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Pistils numerous but cohering over each other in a solid mass on an elongated receptacle. Magnoliace?, 49
Pistils numerous, separate, but concealed in a hollow receptacle.
Leaves opposite, entire; no stipules. Calycanthace?, 167
Leaves alternate, with stipules. Rosa, in Rosace?, 162
Pistils several, immersed in hollows of the upper surface of a large top-shaped receptacle. Nelumbo, in Nymph?ace?, 55
Pistils more than one, separate, not enclosed in the receptacle.
Stamens inserted on the calyx, distinct. Rosace?, 150
Stamens united with the base of the petals, monadelphous. Malvace?, 96
Stamens inserted on the receptacle.
Filaments much shorter than the anther; trees. Anonace?, 50
Filaments longer than the anther.
Flowers di?cious; twiners with alternate leaves. Menispermace?, 51
Flowers perfect; if climbers, the leaves opposite.
Leaves not peltate; petals deciduous. Ranunculace?, 34
Leaves peltate; petals persistent. Brasenia, in Nymph?ace?, 55
Pistils several-lobed, the ovaries united below the middle. Resedace?, 75
Pistils several, their ovaries cohering in a ring around an axis. Malvace?, 96
Pistils strictly one as to the ovary; the styles or stigmas may be several.
Leaves punctate under a lens with transparent dots. Hypericace?, 92
Leaves not punctate with transparent dots.
Ovary simple, 1-celled, 2-ovuled. Rosace?, 150
Ovary simple, 1-celled, with one parietal many-ovuled placenta.
Leaves 2–3-ternately compound or dissected. Ranunculace?, 34
Leaves peltate, simply lobed. Podophyllum, in Berberidace?, 52
Ovary compound, 1-celled, with a central placenta. Portulacace?, 90
Ovary compound, 1-celled, with two or more parietal placent?.
Calyx caducous; juice milky or colored. Papaverace?, 57
Calyx deciduous, of 4 sepals. Capparidace?, 74
Calyx persistent, of 3 or 5 sepals. Cistace?, 76
Ovary compound, several-celled.
Calyx valvate in the bud, and
Persistent; stamens monadelphous; anthers 1-celled. Malvace?, 96
Deciduous; anthers 2-celled. Tiliace?, 101
Calyx imbricated in the bud, persistent.
Shrubs; stamens on the base of the petals. Ternstr?miace?, 95
Aquatic or marsh herbs; ovaries many,
On 5 placent? in the axis. Sarraceniace?, 57
On the 8–30 partitions. Nymph?ace?, 54