42 CHORIPETALAE 



Stem herbaceous or woody at the base only, rarely throughout, but then 

 leaves lobed or dissected and sepals 4 or more. Albumen uniform. 



78. Ranunculaceae. 



470. (457.) Leaves stipulate 471 



Leaves exstipulate 474 



471. Petals and stamens perigynous 103. Rosaceae. 



Petals and stamens hypogynous 472 



472. Disc one-sided, scale-like. Ovary stalked. Stamens 10 — 15. Flowers 



irregular, 5-merous. Seeds exalbuminous. Herbs. Leaves undivided. 



Caylusea, 89. Resedaceae. 

 Disc stalk-like or wanting. Seeds albuminous. Shrubs or trees. 473 



473. Calyx with valvate, corolla with contorted aestivation. Stamens 10 or 



more. Petal-like staminodes within the stamens 5^ — 10. Flowers 



regular, 5-merous 144. Sterculiaceae. 



Calyx and corolla with imbricate aestivation. Stamens numerous. 

 Leaves undivided 146. Dilleniaceae. 



474. Stamens as many or twice as many as the petals 475 



Stamens numerous, not exactly twice as many as the petals, hypogynous. 



Seeds with abundant albumen 479 



475. Sepals 2 — 3. Petals 3 — 6. Stamens 6 — 12, hypogynous. Albumen 



abundant. Shrubs or trees. Leaves alternate, undivided. 



81. Anonaceae. 

 Sepals 4 or more, rarely 3, but then stamens 3 476 



476. Stem herbaceous or woody at the base, rarely throughout, but then, as 



usually, ovules numerous. Albumen scanty or wanting. 



95. Crassulaceae. 

 Stem woody throughout. Ovules 2 477 



477. Leaves pinnate, with 3 or more leaflets, alternate, rarely dotted and then 



stamens 10. Flowers 5-merous. Ovules ascending, straight. Seeds 



with an aril 104. Connaraceae. 



Leaves simple or compound ; in the latter case, as usually, leaves trans- 

 lucently dotted and stamens 3 — 5. Ovules inverted. Seeds without 

 an aril 478 



478. Style terminal or nearly so. Stamens 3 — 5. Seeds albuminous, with a 



thick and hard coat Fagara, 115. Rutaceae. 



Styles basal or nearly so. Stamens 5 — 10. Seeds exalbuminous, with 

 a thin coat. Leaves undivided. . . Suriana, 116. Simarubaceae. 



479. Sepals 2 — 3. Petals 3 — 6. Albumen ruminate. Shrubs or trees. Leaves 



undivided 81. Anonaceae. 



Sepals 4—6, imbricate in bud 480 



480. Seeds with an aril. Sepals persistent. Shrubs or trees. Leaves un- 



divided 146. Dilleniaceae. 



Seeds without an aril. Herbs or undershrubs. Leaves more or less 

 deeply divided or compound 78. Ranunculaceae. 



