobed, rarely entire, and then corolla-lobes very unequal.215. Globulariaceae.Ovary originally 2-celled, one cell becoming rudimentary. Stigma entire.Corolla-lobes almost equal.Microdon,208. Scrophulariaceae.567. Stamens as many as and opposite the divisions of the corolla (or corolla-like perianth), 4, inserted on the upper part or near the middle of the corolla. Corolla valvate in bud. Seeds exalbuminous.55. Proteaceae.Stamens as many as and alternate with the divisions of the corolla, or fewer or more numerous, inserted on the base of the corolla or free from it.568568. Stamens 10, perigynous. Anthers opening by two longitudinal slits.Flowers regular.171. Thymelaeaceae.Stamens 3-8, hypogynous.569569. Flowers regular. Sepals 3-4. Corolla-lobes 3-4. Anthers opening by two pores or slits. Seeds albuminous.189. Ericaceae.Flowers irregular. Sepals 5. Corolla-lobes 3 or 5. Stamens 8. Anthers opening by a single pore or slit. Seeds exalbuminous.Securidaca,120. Polygalaceae.570. (554.) Ovules 2.571Ovules 3 or more.578571. Stamens 4, fewer than the divisions of the corolla. Flowers irregular.Leaves opposite.572Stamens 3 or more, as many as or more than the divisions of the corolla.573572. Anthers opening by pores. Fruit a drupe. Seeds exalbuminous. Climbing shrubs. Flowers in clusters.Afromendoncia,216. Acanthaceae.Anthers opening by longitudinal slits. Stigmas 2. Fruit a capsule or nut. Seeds albuminous. Prostrate herbs. Flowers solitary.Linariopsis,210. Pedaliaceae.573. Stamens as many as the divisions of the corolla, 4-5. Leaves simple, entire toothed or lobed. Flowers regular.574Stamens more than the divisions of the corolla, rarely the same number, but then, as usually, leaves compound.576574. Stamens opposite to the divisions of the corolla. Calyx with valvate, corolla with contorted aestivation. Ovules ascending. Leaves stipulate.Waltheria,144. Sterculiaceae.Stamens alternating with the divisions of the corolla. Leaves exstipulate.575575. Ovules erect. Style 2-parted, rarely simple, and then herbs. Calyx with imbricate, corolla with valvate or folded aestivation.202. Convolvulaceae.Ovules pendulous. Style simple or wanting. Shrubs or trees.132. Icacinaceae.576. Stamens more than the divisions of the corolla, but fewer than twice as many, 4-7, usually 6. Anthers opening by pores. Corolla 4-lobed.Leaves whorled, undivided, linear.Salaxis,189. Ericaceae.Stamens as many or twice as many as the divisions of the corolla, or more.Leaves alternate.577577. Corolla regular, 5-partite, with imbricate aestivation. Stamens 10, five of them sometimes sterile. Ovules erect, straight. Shrubs or trees.Leaves compound, exstipulate. Flowers in panicles or racemes.Connarus,104. Connaraceae.Corolla regular, with valvate aestivation, or irregular. Ovules inverted.Leaves usually stipulate.105. Leguminosae.578. (570.) Ovules basal or inserted upon a free central placenta.579Ovules parietal.587579. Ovules 3, pendulous. Style simple. Fertile stamens as many as and opposite the corolla-lobes, 5-6, or fewer, 3. Flowers regular. Fruita drupe. Trees, shrubs, or undershrubs. Leaves alternate.Olax,59. Olacaceae.Ovules 3, ascending, or more.580580. Style 3-cleft. Stamens more than corolla-lobes, 8-30, rarely fewer, 3.Sepals 2. Corolla-lobes 5. Herbs or undershrubs.73. Portulacaceae.Style simple or 2-cleft, rarely (Caryophyllaceae) 3-cleft, but then sepals, corolla-lobes and stamens 5 each.581581. Stamens as many as and opposite the divisions of the corolla, 3-7. Style simple.582Stamens as many as and alternate with the divisions of the corolla, or fewer or more numerous.583582. Fruit a capsule. Herbs or undershrubs.191. Primulaceae.Fruit a nut, berry, or drupe. Shrubs or trees, very rarely herbs or undershrubs.Leaves alternate, gland-dotted.190. Myrsinaceae.583. Stamens 5. Flowers regular.584Stamens 2, 4, or 8.585584. Leaves opposite, stipulate. Corolla deeply divided, with imbricate aestivation. Styles 1 or 3. Herbs or undershrubs.75. Caryophyllaceae.Leaves alternate, exstipulate. Styles 1-2.202. Convolvulaceae.585. Stamens 4, free from the corolla, or 8. Flowers regular, 4-merous. Stigma1. Seeds albuminous. Low shrubs. Leaves whorled, narrow.189. Ericaceae.Stamens 4, inserted on the corolla-tube, or 2.586586. Anthers opening by a transverse slit. Stamens 2. Style wanting. Sepals2 or 5. Corolla distinctly 2-lipped. Leaves alternate or all radical.Herbs.214. Lentibulariaceae.Anthers opening by two longitudinal slits. Style present. Ovules 4.Leaves opposite or whorled.205. Verbenaceae.587. (578.) Ovules attached to a single placenta. Style simple. Stamens as many as or more than the divisions of the corolla. Leaves alternate, compound or reduced to the dilated petiole.105. Leguminosae.Ovules attached to two or more placentas. 588.588. Style simple or 2-cleft.589Style 3-10-cleft. Flowers unisexual or polygamous.603589. Fertile stamens fewer than the divisions of the corolla, 1-4.590Fertile stamens as many as or more than the divisions of the corolla.595590. Fertile stamen 1, staminodes 3. Corolla-lobes 4. Stigma 2-cleft. Herbs.Leaves opposite, undivided.199. Gentianaceae.Fertile stamens 2 or 4.591591. Fertile stamens 2. Herbs or undershrubs. Leaves undivided. Flowers irregular.592Fertile stamens 4.594592. Seeds 4, with thin albumen. Fruit a capsule with a drupaceous rindOvules 4-16. Stigma 2-parted. Staminodes 3.Martynia,211. Martyniaceae.Seeds numerous, without albumen. Ovules numerous.593593. Disc wanting. Ovary and fruit ovate. Placentas little projecting.Staminodes none. Small water-plants. Leaves opposite.Dintera,208. Scrophulariaceae.Disc rarely wanting, and then ovary and fruit linear or oblong and placentas much projecting.213. Gesneraceae.594. Placentas 2. Fruit a berry or nut. Seeds exalbuminous. Shrubs or trees. Leaves compound.209. Bignoniaceae.Placentas 4. Fruit a capsule. Seeds albuminous. Herbs without green colour. Leaves scale-like. Flowers irregular.212. Orobanchaceae.595. (589.) Stamens as many as the divisions of the corolla, 3-8.596Stamens more numerous than the divisions of the corolla, 7 or more.Shrubs or trees.600596. Style stigmatose beneath the thickened, often 2-lobed apex. Placentas2. Corolla with contorted aestivation. Flowers regular or nearly so,5-, rarely 4-merous. Juice milky.200. Apocynaceae.Style stigmatose at the apex or between the apical lobes. Juice not milky.597597. Leaves and stem without green colour; stem herbaceous, leaves scale-like.Flowers irregular. Stamens 4. Placentas 4.212. Orobanchaceae.Leaves green, rarely (Gentianaceae) without green colour, but then flowers regular, stamens 5 and placentas 2.598598. Leaves alternate, without stipules. Stem woody. Bark resinous.Flowers regular, 5-merous. Stigma 1.Pittosporum,97. Pittosporaceae.Leaves opposite or whorled, rarely alternate or all radical, but then stem herbaceous.599599. Stem woody. Leaves opposite or whorled, usually stipulate. Flowers4-merous.198. Loganiaceae.Stem herbaceous or woody at the base only, rarely throughout, but then flowers 5-merous. Leaves exstipulate.199. Gentianaceae.600. Stamens 7-18, with united filaments. Placentas 3-5.601Stamens 23 or more, with free filaments. Leaves undivided.602601. Sepals 3. Corolla-lobes 4-6. Stamens 7-9 or 14-18. Anthers opening outwards.Cinnamosma,157. Winteranaceae.Sepals 4-5. Corolla-lobes 4-5. Stamens 8-10. Anthers opening inwards or laterally.118. Meliaceae.602. Corolla-lobes 6. Sepals 3. Filaments and styles very short. Placentas numerous, confluent. Albumen abundant, ruminate.81. Anonaceae.Corolla-lobes 11-14. Sepals 2-4. Filaments and styles long. Placentas2, two-cleft. Albumen scanty, uniform.Hoplestigma,194. Hoplestigmataceae.603. (588.) Stamens as many as the corolla-lobes, 3-5. Fruit a capsule.Herbs or undershrubs.162. Achariaceae.Stamens twice as many as the corolla-lobes, 10. Fruit a berry. Trees.Carica,163. Caricaceae.604. (553.) Ovary 2-celled.605Ovary 3- or more-celled.669605. Ovules solitary in each ovary-cell.606Ovules 2 or more in each ovary-cell.621606. Ovules erect or ascending.607Ovules pendulous, descending, or horizontal.611607. Fertile stamens 2 or 4.608Fertile stamens 5 or 6.609608. Seeds borne on a hook-like outgrowth of the funicle, exalbuminous. Fruit capsular.216. Acanthaceae.Seeds not on a hook-like outgrowth of the funicle.205. Verbenaceae.609. Stamens opposite the divisions of the corolla. Anthers opening outwards.Stigma 1. Trees or shrubs.193. Sapotaceae.Stamens alternate with the divisions of the corolla. Anthers opening inward.610610. Stigma 1. Corolla with imbricate or contorted aestivation. Seeds exalbuminous. Herbs. Leaves alternate, exstipulate.Rochelia,204. Borraginaceae.Stigmas 2. Corolla with valvate aestivation. Seeds albuminous. Trees or shrubs. Leaves opposite or whorled, stipulate.Gaertnera,219. Rubiaceae.611. (606.) Fertile stamens 2 or 4.612Fertile stamens 5 or more.618612. Stamens 4, free from the corolla. Corolla regular or nearly so, 2-4-lobed.Seeds with abundant albumen.189. Ericaceae.Stamens inserted on the corolla.613613. Corolla scarious, regular, 4-lobed. Stamens 4. Stigma 1. Fruit opening by a lid. Seeds albuminous.Plantago,218. Plantaginaceae.Corolla not scarious, more or less irregular, rarely regular, but then stamens2 or stigmas 2.614614. Corolla regular. Stamens 2, alternating with the ovary-cells. Disc wanting. Seeds with scanty albumen. Shrubs. Leaves compound, but sometimes with a single leaflet.Jasminum,197. Oleaceae.Corolla more or less irregular, rarely regular, but then stamens 4. Leaves simple.615615. Flowers regular. Stamens 4. Anthers opening by two slits. Style 2-cleft.Fruit capsular. Seeds exalbuminous. Low shrubs. Leaves alternate.Wellstedia,204. Borraginaceae.Flowers more or less irregular. Leaves opposite or whorled, rarely alternate, but then anthers opening by a single slit or pore.616616. Leaves alternate, at least the upper ones. Anthers opening by a single slit or pore. Seeds albuminous.208. Scrophulariaceae.Leaves opposite or whorled.617617. Fruit a capsule. Seeds borne on a hook-like process of the funicle, exalbuminous.216. Acanthaceae.Fruit a drupe or a nut. Seeds not on a hook-like process of the funicle, albuminous. Stamens 4. Anthers opening by two slits. Herbs.205. Verbenaceae.618. (611.) Flowers distinctly irregular. Stamens united at the base with one another and with the corolla. Anthers opening by a single pore.120. Polygalaceae.Flowers regular or nearly so. Anthers opening by two slits or pores.619619. Flowers unisexual. Stamens free from the corolla.122. Euphorbiaceae.Flowers hermaphrodite. Leaves undivided.620620. Calyx and corolla of 2-4 divisions each. Stamens 6-8, free from the corolla or nearly so.189. Ericaceae.Calyx and corolla of 5 divisions each. Stamens 5, attached to the corolla; filaments free. Stigmas 2.200. Apocynaceae.621. (605.) Ovules 2 in each cell of the ovary.622Ovules 3 or more in each cell of the ovary.640622. Fertile stamens 2-3.623Fertile stamens 4-30.626623. Flowers regular. Stamens 2, alternating with the ovary-cells, rarely 3.Disc wanting.197. Oleaceae.Flowers more or less irregular. Stamens not regularly alternating with the ovary-cells.624624. Leaves stipulate, alternate. Style 2-cleft. Petals 2-cleft. Seeds exalbuminous.Trees or shrubs.Tapura,121. Dichapetalaceae.Leaves exstipulate, opposite or whorled, rarely alternate, but then, asnearly always, style simple.625625. Seeds borne on a hook-like outgrowth of the funicle, exalbuminous.216. Acanthaceae.Seeds not on a hook-like outgrowth of the funicle, albuminous.208. Scrophulariaceae.626. (622.) Fertile stamens 4.627Fertile stamens 5-30.634627. Corolla with 4 divisions.628Corolla with 5 divisions.632628. Flowers more or less irregular. Seeds exalbuminous. Leaves opposite or whorled, without stipules.216. Acanthaceae.Flowers regular. Seeds albuminous.629629. Corolla scarious, regular. Stigma entire. Fruit opening by a lid. Leaves sessile.Plantago,218. Plantaginaceae.Corolla not scarious.630630. Leaves alternate. Styles or stigmas 2. Ovules erect202. Convolvulaceae.Leaves opposite or whorled. Shrubs or trees.631631. Leaves provided with stipules or connected at their base by transverse lines or ridges.198. Loganiaceae.Leaves without either stipules or transverse lines or ridges at their base.197. Oleaceae.632. Leaves alternate, at least the upper ones. Flowers regular or nearly so.Corolla white. Stigma entire or 4-lobed. Fruit a drupe. Seeds albuminous.217. Myoporaceae.Leaves opposite or whorled, rarely the upper ones alternate, but then flowers irregular, stigma 2-partite and fruit a capsule or nut.633633. Seeds with scanty albumen. Plants with glandular hairs.210. Pedaliaceae.Seeds without albumen.216. Acanthaceae.634. (626.) Stamens 5.635Stamens 8-30.639635. Style (or styles) stigmatose beneath the thickened and sometimes 2-lobed apex. Corolla with contorted aestivation.200. Apocynaceae.Style (or styles) stigmatose at the apex or between the apical lobes.636636. Leaves opposite or whorled, stipulate or connected by transverse lines or ridges. Shrubs or trees.198. Loganiaceae.Leaves alternate.637637. Ovules erect. Corolla lobed or nearly entire, usually folded in bud.202. Convolvulaceae.Ovules pendulous. Styles or stigmas 2. Corolla lobed, but imbricate in bud, or deeply divided. Shrubs or trees.638638. Leaves stipulate. Flowers in axillary cymes or panicles. Fruit a drupe.Dichapetalum,121. Dichapetalaceae.Leaves exstipulate. Flowers in terminal spikes or heads. Fruit a capsule.Lonchostoma,100. Bruniaceae.639. Stamens 8. Style 1. Flowers hermaphrodite.Salaxis,189. Ericaceae.Stamens 10-30. Styles 2. Flowers unisexual or polygamous.Euclea,195. Ebenaceae.640. (621.) Fertile stamens 1-4.641Fertile stamens 5-16.658641. Flowers more or less irregular.642Flowers regular.652642. Leaves opposite or whorled.643Leaves alternate, at least the upper ones.648643. Leaves provided with stipules or connected at their base by transverse lines or ridges. Shrubs or trees.198. Loganiaceae.Leaves rarely with stipules or transverse lines or ridges at their base, and then herbs or undershrubs.644644. Seeds with distinctly developed albumen.645Seeds with very scanty albumen or without any.646645. Seeds with funicles provided with a wart-like outgrowth. Placentas remaining attached to the beaked and recurved valves of the capsule.Disc not distinctly developed. Calyx deeply divided. Corolla-lobes5, with descending aestivation. Anther-halves not confluent. Stigma lobed. Flowers in spikes.216. Acanthaceae.Seeds without an outgrowth from the funicle or without a funicle. Placentas usually separating from the valves of the capsule. Disc more or less distinctly developed.208. Scrophulariaceae.646. Seeds with scanty albumen. Plants with glandular hairs. Stamens 4.210. Pedaliaceae.Seeds without albumen.647647. Seeds borne on a large hook-like outgrowth of the funicle, rarely on a small cushion-shaped one, and then herbs. Fruit a capsule, the valves bearing the split dissepiment. Ovules usually few. Leaves simple.216. Acanthaceae.Seeds not on a hook-like outgrowth of the funicle, more or less distinctly winged or marginate. Fruit a capsule, the valves usually separating from the more or less dilated dissepiment, or a nut or berry. Ovules numerous. Stamens 4. Leaves usually compound. Shrubs or trees.209. Bignoniaceae.648 (642.) Corolla with valvate or folded aestivation. Partition of the ovary usually placed obliquely to the median plane of the flower.207. Solanaceae.Corolla with imbricate, not folded aestivation. Partition of the ovary usually placed transversely to the median plane of the flower.649640. Fruit a drupe. Ovules in each ovary-cell 4-6, in pairs placed one above the other. Stigma 1. Stamens 4. Anther-halves confluent at the apex.Shrubs.Oftia,217. Myoporaceae.Fruit a capsule, nut, or berry. Ovules usually numerous.650650. Seeds exalbuminous, usually horizontal and winged. Ovules numerous.Stigmas 2. Stamens 4. Shrubs or trees. Leaves usually compound.209. Bignoniaceae.Seeds albuminous. Leaves simple, but sometimes dissected.651651. Albumen very thin, nearly membranous. Stigmas or stigma-lobes 2.Stamens 4. Plants with glandular hairs. Lower leaves opposite.210. Pedaliaceae.Albumen distinctly developed.208. Scrophulariaceae.652. (641.) Corolla with contorted aestivation. Stamens 4.653Corolla with valvate or imbricate, not contorted aestivation.654653. Style stigmatose below the apex. Mostly shrubs or trees.200. Apocynaceae.Style stigmatose at the apex or between the apical lobes. Fruit a septicidal capsule. Herbs or undershrubs.199. Gentianaceae.654. Corolla scarious. Stamens 4. Disc wanting. Stigma 1. Fruit dehiscing by a lid. Flowers in spikes or heads.Plantago,218. Plantaginaceae.Corolla not scarious. Fruit dehiscing lengthwise or indehiscent.655655. Anthers with confluent halves, opening by a transverse slit. Disc more or less distinctly developed.208. Scrophulariaceae.Anthers with distinct halves, opening by two longitudinal slits or apical pores.656656. Leaves alternate, simple, but sometimes dissected. Corolla usually folded in bud. Partition of the ovary usually placed obliquely to the median plane of the flower. Ovules generally numerous.207. Solanaceae.Leaves opposite or whorled, rarely alternate, but then compound.Corolla not folded. Trees, shrubs, or undershrubs.657657. Leaves provided with stipules or connected at their base by transverse lines or ridges, simple, opposite or whorled. Ovules usually numerous.198. Loganiaceae.Leaves without either stipules or transverse lines or ridges at their base.Ovules 3-4 in each ovary-cell. Disc none.197. Oleaceae.658. (640.) Leaves opposite or whorled.659Leaves alternate.662659. Leaves provided with stipules or connected at their base by transverse lines or ridges. Shrubs or trees.198. Loganiaceae.Leaves without stipules, but sometimes connected by transverse lines; in this case herbs or undershrubs. Stamens 5.660660. Corolla with imbricate, not contorted aestivation. Style stigmatose at the entire apex. Fruit a berry. Shrubs growing upon trees.Dermatobotrys,208. Scrophulariaceae.Corolla with contorted aestivation.661661. Style stigmatose at the apex or between the apical lobes. Fruit a septicidal capsule. Herbs or undershrubs.199. Gentianaceae.Style stigmatose below the apex. Mostly shrubs or trees.200. Apocynaceae.662. Corolla with valvate or folded aestivation.663Corolla with imbricate or contorted aestivation.665663. Stamens free from the corolla. Herbs.Lightfootia,224. Campanulaceae.Stamens attached to the corolla.664664. Corolla almost entire, somewhat irregular. Trees.Humbertia,202. Convolvulaceae.Corolla lobed, rarely almost entire, but then herbs or undershrubs.207. Solanaceae.665. Corolla with contorted aestivation. Style stigmatose beneath the thickened and sometimes 2-lobed apex.200. Apocynaceae.Corolla with imbricate, not contorted aestivation. Style (or styles) stigmatose at the apex or between the apical lobes.666666. Styles 2, free or united at the base. Disc wanting. Corolla regularSeeds albuminous; embryo straight. Herbs or undershrubs.203. Hydrophyllaceae.Style 1, undivided.667667. Seeds winged, exalbuminous. Fruit a loculicidal capsule. Stigmas 2.Corolla slightly irregular. Shrubs.209. Bignoniaceae.Seeds not winged, albuminous.668668. Seeds with straight embryo. Fruit a capsule opening lengthwise. Stigma1. Corolla slightly irregular; tube short.208. Scrophulariaceae.Seeds with curved embryo. Fruit a capsule opening by a lid, or a berry.Anthers opening by two longitudinal slits.207. Solanaceae.669. (604.) Ovule 1 in each ovary-cell670Ovules 2 or more in each ovary-cell.685670. Stamens as many as and alternate with the divisions of the corolla, or fewer.671Stamens as many as and opposite the divisions of the corolla, or more.679671. Flowers unisexual, regular. Corolla divided almost to the base. Disc wanting. Fruit a drupe. Shrubs or trees. Leaves alternate.Ilex,128. Aquifoliaceae.Flowers hermaphrodite, rarely polygamous.672672. Anthers opening by an apical pore. Stamens 5. Ovary 3-celled. Flowers irregular.120. Polygalaceae.Anthers opening by two longitudinal slits sometimes confluent at the apex; in the latter case ovary 4-celled.673673. Stamens free from the corolla or scarcely adhering to it, 4. Flowers regular.189. Ericaceae.Stamens evidently attached to the corolla-tube.674674. Corolla scarious, 4-lobed, regular. Stamens 4. Disc wanting. Stigma 1.Ovules pendulous or laterally affixed. Fruit opening by a lid.Plantago,218. Plantaginaceae.Corolla not scarious.675675. Corolla with valvate or folded aestivation, regular. Stamens 5. Leaves alternate.202. Convolvulaceae.Corolla with imbricate or contorted aestivation.676676. Stamens as many as the divisions of the corolla. Ovules with the micropyle directed upwards. Leaves, all or the upper ones, alternate, undivided.Inflorescences cymose, usually one-sided and coiled when young.204. Borraginaceae.Stamens fewer than the divisions of the corolla, rarely the same number, but then ovules with the micropyle directed downwards and leaves opposite or whorled.677677. Leaves alternate, at least the upper ones, undivided. Corolla regular,5-lobed. Stamens 4. Anther-halves confluent at the apex. Ovules pendulous, the micropyle directed upwards. Fruit a drupe. Shrubs.Myoporum,217. Myoporaceae.Leaves opposite or whorled, rarely alternate, but then corolla 2-lipped.Ovules with the micropyle directed downwards.678678. Ovary deeply divided, more rarely slightly lobed, and then, as usually, fruit dry. Inflorescence composed of sometimes one-flowered cymes arranged in false whorls.206. Labiatae.Ovary entire, rarely slightly lobed, and then fruit succulent, drupaceous.Inflorescence usually of the racemose type.205. Verbenaceae.679. (670.) Anthers 1-celled, opening by a single slit. Stamens numerous.Calyx with valvate, corolla with contorted aestivation. Leaves simple, stipulate.142. Malvaceae.Anthers 2-celled.680680. Style 1, undivided.681Styles 2 or more, free or partially united.683681. Stamens more than the divisions of the corolla, 4-8. Fruit a capsule or nut. Leaves undivided, exstipulate.189. Ericaceae.Stamens as many as or more than the divisions of the corolla; in the latter case, 12 or more. Fruit a berry.682682. Corolla with valvate aestivation. Stamens 5. Leaves pinnate.Leea,138. Vitaceae.Corolla with imbricate aestivation. Leaves undivided.193. Sapotaceae.683. Flowers hermaphrodite. Sepals free. Corolla 5-partite. Stamens 10.Ovary lobed, 5-celled. Styles 5, free. Herbs or undershrubs, rarely shrubs.108. Oxalidaceae.Flowers unisexual or polygamous, rarely hermaphrodite, but then sepalsunited below and ovary-cells twice as many as the styles.684684. Leaves exstipulate, undivided. Shrubs or trees. Flowers solitary or in cymes, axillary. Corolla with contorted or valvate aestivation.195. Ebenaceae.Leaves stipulate, rarely exstipulate, but then herbs or undershrubs, and corolla with imbricate, not contorted aestivation. Flowers in racemes or panicles, unisexual.122. Euphorbiaceae.685. (669.) Ovules 2 in each ovary-cell.686Ovules 3 or more in each ovary-cell.701686. Stamens as many as and alternate with the divisions of the corolla, or fewer.687Stamens as many as and opposite the divisions of the corolla, or more.693687. Stamens 4.688Stamens 5-7, rarely (Dichapetalaceae) 2-3 only fertile.691688. Corolla irregular, 5-lobed. Seeds with scanty albumen. Herbs. Leaves opposite, lobed, stipulate.Pretrea,210. Pedaliaceae.Corolla regular, 4-lobed or 4-parted. Seeds with abundant albumen.Leaves opposite and exstipulate, or alternate.689689. Flowers unisexual. Corolla deeply divided. Fruit a drupe.Ilex,128. Aquifoliaceae.Flowers hermaphrodite or polygamous. Fruit a capsule or nut.690690. Stamens free from the corolla or slightly adhering to it at the base.189. Ericaceae.Stamens evidently attached to the corolla-tube.Plantago,218. Plantaginaceae.691. Ovary 4-8-celled. Disc wanting. Corolla deeply divided. Flowers unisexual.Ilex,128. Aquifoliaceae.Ovary 3-celled. Disc present.692692. Corolla folded in the bud. Ovules erect. Seeds albuminous.Ipomoea,202. Convolvulaceae.Corolla not folded in the bud. Ovules pendulous. Stigmas 3. Seeds exalbuminous. Shrubs or trees. Leaves stipulate.121. Dichapetalaceae.693. (686.) Stamens as many to twice as many as the divisions of the corolla.694Stamens more than twice as many as the divisions of the corolla.698694. Leaves stipulate, alternate. Sepals united below, valvate in bud.144. Sterculiaceae.Leaves exstipulate, rarely (Oxalidaceae) stipulate, but then sepals free and imbricate in bud.695695. Style 1, undivided.696Styles 2-8, free or partially united.697696. Stamens 8-10; filaments united; anthers opening by longitudinal slits.118. Meliaceae.Stamens 4-8; filaments free, rarely united, but then anthers opening byapical pores. Leaves undivided.189. Ericaceae.697. Sepals free. Corolla deeply divided. Stamens 10. Filaments united in a cup at the base. Styles 5. Herbs or undershrubs, rarely shrubs.Leaves alternate. Flowers hermaphrodite.108. Oxalidaceae.Sepals united below. Filaments free or united in several bundles. Shrubs or trees.195. Ebenaceae.698. Leaves exstipulate, undivided. Styles 2-8, free or united at the base.Shrubs or trees.195. Ebenaceae.Leaves stipulate, rarely exstipulate, but then style 1, undivided.699699. Corolla with valvate aestivation. Style simple. Shrubs or trees. Leaves undivided.145. Scytopetalaceae.Corolla with contorted, calyx with valvate aestivation.700700. Anthers 1-celled.142. Malvaceae.Anthers 2-celled.144. Sterculiaceae.701. (685.) Stamens as many as and alternate with the divisions of the corolla, or fewer.702Stamens as many as and opposite the divisions of the corolla, or more.708702. Stamens fewer than the divisions of the corolla, 4. Flowers irregular.Albumen scanty.703Stamens as many as the divisions of the corolla.704703. Anthers opening by a transverse slit. Stigma 1. Ovary 3-celled. Leaves whorled. Shrubs.Bowkeria,208. Scrophulariaceae.Anthers opening by two longitudinal slits. Stigmas 2.210. Pedaliaceae.704. Corolla with valvate or folded aestivation.705Corolla with imbricate or contorted aestivation.706705. Leaves opposite or whorled. Calyx and corolla with valvate aestivation.Ovary 5-7-celled. Embryo straight. Shrubs.Roussea,96. Saxifragaceae.Leaves alternate. Corolla with folded aestivation. Embryo curved.207. Solanaceae.706. Stamens free from the corolla or adhering to it at the base.189. Ericaceae.Stamens attached on the middle or the upper part of the corolla-tube.707707. Fruit a capsule. Disc wanting. Stamens 4. Leaves without stipules.Plantago,218. Plantaginaceae.Fruit a berry or a drupe. Leaves opposite or whorled, provided with stipules or connected by transverse lines at the base. Shrubs or trees.198. Loganiaceae.708. (701.) Stamens 3-12.709Stamens numerous.714709. Flowers unisexual. Fruit a berry. Trees or shrubs.710Flowers hermaphrodite or polygamous.711710. Flowers monoecious. Calyx subentire. Corolla of the male flowerswith a long tube, of the female ones with free petals. Staminodes absent in the female flowers. Ovary sessile. Style short. Stigmas 5.Leaves lobed.Cylicomorpha,163. Caricaceae.Flowers dioecious. Calyx of free sepals. Corolla with a short tube.Staminodes present in the female flowers. Ovary shortly stalked. Style long. Stigma 1, lobed. Leaves undivided.Cercopetalum,87. Capparidaceae.711. Styles 5, free. Stamens 10, united at the base. Calyx with imbricate, corolla with contorted, aestivation.108. Oxalidaceae.Style 1, simple or divided; in the latter case calyx with valvate aestivation.712712. Leaves exstipulate, undivided.189. Ericaceae.Leaves stipulate. Calyx with valvate or closed, corolla with contorted, aestivation.713713. Anthers 1-celled, opening by a single slit, twisted, 5. Leaves digitate.Trees.Ceiba,143. Bombacaceae.Anthers 2-celled, opening by two slits or pores.144. Sterculiaceae.714. (708.) Corolla of numerous divisions. Styles 5. Leaves without stipules.Herbs.Orygia,72. Aizoaceae.Corolla of 5 divisions.