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 it is explained. 



1. Plants having distinct bark and pith, reticulately-veined 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 



I'oltipetalcc. 



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 Pomece— Order Rosacea, 44 



Leaves without stipules 7 



7. Aquatic plants Nymphceacece, 9 



Not aquatic plants 8 



8. Shrubs or vines Saxifragacece, 59 



Herbaceous plants 9 



9. Fleshy plants Cactaceoz, 56 



Not fleshy plants Loasacece, 51 



10. Leaves with stipules 11 



Leaves without stipules 18 



11. Carpels more or less distinct 12 



Carpels united 13 



12. stamens hypogynoua Magnoliacece, 2 



stamens perigynoua Rosacea-, 44 



18, Flowers monoecious Euphorbiacea>, 108 



Flowers perfect 14 



it. Herbaceous plants 15 



More or less woody plants 17 



ens Afnnadelphoua Malvaceai, 33 



:i- not Afonadelphous 16 



Is 2 Portulacaoea, 22 



Sepals more than 2 OUtacec^ IS 



17. A small shrub, with 1 2 ovules RoSOO«4X, 44 



A tree, or with more than 'J 0\ ales Tiliacea', 34 



18. Carpels more or le-s distinct 19 



Carpels united 23 



10. Stamens perigynoni Rosacea, 44 



Stamens bj pogynous 20 



