The Manual of the Botany of the Northern United States. Asa Gray
href="#ulink_14dd7c27-c80c-598d-aaa1-2cd20968b9f1">Podophyllum, in Berberidaceæ, 52
Ovary compound, 1-celled, with a central placenta. Portulacaceæ, 90
Ovary compound, 1-celled, with two or more parietal placentæ.
Calyx caducous; juice milky or colored. Papaveraceæ, 57
Calyx deciduous, of 4 sepals. Capparidaceæ, 74
Calyx persistent, of 3 or 5 sepals. Cistaceæ, 76
Ovary compound, several-celled.
Calyx valvate in the bud, and
Persistent; stamens monadelphous; anthers 1-celled. Malvaceæ, 96
Deciduous; anthers 2-celled. Tiliaceæ, 101
Calyx imbricated in the bud, persistent.
Shrubs; stamens on the base of the petals. Ternstrœmiaceæ, 95
Aquatic or marsh herbs; ovaries many,
On 5 placentæ in the axis. Sarraceniaceæ, 57
On the 8–30 partitions. Nymphæaceæ, 54
2. Calyx more or less coherent with the surface of the (compound) ovary.
Ovary 8–30-celled; ovules many, on the partitions; aquatic. Nymphæaceæ, 54
Ovary 10-celled; cells 1-ovuled. Amelanchier, in Rosaceæ, 166
Ovary 2–5-celled.
Leaves alternate, with stipules. Pomeæ, in Rosaceæ, 151
Leaves opposite, without stipules. Some Saxifragaceæ, 168
Leaves alternate, without stipules. Styracaceæ, 333
Ovary 1-celled, with the ovules parietal.
Fleshy plants with no true foliage; petals many. Cactaceæ, 186
Rough-leaved plants; petals 5 or 10. Loasaceæ, 193
Ovary one-celled, with the ovules rising from the base. Portulacaceæ, 90
B. Stamens of the same number as the petals and opposite them.
Pistils 3–6, separate; flowers diœcious; woody vines. Menispermaceæ, 51
Pistil only one.
Ovary one-celled; anthers opening by uplifted valves. Berberidaceæ, 52
Ovary one-celled; anthers not opening by uplifted valves.
Style and stigma one; ovules more than one. Primulaceæ, 328
Style 1; stigmas 3; sepals 2; ovules several. Portulacaceæ, 90
Style twice or thrice forked; flowers monœcious. Crotonopsis, in Euphorbiaceæ, 458
Styles 5; ovule and seed only one. Plumbaginaceæ, 327
Ovary 2–4-celled.
Calyx-lobes minute or obsolete; petals valvate. Vitaceæ, 112
Calyx 4–5-cleft, valvate in the bud; petals involute. Rhamnaceæ, 111
C. Stamens not more than twice as many as the petals, when of just the number of the petals then alternate with them.
1. Calyx free from the ovary, i.e. the ovary wholly superior.
[*] Ovaries 2 or more, separate.
Stamens united with each other and with a large and thick stigma common to the two ovaries. Asclepiadaceæ, 338
Stamens unconnected, on the receptacle, free from the calyx.
Leaves punctate with pellucid dots. Rutaceæ, 106
Leaves not pellucid-punctate.
Tree, with pinnate leaves. Ailanthus, in Simarubaceæ, 107
Low shrub, with pinnate leaves. Xanthorrhiza, in Ranunculaceæ, 48
Herbs, not fleshy. Ranunculaceæ, 34
Herbs, with thick fleshy leaves. Crassulaceæ, 176
Stamens unconnected, inserted on the calyx.
Just twice as many as the pistils (flower