KEY TO THE FAMILIES. 17. 



143. Sepals 2, leaves alternate. 44 PORTULACACEAE. 

 Sepals 4—5. Leaves opposite. 45 CARYOPHYLLACEAE. 



144. (138) Ovules attached to 1 placenta. 69 LEGUMINOSAE. 

 Ovules attached to 2 or more placentas. I45. 



145. Herbs with glandular hairs and leaves in rosettes. 



Insectivorous. (Drosera). 57 DROSERACEAE. 



Not insectivorous herbs with glandular hairs. I46. 



146. Herbs or undershrubs with irregular flowers in spikes or 



racemes. Alternate stipulate leaves and ovary open at 



the top. (Oligomeris). 56 RESEDACEAE. 



Ovary not open at top, etc. I47. 



147. Sepals 2 (rarely 3). Petals 4 (rarely 6). Herbs. 



53 PAPAVERACEAE. 

 If sepals 2 or 3 and petals 4 or 6 then stem woody. I48. 



148. Fertile stamens as many as petals or fewer. I49. 



Fertile stamens more than petals. 153. 



149. Fertile stamens 2, 4 or 6. Flowers hermaphrodite. 



55 CAPPARIDACEAE. 

 Fertile stamens 5, or if 4 or 6, flowers unisexual. 150. 



150. Sepals 3 united. Petals 3 or climbing plants with unisexual 



flowers. 101 PASSIFLORACEAE. 



Sepals free or nearly so, or not 3, or not climbing plants. 151. 



151. Staminodes present. Anthers opening by pores. (Ochna). 



97 OCHNACEAE. 

 Staminodes wanting. 152. 



152. Leaves stipulate. Flowers more or less irregular. Placentas 



3. 99 VIOLACEAE. 



Leaves exstipulate. Flowers regular. Tree. (Pittosporum). 



62 PITTOSPORACEAE. 



153. Leaves usually pinnate. Filaments united throughout their 



whole length. 77 MELIACEAE. 



Leaves simple or digitate. Filaments free or united in 



bundles, or at the base only. I54. 



154. Filaments united in 3 — 5 bundles. Leaves opposite undivided 



exstipulate. 98 GUTTIFERAE. 



Filaments free or united at the base only. 155. 



155. Sepals 4 or ovary long stalked. 55 CAPPARIDACEAE. 

 Sepals not 4 or ovary sessile. 100 FLACOURTIACEAE. 



156. (II4) Ovule 1 in each ovary cell. 157. 

 Ovules 2 or more in each ovary cell. 180. 



157. Ovules erect or ascending. 158. 

 Ovules pendulous, descending or horizontal. 167. 



158. Disc outside the stamens, sometimes one-sided or broken up 



into several glands. Leaves alternate compound, or if 



simple, then stamens 8 — 10. 159. 



Disc or glands within or between the stamens or wanting, 



