127 



Series II. Dialypetalae. (Fam. 24 — 35.) 



Order X. Ranales (Polycarpicae). 



A. Ovary superior. 



a. Stamens numerous. Sepals and petals often numerous. 



I. Aquatic herbs. 



1. Carpels several, borne on a concave receptacle. Leaves large, 



entire, floating on the surface. 



(page 216) 24. Nymphaeaceae 



2. Carpel 1. Leaves lacerate, submerged. 



(page 218) 25. Ceratophyllaceae 



II. Terrestrial plants. 



1. Herbs or climbing shrubs. Carpels many, borne on a flat or 



convex receptacle. Oil-cells absent. 



(page 220) 26. Ranunculaceae 



2. Shrubs, erect or suberect. Flowers 3-merous. All parts 



with oil-cells. 



(page 225) 28. Anonaceae 



b. Stamens 3 — 15. Carpels i-ovuled. Sepals few, petals few (rarely 



numerous). Shrubby. 



(page 223) 27. Menispermaceae 



B. Ovary inferior, 1 -celled, i-ovuled. 



a. Stamens in 3 whorls, anthers opening with valves. 



(page 226) 29. Lauraceae 



b. Stamens in 1 or 2 whorls. Anthers splitting. 



(page 230) 30. Monimiaceae 



Order XL Rhoeadales. 



A. Sepals 2, deciduous. Albumen oily. 



(page 232) 31. Papaveraceae 



B. Sepals 4. Albumen o. 



a. Ovary closed at the apex. 



I. Stamens many or 4, similar. Ovary stipitate. 



(page 233) 32. Capparidaceae 



II. Stamens 6, tetradynamous. Ovary sessile. 



(page 240) 33. Cruciferae 



b. Ovary gaping at the summit, placentae 3 — 4, parietal. 



Petals 2 (S. A.), minute. Herbs. 



(page 243) 34. Resedaceae 



C. Sepals 5. Petals 5. Seeds large, winged. Albumen o. 



(page 244) 35. Moringaceae 



