ANALYSIS OF THE ORDERS 



139 



82. Leatless and without verdure. * Broomrapes. 82 



32. Leaves only at base. Fls. spurred. * Butter woi'ts. 81 



82. Leafy 33. Fruit 4 or 5-celled. Pedaliads. 84 



33. Friiit 2-celled 34. 



34. Corolla convolute in bud. Acanths. 87 



84. Corolla imbricate in bud. * Figtvorts. 86 



84. Corolla plicate in bud. * Nightshades: 94 



O. Orders of the Apetalous Exogens. 



1. Plants heibaceous, the flowers not in aments (except in the Hop, 115). . . .2. 



1. Plants woody,— shrubs or trees 22. 



2. Flowers with a regular qalyx or calyx-like involucre. . . .3. 



2. Flowers naked, having neither calyx nor corolla 20. 



3. Calyx tube adherent to the ovary, limb lobed, toothed, or entire.. 



3. Calyx free from the ovary, sometimes inclosing it 4. 



4. Ovaries several, entirely distinct, each 1-styled, 1-seeded. * Order 



4. Ovary one only, simple or compound 5. 



5. Style or stigma one only 6. 



5. Styles or stigmas 2-12 7. 



6. Ovary 1-ovuled, bearing but one seed 11. 



6. Ovary many-ovuled, bearing many seeds. . . .12. 



7. Ovary 1-3-ovuled, 1-3-seeded 13. 



7. Ovary 4-oo-ovuled, 4- co-seeded 17. 



8. Stamens 1-12, as many or twice as many as the stigmas. . . .9. 



8. Stamens 2-10, not symmetrical with the 1 or 2 stigmas 10. 



9. Stigmas and cells of the ovary 1~4. 

 9. Stigmas and cells of the ovary 6. 



10. Ovary many-seeded. Styles 2. 

 10. Ovary 1 or 2-seeded. Style 1. 

 11. Flowers perfect. Calyx 4-lobed. Stamens 1-4. 

 11. Flowers perfect. Calyx entire, funnel-shaped, c( 

 11. Flowers imperfect. Calyx lobed, green. 



12. Stamens 4, opposite the sepals. =" 



12. Stamens 5, alternate with the sepals. 

 18. Fruit o-6-seeded, with 3 (often cleft) stigmas. 

 13. Fruit 1-seeded.... 14. 



14. Stipules sheathing the stems.. 

 14 Stipules none. . . .15. 



15. Calyx with scarious bracts outside. 

 15. Calyx double. Climbing. 



15. Calyx naked 16. 



16. Leaves alternate. 

 16. Leaves opposite. 



