227. Stamens 4-5. Shrubs or trees. Leaves exstipulate. =132. Icacinaceae.= Stamens 6 or more. 228 228. Stamens 6. Style 1. Sepals 4. Petals 4. Embryo curved. Leaves exstipulate. =88. Cruciferae.= Stamens 10 or more. Leaves undivided, stipulate. Shrubs or trees. 229 229. Stamens 10, hypogynous. Styles or stigmas 3-4. Sepals 5. Petals 5. _Erythroxylon_, =112. Erythroxylaceae=. Stamens 12 or more. 230 230. Style 1, with a single stigma. Stamens 12-20, perigynous. Sepals 5-12. Petals 5-12. Seeds with scanty albumen or without any. =103. Rosaceae.= Styles 2-6 or style 1 with 2 stigmas; in the latter case stamens more then 20. Seeds with copious albumen. =159. Flacourtiaceae.= 231. (214.) Ovules basal or attached to a central placenta. 232 Ovules attached to one or more parietal placentas. 244 232. Ovules basal. 233 Ovules attached to a central placenta. 239 233. Style or sessile stigma 1, entire. 234 Styles, stigmas, or stigma-lobes 2-6. 236 234. Stamens 10. Calyx closed in bud, subsequently 2-3-parted. Flowers solitary or in pairs. =196. Styracaceae.= Stamens 5-6. Calyx with 3-9 imbricate segments. 235 235. Flowers 5-merous, in cymes. Stamens perigynous. Anthers opening by longitudinal slits. Style present. Leaves opposite. _Pleurostylia_, =129. Celastraceae=. Flowers 6-merous, in racemes. Stamens hypogynous. Anthers opening by valves. Style wanting. Leaves alternate or all radical. =79. Berberidaceae.= 236. Stamens very numerous. Anthers linear. Style 2-cleft. Trees. Leaves alternate, stipulate. _Lophira_, =147. Ochnaceae=. Stamens 1-20; if more than 10, then styles 5. 237 237. Leaves and flowers clothed with glandular hairs; the former alternate. Stamens 10-20. Styles 5, free. Ovules upon a long funicle. Seeds albuminous, with a minute embryo. Undershrubs. _Drosophyllum_, =92. Droseraceae=. Leaves and flowers without glandular hairs. Stamens 1-10. Seeds with a large or rather large embryo. 238 238. Leaves alternate. Disc present. Ovules upon a short funicle. Seeds exalbuminous. =153. Tamaricaceae.= Leaves opposite. Seeds albuminous; embryo usually curved. =75. Caryophyllaceae.= 239. (232.) Ovules pendulous. Style 1. Fertile stamens 3-6. =59. Olacaceae.= Ovules ascending or horizontal. 240 240. Stamens as many as and opposite the petals. Style simple; stigma entire or obscurely lobed. 241 Stamens as many as and alternate with the petals or fewer or more numerous. 242 241. Stamens 3. Leaves opposite. Herbs. _Pelletiera_, =191. Primulaceae=. Stamens 4-7. Leaves alternate. Shrubs or trees. =190. Myrsinaceae.= 242. Calyx with valvate aestivation. Petals perigynous. Style simple with an entire or 2-lobed stigma. Seeds exalbuminous; embryo straight. =173. Lythraceae.= Calyx with imbricate aestivation. Petals hypogynous or nearly so. Style simple with a 3-lobed stigma or with several stigmas, or styles 2 or more. Seeds albuminous; embryo usually curved. 243