19 



31.~ Styles partly or wholly united. 32 

 Styles distinct to the base. 



Carpels each with a scale beneath. CRASSULACE^E. p. 137. 

 Carpels two without hypogynous scales. SAXIFRAGACE&. p. 131. 



32. Sepals imbricate in the bud. 33 



Sepals valvate in the bud. 



Stamens as many as the petals, and opposite to them. 



RlIAMNACE^E. p. 86. 



Stamens alternate with the petals. LYTHRACE^E. p. 149. 



33. Sepals two. Mostly thick-leaved plants. PORTULACACE.E. p. 69. 



Sepals more than two. 



Stigmas two to five lobed. Ovules erect or slanting upwards. 



CELASTRACE^:. p. 87. 



Stigmas minute. Ovules hanging down. Natives of southern 

 Africa. 



34. Ovary consisting of two or more carpels united. 35 



Ovary or ovaries simple. 



Fruit a pod. Odd sepal inferior, or on the outer side. Flowers 



commonly irregular. LEGUMINOS^E. p. 94. 

 Fruit not a pod. Odd sepal on the superior or inner side. Flow- 



ers regular or nearly so. ROSACES, p. 115. 



35. Placentae in the axis. 36 



Placentae parietal. 



Flowers witH a supernumerary fringe of abortive petals, or with 



several inner fringes. PASSIFLORACE^;. p. 157. 

 Flowers without a supernumerary fringe. MORINGACE.-K 



36. Styles partly or wholly united. 37 



Styles distinct to the base. 



Petals minute. Ovary one celled, containing a single ovule. 



ILLECEBUAOE^J. 



Petals conspicuous. Ovary usually with more than one cell, but if 

 one celled, with more than one ovule. 



