DICHOTOMOUS ANALYSIS. 



Ant term that the student may not understand, he will find it explained by turn- 

 ing to the Index at the end of the volume, or he will find a number referring to the 

 paragraph in the First Part, where i^ is explained. 



1. Plants having distinct bark and pith, reticulately-veincd leaves. Floral 



organs, usually 4 — 5 in a whorl 2 



Plants with no distinct bark and pith, parallel-veined leaves. Floral organs, 

 usually 3 — 6 in a whorl 1S8 



DICOTYLEDONOUS PLANTS. 



2, Flowers having calyx and corolla 3 



Flowers having no corolla 91 



Dichlamydece. 



8. Petals distinct 4 



Petals united, forming a tube 143 



Polypelahe. 



4. Stamens numerous, generally more than 20 5 



Stamens few, less than 20 25 



5. Ovary inferior 6 



Ovary superior . . 10 



6. Leaves with stipules Sub-order Pomem—Ovder Rosacem, 44 



Leaves without stipules 7 



7. Aquatic plants NymphcBacecB, 9 



Not aquatic plants 8 



8. Shrubs or vines Styracece, 73. Saxifragacece, 59 



Herbaceous plants ". 9 



9. Fleshy plants Cactncem, 56 



Not fleshy plants Loasaceoe, 51 



10. Leaves with stipules 11 



Leaves without stipules 18 



11. Carpels more or less distinct or solitary. 12 



Carpels united 13 



12. Stamens hypogynous LeguminoscB, 43. Magnoliacece, 2 



Stamens perigynons Rosacea; 44 



13. Flowers monoecious Eupfiorhiacece, 108 



Flowers perfect 14 



14. Herbaceous plants 15 



More or less woody plants 17 



15. Stamens Monadelphous Malvacem, 33 



Stamens not Monadelphous 16 



16. Sepals 2 Portulncacea; 22 



Sepals more than 2 Ciaiacecp, IS 



17. A small shrub, with 1—2 ovules Rnsacem, 44 



A tree, or with more than 2 ovules Tdiacem, 34 



18. Carpels more or less distinct or solitary 10 



Carpels united 23 



19. Stamens perigynous Rosacea^ 44 



Stamens hypogj-nous 20 



