20 



Leaves opposite. CUNONIACE.S. p. 131. 

 Leaves alternate. SAXIFRAQACE^. p. 131. 



37. Sepals imbricate in the bud. 38 

 Sepals valvate in the bud. 



Stamens opposite the petals, and of the same number. 



RHAMNACE.E. p. 86. 



Stamens alternate with the petals. Resinous trees or shrubs of 

 tropical America. AMYRIDACE^E. 



38, Flowers irregular. Trees or shrubs of tropical South America. 



VOCHYSIACE.E. 

 Flowers regular. 



Leaves simple, alternate. Australian herbs. STACKHOUSIACEJJ. 

 Leaves compound, mostly opposite. Trees or shrubs. 



STAPHYL^ACEJE. p. 89. 



39. Leaves with stipules. 44 

 Leaves without stipules. 



Placentas parietal. Fruit a juicy berry. GROSSULARIACE^:. p. 133. 

 Placentae in the axis. 



Flowers not in umbels. 40 

 Flowers in umbels. 



Styles two. Carpels separating when ripe. Flowers arranged in 



flat-topped umbels. UMBELLIFER^. p. 162. 

 Styles commonly more than two. Carpels not separating when 



ripe. Umbels not flat topped. ARALIACE^E. p. 166. 



40. With more than one carpel to each flower. 41 

 With only one carpel to each flower. 



Plants mostly parasitic. Fruit a berry, which is usually one seeded. 



LORANTIIACE-E. p. 292. 



Not parasitic. 



