XXX INTRODUCTION'. 



Ovary solitary, 1-celleJ. 



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



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

 Placentas parietal. 



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



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



Juice watery. Placental. 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. M.VLVACEjE, 52 



Stamens united in a ring. Sepals imbricated. CAMEl^IACE^E, 60 

 Stamens free from the petals. 



Stamens united into a tube. Sepals persistent. CLUSIACE.3;, 42 



Stamens united in clusters. Sepals deciduous. TI LI ACER'S, 59 



Stamens separate. Ovary 5-celled. Leaves tubular. SARRACENIACE^, 20 



Ovary many-celled. Leaves flat. NYMPILEACE.i;, 19 



■I- t- Stamens tivice as many as the petals. 

 Ovaries more than one. 



Flowers dioecious. Fruit a drupe. Trees, with pinnate leaves. GIMARUBACE35, 6V 

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



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

 Ovary solitary, Icelled. 



Leaves alternate. Fruit a legume. Leaves stipulate. LEGL JIIN0S..5!, 86 

 Leaves opposite. 



Fruit a capsule, with parietal placentae. Leaves entire, dotted IIYPERICACE.^;, 38 

 Fruit a capsule, with a free central placenta. Leaves dotless. CARY0PHYLLACEJ2, 45 



Fruit a drupe. Shrubs, with trifoliolate dotted leaves. BUKSEHACE^, 67 



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

 Ovary solitary, 2-celled 



Flowers irregular : stamens monadelphous. Capsule 2-seeded. POLY'GALACE.a;, 82 



Flowers regular : stamens separate. Capsule long, many-seeded. TILIACE^E, 59 

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



Flowers monoecious. Fruit 3-seeded, 3-valved. Stamens united. EUPHORBIACE^, 399 



Flowers perfect. Fruit 3-seeded, 3-winged, indehiscent. CY'KILLACEJ;, 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.S;, 258 



A shrub, with alternate leaves and bractless flowers. CYRILLACE^, 272 



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

 Ovary solitary 5-celled. Stamens 10. 



Style ...ingle. Stamens monadelphous. Leaves alternate, pinnate. CEDRELACE^. 62 



Stamens separate. Leaves opposite, pinnate. ZY^GOPHY^LLACE.^;, 63 



Stamens separate. Leaves alternate, simple. PY'ROLE.S;, 268 



Styles 5 Cells of the fruit separating into l-.«eeded nutlets. GERANIACE^, 64 



Cells ofthc fruit united. Leaves trifoliolate. 0XAL1DACE.5;, 63 



Ovary solitary, 7-celled. Anthers opening by terminal pores. ERICACE^, 25i 



Ovary solitary, 10 - 12-celled. Leaves opposite, abruptly pinnate. ZYGOPIIYLLACE-E, 63 



^_ 4_ ^_ Slaynens 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. FUMARIACE^, 22 



Sepals 4. Flowers regular. Embryo large. Albumen none. CAPPARIDACB.5:, 31 



Ovary 2-celled. 



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



Petals 4. Stamens 6. Fruit a silique or silicle. CRUCIFER.i5), 23 



