CHORIPETALAE I9 



Corolla irregular. Stamens 2, three-cleft (or 6, united in 2 bundles). 

 Style simple. Embryosmall. Herbs. Leaves dissected. 86. Papaveraceae. 



201. Stamens numerous. Style i. Corolla with imbricate or contorted 



aestivation. Leaves opposite. Shrubs or trees. 



Calophyllnm, 149. Guttiferae. 



Stamens i — 10, rarely more, but then styles 3 or corolla with valvate 



aestivation 202 



202. Stamens as many as the petals, 4, opposite and adnate to them. Stigma 



I. Calyx entire or toothed. Petals 4, valvate. Shrubs or trees. 



55. Prrteaceae. 



Stamens as many as and alternate with the petals or fewer or more 



numerous. 203 



203. Stigmas or stigma-lobes i — 2. Stamens 2, 4, or 6. Sepals 4. Petals 4. 



Flowers hermaphrodite. Seeds with curved embryo. Herbs or under- 



shrubs, rarely shrubs 88. Cruciferae. 



Stigmas or stigma-lobes 3, rarely only i, but then fertile stamens 

 I, 5, 8, or more. Shrubs or trees 204 



204. Flowers in axillary clusters, hermaphrodite. Sepals and petals valvate 



in bud. Petals hooded. Stamens 8—10, with 4-celled anthers (or 

 16 — 20 united in pairs). Style and stigma simple. 



Hua, 144. Sterculiaceae. 



Flowers in panicles. Petals not hooded. Stamens neither with 4-celled 



anthers nor united in pairs 127. Anacardiaceae. 



205. (192.) Leaves stipulate. Stamens 9 — 10 206 



Leaves exstipulate, rarely (Polygalaceae) stipulate, but then stamens 



8 207 



206. Flowers irregular. Stamens more or less perigynous. Style simple. 



105. Leguminosae. 

 Flowers regular. Stamens hypogynous. Styles 3—4, free or partly 

 united. Trees, shrubs, or undershrubs. 



Erythroxylon, 112. Ery thro xy lace ae. 



207. Flowers distinctly irregular, hermaphrodite. Stamens 8 ; filaments 



united; anthers opening by a pore. Style i. Shrubs or trees. Leaves 



undivided Securidaca, 120. Polygalaceae. 



Flowers regular or nearly so, rarely distinctly irregular, but then unisexual 

 or with 10 stamens. Anthers opening by longitudinal slits. . . 208 



208. Flowers unisexual. Stamens as many as and opposite the petals or 



more. Leaves simple or digitate. ... 80. Menispermaceae. 



Flowers hermaphrodite or polygamous, rarely {Anacardiaceae) unisexual, 



but then stamens alternating with the petals or leaves pinnate. . 209 



209. Stamens distinctly perigynous, 4 ,8, or 10. Style simple ; stigma entire. 



Leaves undivided. Shrubs 171. Thymelaeaceae. 



Stamens hypogynous or nearly so, rarely [Anacardiaceae) distmctly 

 perigynous, but then stigma lobed and leaves pinnate. . . . 310 



