ANALYSIS OF THE ORDERS 



139 



32. Leatlcss and without verdure. 



32. Leaves only at base. Fls. spurred. 



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



88. Fruit 2-celled.... 34. 



84. Corolla convolute in bud. 



84. Corolla imbricate in bud. 



84. Corolla plicate in bud. 



Broomrapes. 



Butterworts. 



Pedaliads. 



Acardhs. 

 * Figivoi-ts. 



Nightshades. 94 



C. Orders of the Apetalous Exogens. 



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



Plants woody,— shrubs or trees 22. 



2. Flowers with a regular calyx 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 raany-ovuled, bearing many seeds. . . .12. 



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



7. Ovary 4-oo-ovuled, 4-oo-seeded....l7. 

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

 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, colored, 

 11. Flowers imperfect. Calyx lobed, green. 

 12. Stamens 4, opposite the sepals. 

 12. Stamens 5, alternate with the sepals. 

 18. Fruit 3-6-seeded, with 3 (often cleft) stigmas. Spurgeworts. 112 



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



14. Stipules sheathing the stems.. * Knot-grasses. 102 



14. Stipules none.. ..15. 



15. Calyx with scarious bracts outside. Amaranths. 



15. Calyx double. Climbing. Mexican Vine. 



15. Calyx naked 16. 



IG. Leaves alternate. Goosefoot$. 105 



16. Leaves opposite. § 3. * Order 21 



106 

 104 



