CHORIPETALAE 25 



264. Anthers curved. Placentas 2. Petals red. Flowers and flower-stalks 



clothed with minute scales Bixa, 155. Bixaceae. 



Anthers straight. Placentas 3—5. Petals yellow. Flowers and flower- 

 stalks glabrous or clothed with simple hairs. 



Cochlospermum, 156. Cochlospermaceae. 



265. Embryo distinctly curved, folded, or rolled up. Ovules usually straight. 



Disc and corona usually wanting. Anthers opening inwards or laterally. 

 Sepals 3 or 5. Petals 5, with contorted aestivation. Leaves mostly 

 opposite. Herbs, undershrubs, or shrubs. . . . 154. Cistaceae. 

 Embryo straight or nearly straight. Ovules inverted. Disc or corona 

 usually present. Anthers usually opening outwards. Leaves alternate. 

 Shrubs or trees 159. Flacourtiaceae. 



266. (248.) Leaves opposite, rarely whorled, undivided. Land-plants. . 267 

 Leaves alternate or all radical, rarely {Droseraceae) whorled, but then 



water-plants with 5 stamens and 5 styles 268 



267. Sepals united below, valvate in bud. Stamens 4 — 6. Style 2 — 3-cleft. 



Seeds with abundant albumen 152. Frankeniaceae. 



Sepals free, imbricate in bud. Stamens g or more. Seeds without 



albumen Hypericum, 149. Guttiferae. 



2t>8. Herbs with glandular hairs or with whorled leaves. Sepals, petals, and 

 stamens equal in number, 4, 5, or 8. Anthers more or less turned 

 outwards. 92. Droseraceae. 



Herbs or undershrubs without glandular hairs or woody plants ; if herbs, 

 then anthers turned inwards, at least when young. Leaves alternate 

 or all radical 269 



269. Flowers irregular. Ovary open at the ape.x. Stigmas sessile. Seeds 



exalbuminous ; embryo curved 89. Resedaceae. 



Flowers regular. Ovary closed 270 



270. Corolla with contorted aestivation, more or less perigynous. Calyx 



deciduous, callous or glandular within. Sepals, petals, and stamens 5. 



Anthers turned inwards. Styles 3 160. Turneraceae. 



Corolla with imbricate, not contorted, or with valvate aestivation, very 

 rarely with contorted aestivation, but then stamens numerous. . 271 



271. Seeds exalbuminous, rarely albuminous, and then placentas finally sep- 



arating from the wall of the ovary. Anthers usually turned outwards. 



Leaves exstipulate 153. Tamaricaceae. 



Seeds albuminous. Placentas not separating from the wall of the ovary. 

 Anthers turned inwards, rarely outwards, but then, as usually, leaves 

 stipulate 272 



272. Stem erect, rarely climbing, and then stamens numerous or anthers turned 



outwards. Corona, if present, simple or double. Ovary sessile or nearly 



so. Shrubs or trees. Leaves simple, undivided. 159. Flacourtiaceae. 



Stem climbing, usually tendril-hearing, rarely erect, but then corona 3- or 



