J 96 ANALYSIS OF THE NATURAL ORDERS. 



4 Ovaries several, entirely distinct, cacli 1-stylcd, 1-ovuled. Oedes 1 



4 Ovary one, 1-ovuled, 1-seeded, style or stigma 1. (b) 



4 Ovary one, 1 — 3-ovuled, with 2 — 5-styles or stigmas. Qc) 



4 Ovary 1, with many ovules and 1 style or stigma, (d) 



4 Ovary one, with 4 — CO ovules and 2 — 12 6tyles and stigmas, (e) 



a Stamens 1 — 8, symmetrical with the stigmas. Ord. 63 



a Stamens 8 — 10, the stigmas 2. Ovary Co-seeded. Ord. 61 



a Stamens 6 or 12, symmetrical with the G ovary-cells. Aristolochiace^e. 100 



a Stamens 5, the stylo 1. Ovary 2-ovuled, 1-seeded. Santalace^e. 109 



b Flowers perfect. Calyx 4-lobed, stamens 1—4. Ord. 47 



b Flowers perfect. Calyx entire, funnel-shaped, colored.^ NYCTAGiNACEiE. 101 



b Flowers diclinous. Calyx 4 — 5-parted, green. Urticace^e. 115 



C Fruit S-seeded, with 3 (often cleft) stigmas. Euphorbiace^. 112 



C Fruit 1-seeded. — Stipules sheathing tho steins. 4 Polygoxace.e. 102 



— Stip. 0. Calyx scarious-bracted. Aiiarantace.e. 106 



— Stip. 0. Calyx double. Climbing- Basellace^e. 104 



— Stip. 0. Calyx naked. Lvs. alternate. CnExoPODiAC£.E. 105 



— Stip. 0. Calyx naked. Lvs. opposite. v §3, Ord. 21 



d Stamens (4) opposite the sepals. Ord. 51 



d Stamens (5) alternate with the sepals. Ord. 78 



e Leaves opposite. Fruit circumscissilc (utricle). Ord. 22 



e Leaves opposite. Fruit 4 — 5-valved (capsule). Ord. 21 



e Leaves alternate. — Fruit 5-horncd, o-cclled (crfpsule). Ord. 60 



— Fruit a fleshy 4 — 10-seeded berry. Piiytotaccaceje. 103 



— Fruit circumscissilc (utricle). Amaeantaczj;. 106 



f Flowers on a spadix with a spathe. Monocotyledons. Ord. 131 



f Flowers in a long naked spike. Stamens 6 or 7. Saurueaoe-e. 123 



f Flowers solitary, axillary, minute. Aquatic plants, (g) 



g Stamen 1, styles 2. Leaves opposite. Callitricaceji;. 124 



g Stamens 2, styles 2. Leaves alternate, dissected. Podostemiacejj. 125 



g Stamens 12 — 24, style 1. Lvs. verticillatc, dissected. Ceratopiitllacejj. 126 

 5 Flowers not in amenta, with the leaves opposite, (h) 

 5 Flowers not in aments, with tho leaves alternate, (k) 



5 Flowers (diclinous), the sterile only, in aments. (n) 



6 Flowers (diclinous), both the fertile and aterilo in aments. (o) 



h Fruit a double samara (2-winged). Ord. 40 



h Fruit a single samara (1-winged), or a drupe. Stamens 2. Oleacejs. 99 



h Fruit not winged, — 3-seeded. Stamens 4. Euphorbiace^:. 112 



• — 1-seeded. Stamens 4 or S. Eleagmace.e. Ill 



— 1-seeded. Stamens 3. Parasites. Loeanthacejs. 103 



k Style or stigma one. Fruit 1-seeded. (m) 



m Calyx free from the ovary. — Anthers opening by valves. Laurace^s. 107 



m Calyx free from the ovary. — Anthers opening by slits. Thymelace.e. 110 



m Calyx adherent to the ovary.— Ovules 2—4. (Shrubs.) Santalacea:. 109 



—Ovule 1. (Trees.) Ord. 63 



k Styles or stigmas 2. — Stamens numerous. Ord. 62 



— Stamens as many as the calyx lobes. Ulmace^s. 113 



k Styles or stigmas 3 (rarely 2 — 4). — Fruit dry, S-partible. Euphorbiace.e. 112 



— Fruit a fleshy drupe. Oe^,, 43 



k Styles or stigmas C — 9. Ileath-like undershrubs. Empetrace^e. 116 



k Styles and ovarie3 5, scarcely united. Leaves pinnate. Orp jV ?7 



n Nut or nuts in a cup or involucre. Leaves simple. CtrptrLiFERjE. i9 



n Nut drupaceous, naked. Leaves pinnate. JeglandacecE. 113 



o Fruit fleshy, aggregated (sorosis). Juice (or sap) milky. Artocabpace.<e. 114 

 o Fruit dry. Plants with a watery juico or sap. (p) 



