16 



Anthers with longitudinal valves. 



Btjle from the base of carpel, Cfirysoba/anenf. 



Style from the apex of carpel. Fruit a pod Leguminonae. 



Style from the apex of carpel. Fruit a drupe or oap^yje Bosaeeae. 



% X Carpels wholly combined ; with more placentas than one. 

 Placentas parietal. 



Flowers with a ring of appendages, Pasnijforeae' 



Flowers without any ring of appendages. 



Leaves with round and oblong transparent dots Samydeae. 



Leaves dotless, circinnate when young, Droseraceae. 



Leaves dotless, straight when young. Fruit capsular, Violarieae. 



Leaves dotless, straight when young. Fruit siliquose, Monngaceae. 



Placentas in the axis. 



Styles distinct to the base. 



Calyx in a broken whorl, much imbricated, Elatineae. 



Calyx but little imbricated, in a complete whorl. 



Flowers unisexual, ,,, , Euphorbiaceae. 



Flowers hermaphrodite or polygamous. 



Petals conspicuous. Stamens hypogynous, Malpighiaceae. 



Petals conspicuous. Stamens perigyuous, Saxifragcae. 



Calyx valvate, Tiliaceae. 



Styles more or less combined. Gynobasic. 



Gynobase fleshy, Ochnaceae. 



Gynobase dry. Leaves regularly opposite Zygophylkae. 



Gynobase dry. Leaves more or less alternate. 



Fruit beaked, , Geraniaceae. 



Fruit not beaked, , Geraniaceae {Oxalideae). 



Styles more or less combined. Not gynobasic. 



Calyx much imbricated, in a broken whorl, , Sapindaceae, 



Calyx but little imbricated, in a complete whorl. 



Leaves simple. Sepals more than 2, , Malpighiaceae. 



Leaves simple. Sepals only 2, Fortulacaceae. 



Calyx valvate or open. 



Stamens columnar , Sterculiaceae, 



Stamens not columnar. 



Stamens opposite to the petals if equaUto them in number. 



Perigynous, , , Rhamnaceae. 



Hypogynous, Awpeiideae. 



Stamens alternate with petals if equal to them in number. 



Anthers opening by pores, Tiliaceae. 



Anthers opening by slits. Petals split, ChaiUetiaceue. 



Anthers opening by slits. Petals entire, Burseraceae, 



Leaves destitute of stipules. 



X Carpels more, or less distinct or solitary. 



Anthers with recurved valves ,Berberidene. 



Anthers with longitudinal valves. 



Fruit a pod. Radicle next hilum, i Leguminosae. 



Fruit a pod. Eadiele remote from hilum, Connaraceae. 



Fruit not a pod. 



Carpels each with an hypogynous scale, Crassulaceae. 



Carpels without hypogynous scales. 



Albumen very abundant. Embryo minute. 



Herbs. Albumen solid Ranunculaceae., 



Shrubs or trees. Albumen ruminate, Anonaceae. 



Albumen in small quantity or wholly wanting. 



Carpels several, all perfect. Flowers unisexual, Menispermaceae. 



Carpels solitary, or all but one imperfect. 



Leaves dotted, Burseraceae. 



Leaves dotless ^ Anacardiaceae. 



X X Carpels combined into a solid pistil. 

 Placentas parietal. 



Stamens tetradynamous, Critciferae. 



Stamens not tetradynamous. 



Flowers with a ring or crown of sterile stamens. 

 Sexes distinct. 



Female flowers with a crown Bixineae (Pangiaccae) ^ 



