xxxii 



INTRODUCTION. 



Stamens separate, alternate with the petals. 

 Herbs. Leaves alternate Calyx deciduous. Capsule 1-celled. 



Leaves opposite. Calyx persistent. Capsule 2 - 4-celled. 

 Trees or shrubs'. 



Fruit a double samara. Leaves opposite. Styles 2. 

 Fruit a drupe. Ovary 1-celled. Albumen none. 



Ovary 2-5-celled. Seeds with albumen. ) 

 Fruit a capsule. Capsule fleshy. Seeds arilled. 



Capsule 3-celled, inflated. Leaves trifoliolate. 

 Capsule 2-celled, 2-beaked Leaves simple. 



TURNERACE.E, 146 

 LYTHRACE^l, 133 



ACERACE.E, 80 

 ANACARDIACE^E, 68 



CELASTRACE.E, 75 



STAPHYLEACE.E, 77 

 ESCALLONIE.E. 151 



numerous than the petals. 



Ovaries more than one. 

 Leaves alternate, stipulate. 

 Leaves alternate, exstipulate. Succulent herbs. 

 Leaves opposite, exstipulate. Sepals and petals numerous. 

 Ovary solitary, 1-celled. 

 Fruit a drupe. Style arising from the base of the ovary. 



Style terminal. Ovules pendulous. 

 Fruit a legume. Flowers mostly irregular. 

 Ovary solitary, 2 - 5-celled. 

 Style single. Leaves simple, opposite or whorled. 



Leaves compound, dotted. Petals valvate. 

 Leaves compound, dotless. Petals imbricated. 

 Styles 2. Leaves alternate. Fruit a capsule. 



Leaves opposite. Fruit a double samara. 

 Styles 2-3, each 2 - 3-parted. Capsule 2 - 3-celled. 

 Styles 3, entire. Petals clawed. Fruit a drupe. 



f- -i- Calyx adherent to the ovary. 

 Herbs. 



Ovary 1-celled. Capsule and 2-lobed calyx circumscissile. PORTULACACE^E, 43 



Capsule 3-valved. Calyx 5-parted. Leaves rough. LOASACE^E, 146 



Ovary 2 - 6-celled. 

 Style single. Anthers opening by a terminal pore. Leaves ribbed. MELASTOMACEJE, 131 



ROSACEJE, 117 



CRASSULACE^, 149 



CALYCANTIIAOE^E, 129 



CHRYSOBALANE.X, 118 

 AMYGDALE.E, 118 

 LEGUMINOS^E, 86 



LYTIIRACE.E, ia3 



BURSERACE-S:, 67 



SAPINDACE.E, 78 



SAXIFRAGACE.E, 151 



ACERACEJE, 80 



EUPHORBIACEjE, 399 



MALPIGHIACEJE, 81 



Anthers opening lengthwise. Leaves ribless. 

 Styles or stigmas 2 or more. 

 Flowers umbelled. Fruit dry, separating into 2 pieces. 



Fruit berry-like, of 2 - 5 nutlets. 

 Flowers not umbelled. 



Flowers perfect. Fruit capsular. Leaves alternate. 

 Flowers monoecious. Fruit nut-like. Leaves whorled. 

 Shrubs or trees. 

 Leaves opposite. 



Fruit dry. variously dehiscent, many-seeded. 

 Fruit indehiscent, 1 - 2-seeded. 

 Stipules between the petioles. 

 Stipules none. Leaves dotted. Stamens numerous. 



Leaves dotless. Stamens 4. Ovary 2-celled. 

 Leaves dotless. Stamens 10. Ovary 1-celled. 

 Leaves alternate. 



Flowers umbelled. Leaves compound. 

 Flowers not umbelled. 

 Leaves stipulate. Fruit fleshy or baccate, indehiscent. 



Fruit dry, woody, 2-valved. 

 Leaves exstipulate. 

 Flowers dioecious. Drupe baccate. Sterile flowers apetalous. 



ONAGRACE^, 137 



UMBELLIFER.^, 157 

 ARALIACEJE, 166 



SAXIFRAGACE3I, 151 

 HALORAGE.E, 137 



HYDRANGEA, 151 



RHIZOPHORACE/E, 135 

 MYRTACE^l, 130 

 CORNACE.E, 167 

 COMBRETACE^E, 136 



ARALIACE.E, 166 



POME.E. 118 

 HAMAMELACE.*:, 156 



CORNACE.E, 167 



