20 CHORIPETALAE 



210. Stamens as many as and opposite the petals, 4 — 5. Calyx little developed, 



entire or obscurely toothed. Shrubs. Leaves undivided. 



57. Opiiiaceae. 

 Stamens as many as and alternate with the petals or more. Calyx dis- 

 tinctly developed 211 



211. Stamens 6. Sepals 4. Petals 4. Embryo curved. Herbs or under- 



shrubs, rarely shrubs. Leaves simple 88. Cruciferae. 



Stamens 4 or more, rarely 6. but then sepals 3 and petals 3. Shrubs 

 or trees 212 



212. Stamens numerous ; filaments united. Style thread-shaped. Corolla 



with imbricate or contorted aestivation. Leaves opposite, undivided. 



Shrubs Endodesmia, 149. Guttiferae. 



Stamens 4 — 20 ; if more than 10, then style short and thick, corolla with 

 valvate aestivation, and leaves pinnate 213 



213. Ovule with ventral raphe. Stamens 10. Leaves with i — 3 transparently 



dotted leaflets Eriafider, 115. Rutaceae. 



Ovule with dorsal raphe 127. Anacardiaceae. 



214. (191.) Ovules 2 215 



Ovules 3 or more. , 231 



215. Ovules or their funicle erect or ascending 216 



Ovules or their funicle pendulous or descending. 224 



216. Ovules attached one above the other, rarely side by side ; in the latter 



case flowers irregular, stamens 9^ — 10, and style terminal or nearly so. 



Leaves usually stipulate. 217 



Ovules attached one opposite the other or side by side. Flowers regular, 

 more rarely irregular, but then stamens 6 or style basal. Leaves us- 

 ually exstipulate 218 



217. Flowers regular. Calyx 5-lobed, valvate in bud. Stamens 5, opposite 



the petals, hypogynous. Leaves undivided. 



Waltheria. 144. Sterculiaceae. 

 Flowers irregular, more rarely regular, but then, as usually, stamens 

 perigynous or more than 5. Leaves usually compound. 



105. Leguminosae. 



218. Ovules straight. Stamens 5 or 10, more or less distinctly perigynous. 



Leaves compound. Shrubs or trees 104. Connaraceae. 



Ovules incurved or inverted. Leaves simple, undivided or dissected ; in 

 the latter case herbs , . . . . 219 



219. Styles 2, free or united below. Stamens 2 — 5, hypogynous or nearly so. 



Leaves opposite. Herbs or undershrubs. , 75. Caryophyllaceae. 



Style I, with a single stigma. Leaves alternate, rarely opposite, but then 



shrubs or trees. ■. . . . . 220 



220. Style basal. Stamens perigynous. Leaves alternate. Shrubs or trees. 



Seeds exalbuminous . 103. Rosaceae. 



