21 



179. 2 collateral oviiles in each cell ... 

 2 superposed or many ovules in 



each ceU 



180. Seeds attached to hooked or 



cupshaped retinae ula ... 

 Seeds without retinacula ... 



181. Tree with compound leaves pr, if 



simple, then capsule linear ... 



Herb ; or if tree, leaves simple 



and fruit ovoid 



182. Ovary 4-ceUed ... „, 

 Ovary 5-ceUed 



183. Cells 1-ovuled ... 

 Cells many-ovuled 



184. Pistil apocarpous ; stamens more 



than twice the perianth seg- 

 nients ... 

 Pistil syncarpous ; stamens not 

 more than twice segments ... 



185. Anthers opening in valves turned 



upwards ; trees, shrubs, or 



rarely leafless twiners . ... 



Anthers opening longitudiaaUy ... 



186. Leaves present 

 Leaves wanting ... 



187. Tree with pinnate leaves ... 

 Leaves not pinnate 



188. Flowers hermaphrodite ; fruit 



succulent ... 



Fruit dry, winged... 



189. Flowers unisexual ; fruit small, on 



a large thin 3-lobed bract 

 Fruit with one terminal wing 



190. Leaves pitcher-shaped 



Leaves not pitcher-shaped 



191. Flowers wholly or partially 



hermaphrodite 



Flowers wholly unisexual 



192. Perianth wanting 



Perianth present 



193. Anthers 1 or 3, on the top of the 



ovary; shrub; leaves opposite; 

 spikes without bracts 

 Stamens 2-8 at base of ovary ; 

 herb 



194. Perianth superior .. . ... 



Perianth inferior ... 



195. Perianth regular ... 

 Perianth irregular ... 



196. Perianth contracted above ovary 

 Perianth not contracted above 



.( . i ovary ► 



Verbenuceae (p. 201). 



180. 



Acanthaceae (p. 196). 

 181. 



Bignoniaceae (p. 195). 



Scrophulariaceae (p. 184). 



183. 

 Myoperaceae (p. 200). 

 Verbenaceae (p. 201). 

 Pedalinaceae (p. 196). 



7 (p. 11). 

 185. 



Lauraceae (p. 222). 

 186. 

 187. 



230 (p. 24). 

 188. 

 190. 



Sapindaceae (p. 66). 

 189. 



Juglandaceae (p. 250). 

 Oleaceae (p. 165). 

 Nepenthaceae (\o. 219). 

 191.' 



192. 

 212. 

 193. 

 194. 



Chloranthaceae (p. 22l). 



Piperaceae (p. 220). 



195. 



201. 



196. 

 Aristolochiaceae (p. 219). 



197. 



199. 



