1 86 SYSTEMATIC BOTANY. 



To find the order of a plant, first determine the group to 

 which it belongs ; then compare it with the characteristics of the 

 orders of that group, one after another, until the one is reached 

 to which the plant belongs. Its page in the body of the Flora 

 is indicated by the figures. Now refer to this order, and look 

 through the analysis of its genera to find the genus of the plant. 

 If it is a common one, you will find it described and named 

 among the species of this genus. 



Hypogynous or Inferior Polypctalous Exogens. 



1. Ranunculaceae. Stamens co; often apetalous, sepals colored ; 

 carpels distinct. Herbs, rarely shrubs. 191. 



2. Magnoliaceae. Like i, but trees. 194. 



3. Berberidaceae. Stamens opposite petals, opening by valves. 195. 



4. Nymphaeaceae. Stamens co ; aquatic. 196, 



5. Sarraceniaceae. Leaves pitcher-shaped. 197. 



6. Papaveraceae. Flowers regular ; sepals 2-3, caducous ; pla- 

 centas parietal. Herbs with milky or colored juice. 197. 



7. Fumariaceae. Flowers irregular ; sepals 2, persistent. Herbs 

 with watery juice. 198. 



8. Cruciferae. Flowers cruciate ; stamens tetradynamous ; ovary 

 synearrpous, 2-celled, Herbs. 199. 



9. Capparidaceae. Like 8, but stamens not tetradynamous ; 

 ovary i-celled. 202. 



10. Resedaceae. Flowers irregular ; stamens oo, on a lateral 

 disk ; placentae parietal, pod opening before maturity. Herbs. 202. 



11. Violaceae. Flowers irregular ; stamens 5, on a disk ; pod 3- 

 valved, with 3 parietal placentae. Herbs. 203. 



12. Cistaceae. Stamens co; pods 3~5-valved ; placentae parietal. 

 Shrubs or herbs. 204. 



13. Polygalaceae. Flowers irregular ; stamens 6-8, with apical 

 pores ; pod 2-seeded. 204. 



14. Caryophyllaceae. Flowers regular ; ovary usually i-celled, 

 with free central placentae. Herbs with opposite leaves. 205. 



15. Portulacaceae. Like 14, but with 2 sepals. Leaves fleshy. 

 Low herbs. 207. 



16. Hypericaceae. Flowers regular ; stamens co, polyadelphous ; 

 leaves entire, opposite, with pellucid dots. Herbs or shrubs. 208. 



17. Malvaceae. Flowers regular; stamens oo, monadelphous ; 

 leaves alternate, palmate. Herbs or shrubs. 209. 



1 8. Tiliaceae. Flowers regular ; stamens oo, in 5 clusters ; fruit 

 a I -2-seeded nut. Trees. 210. 



