ANALYTICAL KEY. 21 



Leaves not pellucid-punctate. 



Tree, with pinnate leaves. . . Ailanthus, in SIMARUBACEJE, 107 



Low shrub, with pinnate leaves. Xanthorrhiza, in RANUNCULACE^E, 48 



Herbs, not fleshy RANUNCULACE.E, 34 



Herbs, with thick fleshy leaves CRASSULACE^E, 176 



Stamens unconnected, inserted on the calyx. 



Just twice as many as the pistils (flower symmetrical). CRASSULACE^E, 176 



Not just the number or twice the number of the pistils. 



Leaves without stipules SAXIFRAGACE^E, 168 



Leaves with stipules ROSACE^E, 150 



* # Ovaries 2-5, somewhat united at the base, separate above. 



Leaves punctate with pellucid dots BUTACEJE, 106 



Leaves not pellucid-punctate. 



Shrubs or trees with opposite leaves. ... SAPINDACE^E, 115 

 Terrestrial herbs; the carpels fewer than the petals. SAXIFRAGACEJE, 168 



*^ * Ovaries or lobes of ovary 3 to 5, with a common style. GERANIACE^E, 102 



# # * # Ovary only one, and 



H~ Simple, with one parietal placenta. LEGUMINOS^E, 122 

 H- 4- Compound, as shown by the number of cells, placentas, styles, or stigmas. 

 Ovary one-celled. 



Corolla irregular ; petals 4 ; stamens 6. . . . FUMARIACE^E, 59 



Corolla irregular ; petals and stamens 5 VIOLACE^E, 78 



Corolla regular or nearly so. 



Ovule solitary; shrubs or trees; stigmas 3. ANACARDIACE^E, 118 



Ovules solitary or few ; herbs. . . Some anomalous CRUCIFER^E, 61 

 Ovules more than one, in the centre or bottom of the cell. 

 Petals not inserted on the calyx. . . . CARYOPHYLLACE^E, 82 

 Petals on the throat of a bell-shaped or tubular calyx. LYTHRACE^J, 184 

 Ovules several or many, on two or more parietal placentae. 

 Leaves punctate with pellucid and dark dots. HYPERICACEJE, 92 



Leaves beset with reddish gland-tipped bristles. DROSERACE.E, 178 

 Leaves neither punctate nor bristly-glandular. 



Sepals 5, very unequal or only 3. ... CISTACE^E, 76 



Sepals and petals 4 ; stamens 6. . . Anomalous CRUCIFER^E, 61 

 Sepals and petals 5 ; stamens 5 or 10. 



Ovary and stamens raised on a stalk. PASSIFLORACE^E, 194 



Ovary sessile SAXIFRAGACEJE, 168 



Ovary 2 - several-celled. 

 Flowers irregular. 



Anthers opening at the top, 



Six or eight and 1 -celled ; ovary 2-celled, 2-ovuled. POLYGALACE.E, 120 

 Ten and 2-celled ; ovary 5-celled. Rhododendron, in ERICACE^J, 286 

 Anthers opening lengthwise. 



Stamens 12 and petals 6 on the throat of a tubular inflated 



or gibbous calyx. . . . Cuphea, in LYTHRACE/E, 186 



