Page 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

[*] Ovaries 2 or more, separate. Stamens united with each other and with a large and thick stigma common to the two ovaries. Asclepiadace?, 338 Stamens unconnected, on the receptacle, free from the calyx. Leaves punctate with pellucid dots. Rutace?, 106 Leaves not pellucid-punctate. Tree, with pinnate leaves. Ailanthus, in Simarubace?, 107 Low shrub, with pinnate leaves. Xanthorrhiza, in Ranunculace?, 48 Herbs, not fleshy. Ranunculace?, 34 Herbs, with thick fleshy leaves. Crassulace?, 176 Stamens unconnected, inserted on the calyx. Just twice as many as the pistils (flower symmetrical). Crassulace?, 176 Not just the number or twice the number of the pistils. Leaves without stipules. Saxifragace?, 168 Leaves with stipules. Rosace?, 150 [*][*] Ovaries 2–5, somewhat united at the base, separate above. Leaves punctate with pellucid dots. Rutace?, 106 Leaves not pellucid-punctate. Shrubs or trees with opposite leaves. Sapindace?, 115 Terrestrial herbs; the carpels fewer than the petals. Saxifragace?, 168 [*][*][*] Ovaries or lobes of ovary 3 to 5, with a common style. Geraniace?, 102 [*][*][*][*] Ovary only one, and [+] Simple, with one parietal placenta. Leguminos?, 122 [+][+] Compound, as shown by the number of cells, placent?, styles, or stigmas. Ovary one-celled. Corolla irregular; petals 4; stamens 6. Fumariace?, 59 Corolla irregular; petals and stamens 5. Violace?, 78 Corolla regular or nearly so. Ovule solitary; shrubs or trees; stigmas 3. Anacardiace?, 118 Ovules solitary or few; herbs. Some anomalous Crucifer?, 61 Ovules more than one, in the centre or bottom of the cell. Petals not inserted on the calyx. Caryophyllace?, 82 Petals on the throat of a bell-shaped or tubular calyx. Lythrace?, 184 Ovules several or many, on two or more parietal placent?. Leaves punctate with pellucid and dark dots. Hypericace?, 92 Leaves beset with reddish gland-tipped bristles. Droserace?, 178 Leaves neither punctate nor bristly-glandular. Sepals 5, very unequal or only 3. Cistace?, 76 Sepals and petals 4; stamens 6. Anomalous Crucifer?, 61 Sepals and petals 5; stamens 5 or 10. Ovary and stamens raised on a stalk. Passiflorace?, 194 Ovary sessile. Saxifragace?, 168 Ovary 2–several-celled. Flowers irregular. Anthers opening at the top, Six or eight and 1-celled; ovary 2-celled, 2-ovuled. Polygalace?, 120 Ten and 2-celled; ovary 5-celled. Rhododendron, in Ericace?, 286 Anthers opening lengthwise. Stamens 12 and petals 6 on the throat of a tubular inflated or gibbous calyx. Cuphea, in Lythrace?, 186 Stamens 5–8 or 10, and petals hypogynous, or nearly so. Ovary 3-celled. Sapindace?, 115 Ovary 5-celled. Impatiens, &c., in Geraniace?, 105 Flowers regular or nearly so. Stamens neither just as many nor twice as many as the petals, Triadelphous; petals 5. Hypericace?, 92 Tetradynamous (or rarely only 2 or 4); petals 4; pungent herbs. Crucifer?, 61 Distinct and fewer than the 4 petals. Oleace?, 335 Distinct and more numerous than the petals. Sapindace?, 115 Stamens just as many or twice as many as the petals. Ovules and seeds only 1 or 2 in each cell. Herbs; flowers mon?cious or di?cious. Euphorbiace?, 451 Herbs; flowers perfect and symmetrical. Cells of the ovary as many as the sepals, &c. Geraniace?, 102 Cells of the (divided) ovary twice as many as the styles, sepals, &c. Linace?, 101 Shrubs or trees. Leaves 3-foliolate, pellucid-punctate. Ptelea, in Rutace?, 107 Leaves palmately veined and fruit 2-winged, or pinnate and fruit a berry. Sapindace?, 115 Leaves pinnately veined, simple, not punctate. Calyx not minute; pod colored, dehiscent; seeds enclosed in a pulpy aril. Celastrace?, 109 Calyx minute; fruit a berry-like drupe. Ilicine?, 107 Ovules (and usually seeds) several or many in each cell. Stipules between the opposite and simple leaves. Elatinace?, 91 Stipules between the opposite and compound leaves (but they are caducous). Staphylea, in Sapindace?, 118 Stipules none when the leaves are opposite. Stamens 5, monadelphous in a 10-toothed tube or cup; leaves simple, all radical. Galax, in Diapensiace?, 326 Stamens 10, monadelphous at the base. Leaflets 3, inversely heart-shaped. Oxalis, in Geraniace?, 105 Stamens distinct, free from the calyx. Style 1, undivided. Ericace?, 303 Styles 2–5, separate. Caryophyllace?, 82 Stamens distinct, inserted on the calyx. Styles 2 (or 3), or splitting into 2 in fruit. Saxifragace?, 168 Style 1; pod in the calyx, 1-celled. Lythrace?, 184

Tendril-bearing herbs; anthers often united. Cucurbitace?, 194 Tendrils none. Stamens united by their anthers into a ring or tube. Flowers in an involucrate head. Composit?, 230 Flowers separate, not involucrate; corolla irregular. Lobeliace?, 305 Stamens separate, free from the corolla or nearly so, as many as its lobes; stipules none; juice milky. Campanulace?, 307 Stamens separate, inserted on the corolla, One to three, always fewer than the corolla-lobes. Valerianace?, 228 Four or five; leaves opposite or whorled. Ovary 1-celled; flowers in a dense involucrate head. Dipsace?, 229 Ovary 2–5-celled. Leaves whorled and without stipules. Rubiace?, 222 Leaves opposite or whorled, and with stipules. Rubiace?, 222 Leaves opposite without stipules (petioles sometimes with stipule-like appendages). Caprifoliace?, 216