1554:(A)
previous:1519
Ovary 1-locular.
next:1555
1554:(B)
Ovary 2-more-locular.
next:1560
1555:(A)
previous:1554
Flowers bisexual.
next:1556
1555:(B)
Flowers unisexual. Herbs. Stipules present. Sepals and petals 4 or 5. Placenta parietal. Endosperm absent. Embryo straight. Hawaii. (Hillebrandia)
1556:(A)
previous:1555
Placentas parietal, sometimes protruding into the locule.
next:1557
1556:(B)
Placenta central. Herbs. Stipules present. Sepals 2. Petals 4-6. Endosperm present. Embryo curved. (Portulaca)
1557:(A)
previous:1556
Petals imbricate.
next:1558
1557:(B)
Petals valvate. Undershrubs. Endosperm scanty. (Philadelphaceae)
Philadelphaceae
1558:(A)
previous:1557
Woody plants without stinging hairs. Endosperm copious.
next:1559
1558:(B)
Usually herbs, rarely shrublets (Mentzelia) or woody climbers (Fuertesia), usually hispid and stinging. Endosperm scanty to absent. Leaves usually divided. Anthers introrse. Mainly American, rarely from S.W. Africa or Arabia (Kissenia)
1559:(A)
previous:1558
Parietal placentas slightly protruding into the locule. Leaves undivided. Anthers extrorse.
1559:(B)
Parietal placentas protruding far into the locule. Undershrubs.
1560:(A)
previous:1554
Ovule 1 per locule.
next:1561
1560:(B)
Ovules 2-more per locule.
next:1563
1561:(A)
previous:1560
Ovule pendulous. Endosperm present.
next:1562
1561:(B)
Ovule ascending. Corolla imbricate. Endosperm absent..
1562:(A)
previous:1561
Trees, or shrubs, or undershrubs. Leaves alternate, usually compound or divided. Fruit a berry or a drupe. Corolla valvate. Styles 5 - more.
1562:(B)
Undershrubs. Leaves opposite, divided. Fruit a capsule. Stamens 12. W. N. America. (Philadelphaceae: Whipplea)
Philadelphaceae
1563:(A)
previous:1560
Flowers bisexual, rarely polygamous.
next:1564
1563:(B)
Flowers unisexual. Herbs. Stipules present. Ovules many. Fruit a capsule. Endosperm absent.
1564:(A)
previous:1563
Trees, shrubs, rarely undershrubs. Petals 2-10.
next:1565
1564:(B)
Herbs or undershrubs. Petals numerous. Ovules many. Endosperm present.
next:1571
1565:(A)
previous:1564
Leaves opposite or alternate. Stipules absent. Ovules 1 or 2 or many.
next:1566
1565:(B)
Leaves alternate. Stipules present. Ovules usually 2 per locule, rarely 1 ascending, then corolla imbricate and endosperm absent (Rosaceae) Petals 5.
next:1569
1566:(A)
previous:1565
Leaves usually opposite. Stamens not in epipetalous groups. Ovules usually many. Fruit a capsule. Endosperm copious.
next:1567
1566:(B)
Leaves alternate. Stamens in epipetalous groups. Ovules 1 or 2 per locule. Fruit dry, indehiscent. Endosperm absent. Shrubs or undershrubs, Leaves lobed. Stamens many. Styles 2- or 3-fid. America. (Mentzelia)
1567:(A)
previous:1566
Leaves simple, sometimes deeply lobed. Disk absent.
next:1568
1567:(B)
Leaves 3-foliolate, apparently in whorls of 6 leaflets. Disk present. Leaves opposite, apparently 6 in whorl. Australia. (Baueraceae)
Baueraceae
1568:(A)
previous:1567
Indument absent or of simple hairs. Inflorescence sometimes with sterile marginal flowers with enlarged sepals. Rhizomatous herbs, or shrubs, or trees. (Hydrangeaceae)
Hydrangeaceae
1568:(B)
Indument generally of stellate hairs. Sterile marginal flowers never present. Shrubs, sometimes prostrate. (Philadelphaceae)
Philadelphaceae
1569:(A)
previous:1565
Petals apert, ligulate, fleshy. Fruit a capsule. China, Indo-China. (Mytilaria)
1569:(B)
Petals imbricate or apert. Fruit indehiscent.
next:1570
1570:(A)
previous:1569
Corolla contort. Connective usually with distinct apical appendages. Anthers basifix. Style-branches either shorter than the connate part of the style or stigmas 3, subsessile. Fruit dry, indehiscent, with 2 or 3 enlarged sepals. S.E. Asia. (Anisoptera)
1570:(B)
Corolla usually imbricate, rarely contort. Connective without appendages. Anthers dorsoversatile. Style-branches usually longer than the connate part of the style. Fruit a berry or a drupe. (Pomoideae)
1571:(A)
previous:1564
Aquatics. Ovules parietal. Fruit composed of berries. Embryo straight. Leaves all radical. (incl. Euryalaceae: Euryale)
Euryalaceae
1571:(B)
Terrestrials. Ovules basal, or parietal, or axillary. Fruit a capsule. Embryo curved. (Mesembryanthemum, Orygia)