45 



98t Ovary two celled. Styles two. Fruit a winged samara. Trees 



or shrubs. ULMACE^E. p. 296. 

 Ovary three celled. Stamens four or five. RHAMNACK^E. p. 86. 



99. Leaves without stipules. 101 

 Leaves with stipules. 



Flowers perfect, having both stamens and pistils. 100 

 Flowers imperfect. 



Trees or shrubs with a milky juice. Ovary single, with one ovule. 



Stamens few. ARTOCAKPACE^:. 

 Herbs with a watery juice. Ovary three celled. Styles three. 



Seeds many. Leaves mostly unsymmetrical. BEGONIACE/E. p. 161. 



100. Ovary one celled. Placentae parietal. Styles two to five. Sta-' 

 mens inserted in the top of the calyx. Calyx ten to thirty parted. 

 Trees or shrubs. HOMALIACEJG. 



Ovary three to six celled. Ovules many. Styles one to four. 

 Stamens six to twelve. Herbs. AuisTOLOCHiACEJi:. p. 282. 



Ovary two celled. 



Ovary with one ovule in each cell. Styles one to three. Stamens 

 five. Calyx five cleft. Shrubs. RIIAMNACE.E. p. 86. 



Ovary with several ovules in each cell. Styles two. Stamens five 

 to ten. Leaves opposite. Shrubs or trees. CUNONIACE^:. p. 131. 



101. Flowers perfect. 105 

 Flowers imperfect. 



Ovary adherent to calyx, one celled. 102 

 Ovary free from calyx. 



Ovary one celled. Ovules few. Calyx five parted. Herbs grow- 

 ing near the sea or on salt plains. PRIMULACE.T;. p. 222. 



Ovary two celled, with two ovules in each cell. Stigma two cleft. 

 Flowers dioecious. Trees. RHAMNACE^E. p. 86. 



Ovary one to four celled. Stigma usually three or four lobed. 

 Stamens three to six. Shrubs or small trees. 



SANTALAOE^. p. 292. 



