xxxu 



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, i 

 Fruit a capsule. Capsule fleshy. Seeds arilled. ) 



Capsule 3-celled, inflated. Leaves trifoliolate. 

 Capsule 2-celled, 2-beaked Leaves simple. 



TrrRNERACE.E, 146 

 LYTHRACE^E, 133 



AOERACE^, 80 

 ANACARDIACE^, 68 



CELASTRACE^, 75 



STAPHYLEACE>E, 77 

 ESCALLONIE^, 151 



petals. 



•H- *+ Stamens more numerous than the 

 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 ba.'Je 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. 



I.eaves opposite. Fruit a double samara. 

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

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



4- ^- Calyx adherent to the ovary. 



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



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



Ovary 2-6-cened. 

 Style single. Anthers opening by a terminal pore. Leaves ribbed. MELAST0MACE.3:, 131 



ROSACEvE, 117 



CRASSULACE^, 149 



CALYCANTHACE^, 129 



CHRTSOBALANE^, 118 

 AMYGDALE^, 118 

 LEGUMINOS^, 86 



LYTHRACE^, 133 



BURSERACE.a;, 67 



SAPINDACE.^, 78 



SAXIFRAGACEJE, 151 



ACERACE^, 80 



EUPHORBIACE^, 399 



MALPIGHIACE.aE, 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. 

 Leaves dotless. 

 Leaves dotless. 

 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 



Stamens numerous. 

 Stamens 4. Ovary 2-celled. 

 Stamens 10. Ovary l-celled. 



ONAGRACE^, 137 



UMBELLIFER^, 157 

 ARALIACE.a;, 166 



SAXIFRAGACE^, 151 

 HALORAGE^, 137 



HYDRANGEA, 151 



RHIZOPHORACE.<E, 185 



MYRTACEiE, 130 



C0IINACE;e, 167 



C0MBRETACE.5:, 136 



ARALIACE^, 166 



POxMEiE, 118 

 HAMAMELACE^, 156 



CORNACE.I:, 167 



