ANALYSIS OF POLYPETALOUS ORDERS. :{ 



Stamens ftw (not more than twice the number of 

 the sepals). 

 Stamens monadelphous. Moncecious. Leaves 



simple, dotted. 4. Schizandrace^e. 



Stamens distinct, submoncecious. Leaves com- 

 pound, dotted. 33. Zanthoxylacea:. 

 Stamens distinct. Leaves not dotted. 



Leaves stipulate. Stamens perigynous. 49. Rosacea. 



Leaves not stipulate. 



Carpels 1-seeded utriculi : styles united. 30. LiMNANTUACE^.t 

 Carpels 1-seeded, woody : styles from the 



base. 64. Surianace«. 



Carpels 1-seedcd, drupaceous, incurved. 5. MeKispermace^. 

 Carpels follicular. 

 Follicles 1-3-seedcd. Polygamous. 1. RANUNCULACE«.t 



Follicles equal in number to the sepals, 



several-seeded. 65. Crassolaceje. 



Follicles 2 (rarely 3) ; seeds numerous. 66. SAXiFRAGACES.t 



§ 2. Ovary solitary, simple {of one carpel). 



Anthers (except in Podophyllum) opening by re- 

 curved valves. Stamens opposite the petals. 6. Berberidace.e. 

 Anthers not opening by recurved valves. 

 Corolla papilionaceous or irregular. Leguminous. 48. Leguminos;e. 

 Corolla (when present) regular. 

 .Estivation of the sepals and petals valvate. — 



Fruit a legume. 48. § Mimose;e. 



jEstivation of the sepals valvat©, of the petals 



imbricated. Fruit an achcnium. 49. § Sanguisoree^. 



JEstivation of the sepals (& petals) imbricated. 

 Stamens indefinite, perigynous. 



Style terminal. 49. Subord. Amygdale.e. 



Style lateral. 49. Sulord. Chrysoealane.e. 



Stamens indefinite, hypogynous. L RANUNCULACE^.t 



Stamens double the number of the sepals. 



Leaves multifid. Aquatic. Petals none. 8. Ceratophtllace«. 

 Leaves compound, dotted. Drupe Qily. 35. Amyridace^. 

 Stamens the same number as the sepals. — 

 Drupe dry.* 34. Anacardiace.e. 



§ 3. Ovary compound or syncarpous. 

 * Leaves alternate, or all radical, 

 t Stamens indefinite, or more than 12. 



Placentae parietal. 

 Sepals 2 (very rarely 3). Juice milky or colored. 12. Papaverace.e. 

 Sepals 4. Juice watery. 15. Capparidace^e. 



Sepals 5 (rarely 3). Petals fugacious. 20. Cistace^. 



Sepals 5. Petals marcescent. Stamens all but 5 



sterile. 19- Siibord. Parnassie^. 



Placentae occupying the whole surface of tlie dis- 

 sepiments. 10. NlMPH5;ACEiE. 

 Placentae in the axis. 



Stigma peltate, petaleid. Leaves hollow. 11. Sarracemiace.e, 

 Stigmas not petaloid. 

 Capsule 1-celled, with a free central placenta. 25. Portulacaceje. 

 Capsule more than 1-celled. 



* Ovary apparently simple, but really compound, as is indicated by the triple 

 style. 



