243. Sepals 2. Stamens 8-30. Stigmas or stigma-lobes 3. Leaves alternate. =73. Portulacaceae.= Sepals 4-5. Stamens 1-10. Leaves opposite. =75. Caryophyllaceae.= 244. (231.) Ovules attached to a single placenta. 245 Ovules attached to two or more placentas. 248 245. Sepals evidently united, rarely free or nearly so, and then petals 5 or leaves stipulate. Stamens usually perigynous. Stigma 1. Leaves usually compound. =105. Leguminosae.= Sepals free or nearly so. Petals 2-4. Stamens hypogynous. Leaves exstipulate, simple, but often dissected. Herbs or undershrubs. 246 246. Flowers distinctly irregular. Sepals 5. Petals 2-4. Stamens numerous. Fruit opening at one side. Embryo straight. _Delphinium_, =78. Ranunculaceae=. Flowers regular or nearly so. Sepals 4 or 8. Petals 4. Stamens 4 or 6. Fruit opening in two valves or remaining closed. Embryo more or less curved. 247 247. Stamens 4. Anthers opening by valves. Stigma 1. Albumen abundant. Leaves dissected. _Epimedium_, =79. Berberidaceae=. Stamens 6. Anthers opening by longitudinal slits. Albumen scanty or wanting. =88. Cruciferae.= 248. (244.) Style 1, undivided, with a single stigma or with 2 or more stigmas contiguous at the base, or 1 sessile stigma. 249 Styles 2-6, free or more or less united with separated stigmas (not contiguous at the base), or 2-6 free sessile stigmas. 266 249. Fertile stamens as many as petals or fewer, 2-10. 250 Fertile stamens more than petals. 257 250. Fertile stamens 10. Filaments united. Anthers opening outwards. Stigmas 5. Sepals 3. Trees. _Warburgia_, =157. Winteranaceae=. Fertile stamens 2-6. 251 251. Fertile stamens 2-4. Flowers hermaphrodite. Seeds exalbuminous, with curved embryo. =87. Capparidaceae.= Fertile stamens 5, rarely (_Passifloraceae_) 4 or 6, but then flowers unisexual. Seeds rarely exalbuminous, and then with straight embryo. 252 252. Fertile stamens opposite the petals. Shrubs or trees. 253 Fertile stamens alternate with the petals. Leaves simple. Seeds albuminous. 254 253. Flowers irregular. Petals perigynous. Anthers opening by a single slit. Placentas 3. Seeds exalbuminous. Leaves pinnate. _Moringa_, =90. Moringaceae=. Flowers regular. Anthers opening by 2 slits. Seeds albuminous. Leaves simple, undivided. =159. Flacourtiaceae.= 254. Sepals united below. Petals perigynous, sometimes nearly hypogynous, and then, as usual, staminodes or a corona interposed between the petals and the stamens. Flowers regular. =161. Passifloraceae.= Sepals free or nearly so. Petals hypogynous or nearly so; in the latter case neither staminodes nor a corona within them. 255 255. Staminodes present, sometimes petal-like. Placentas 3. Flowers regular. Herbs or undershrubs. Leaves stipulate. =147. Ochnaceae.= Staminodes wanting. 256 256. Leaves stipulate, rarely exstipulate and then stem herbaceous or suffruticose. Placentas 3. =158. Violaceae.=