K^Y TO THE FAMILIES. I9. 



175. Sepals united into a minute 4-5 toothed calyx. 



(Ximenia) 36 OLACACEAE. 

 Sepals free or united at base only. (Climbers.) 



78 MALPIGHIACEAE. 



176. Stamens numerous. Anthers 1 celled. Calyx valvate. 



95 MALVACEAE. 

 Stamens 5 — 12. Anthers 2 celled. Calyx imbricate or open. 



177. 



177. Style 1 with 1 or 2 stigmas. Leaves compound exstipulate. 



71 MELIACEAE. 

 Styles 2 — 5, free or united, but with stigmas not contiguous. 



178. 



178. Stamens 5. (Linum). 72 LINACEAE. 

 Stamens 10— 12. 179. 



179. Herbs. Ovary 5 celled, styles 5. (Oxalis). 



71 OXALIDACEAE. 

 Shrubs or trees, ovary 1— 4 celled. 73 ERYTHROXYLACEAE 



180. (156) Ovules 2 in each ovary cell. 181. 

 Ovules 3 or more in each ovary cell. 2O8. 



181. Style 1, or styles 2 or more, united to base of stigmas, or 1 



sassile stigma. I82. 



Styles 2 or more, free or united below, or 2 or more sessile 



stigmas. 199. 



182. Stamens as many as, or fewer than the petals. 183. 

 Stamens more than the petals. 189. 



183. Stamens as many as, and opposite the petals. I84. 

 Stamens alternate with the petals or fewer. 185. 



184. Petals valvate. Filaments free. Ovary 2 celled. Fruit a 



berry. 93 VITACEAE. 



Petals imbricate. Filaments not free. Ovary 2 or more 



celled. Fruit a capsule. 96 STERCULIACEAE. 



185. Shrub with 4 large spines in leaf axils. Flowers dioecious. 



(Azima). 87 SALVADORACEAE. 

 Leaf axils not with 4 large spines. 186. 



186. Anthers extrorse. Stamens 3. Ovary 3 celled (Salacia). 



86 HIPPOCRATEACEAE. 

 Stamens not 3 with ovary 3 celled. 187. 



187. Leaves gland dotted, exstipulate, but sometimes with axillary 



spines. 75 RUTACEAE. 



Leaves not gland dotted, stipulate. 188. 



188. Sepals valvate, coloured, hooded at the point, and dorsally 



mucronate. (Triumfetta) 94 TILIACEAE. 



Sepals with imbricate or open aestivation. 



85 CELASTRACEAE. 



189. Trees with thick resinous bark. Receptacle concave, sepals 



4, petals 4- 



