XXX INTRODUCTION. 



Oyary solitary, 1-celled. 



Placenta central. Sepals 2, deciduous. Anthers introrse. PORTULACACKcE, 43 



Sepals 5, persistent. Anthers extrorse. DROSERACE^, 36 

 Placentae parietal. 



Calyx persistent. Capsule' 3-valved: placentae 3. CISTACE., 35 



Calyx deciduous. Juice colored. Leaves simple, lobed. PAPAVERACE.E, 21 



Juice watery. Placenta 1. Leaves 2 - 3-ternate. CIMICIFUGE.^, 2 

 Juice watery. Placentae 2. Leaves simple or trifoliolate. CAPPARIDACE.E, 31 

 Ovary solitary, 2 - many-celled. 

 Stamens connected with the base of the petals. 



Stamens united in a column. Sepals valvate. MALVACEAE, 52 



Stamens united in a ring. Sepals imbricated. CAMELLIACE.E, 60 



Stamens free from the petals. 



Stamens united into a tube. Sepals persistent. CLUSIACEjE, 



Stamens united in clusters. Sepals deciduous. TILIACEJE, 



Stamens separate. Ovary 6-celled. Leaves tubular. SARRACENIACE.E, 



Ovary many-celled. Leaves flat. NYMP1LEACE.E, 



- -t- Stamens twice as many as the petals. 

 Ovaries more than one. 



Flowers dioecious. Fruit a drupe. Trees, with pinnate leaves. SIMARUBACE^E, 67 

 Flowers perfect. Fruit dry, indehiscent, 1-3-seeded. Aquatic herbs. CABOMBACE.E, 18 



Fruit a many-seeded follicle. Fleshy herbs. CRASSULACE.E 149 

 Ovary solitary, 1-celled. 



Leaves alternate. Fruit a legume. Leaves stipulate. LEGUM1XOS.E, S'5 

 Leaves opposite. 



Fruit a capsule, with parietal placentas. Leaves entire, dotted. HYPERICACE^, 38 

 Fruit a capsule, with a free central placenta. Leaves dotless. CARYOPHYLLACE^, 45 



Fruit a drupe. Shrubs, with trifoliolate dotted leaves. BUR3ERACE.ZE, 67 



Fruit a berry. Herbs, with two peltate lobed leaves. BERBERIDACE^E, 16 

 Ovary solitary, 2-celled. 



Flowers irregular : stamens monadelphous. Capsule 2-seeded. POLYGALACE.^, 82 



Flowers regular : stamens separate. Capsule long, many-seeded. TILIACE.E, :>'. 

 Ovary solitary, 3-celled. Shrubs, with alternate leaves. 



Flowers monoscious. Fruit 3-seeded, 3-valved. Stamens united. EUPHORBIACE.E, 399 



Flowers perfect. Fruit 3-seeded, 3-winged, indehiscent. CYRILLACEJE, 272 



Fruit many-seeded, 3-valved. ERICACEAE, 257 

 Ovary solitary, 4-celled. Stamens 8. 



Style single. Low fleshy root-parasites, with scale-like leaves. MONOTROPE^E, 258 



A shrub, with alternate leaves and bractless flowers. CYRILLACKE, 272 



Styles 4. Flowers cymose. Capsule 4-lobed, spreading. CRASSULACE-E, 149 

 Ovary solitary, 5-celled. Stamens 10. 



Style single. Stamens monadelphous. Leaves alternate, pinnate. CEDRELACtLE, 62 



Stamens separate. Leaves opposite, pinnate. ZYGOPHYLLACKE, 63 



Stamens separate. Leaves alternate, simple. PYROLE^, 258 



Styles 6. Cells of the fruit separating into 1-seeded nutlets. GERANIACE^, 64 



Cells of the fruit united. Leaves trifoliolate. OXALIDACKE, 63 



Ovary solitary, 7-celled. Anthers opening by terminal pores. ERICACE/E. 257 



Ovary solitary, 10 - 12-celled. Leaves opposite, abruptly pinnate. ZYGOPHYLLACE^, 63 



i- H- -i- Stamens exceeding the petals in number, but not twice as many. 

 Ovary 1-celled. Petals 4 : stamens 6. 



Sepals 2. Flowers irregular. Embryo minute in fleshy albumen. FUMARIACEtf!, 22 



Sepals 4. Flowers regular. Embryo large. Albumen none. CAPPARIDACE^, 31 

 Ovary 2-celled. 



Petals 3. Stamens 8, monadelphous. Anthers 1-celled. POLYGALACE^, 82 



Petals 4. Stamens 6. Fruit a silique or silicle. CRUCIFER^, 23 



