8 



KEY AND FLORA 



11. Choripetalous Division. 



Calyx anii corolla both present, tlie petals not united. 



A 



Stamens more than 10. 



(1) Trees, shrubs, or woody vines, 

 (a) Leaves alternate. 



* Ovary 1, simple. 



Fruit a drupe ... 46. Rose 



** Ovary 1, compound; fruit dry. 



Ovary 5-celled, l-2-8eeded at maturity 

 Ovary 3-celled, many-seeded . 

 *** Ovary 1, compound ; fruit fleshy 

 **** Ovaries numerous. 



t Leaves with stipules. 



Stamens inserted on the receptacle 

 Stamens many, monadelphous 

 Stamens inserted on the calyx 

 tt Leaves not with stipules. 



Small trees 



(6) Leaves opposite ; fruit dry. 



Ovary single, 3-5-oelled 44. Saxifrage 



Ovaries several, inclosed by the calyx tube 



(2) Herbs, 

 (a) Ovary single, simple ; fruit a berry . 

 (6) Ovaries several, simple. 



Stamens inserted on the receptacle 



Stamens inserted on the calyx 46. Rose 



(c) Ovary compound. 



Aquatic herbs, leaves flat 32. Water Lily 



Marsh herbs, leaves tubular 43. Pitcher Plant 



Terrestrial herbs. 

 * Ovary 1-celled. 



Placentai central, juice watery , . 30. Purslane . 



Placentae parietal, juice milky or colored 39. Poppy . 



Placentse 2, parietal 41 . Caper . 



Placentae 3 or more, parietal. 

 Leaves alternate 42. Mignonette 



Family 



64. Linden . 

 69. Begonia 

 46. Rose . 



35. Magnolia 

 65. Mallow . 

 46. Rose . 



37. Papaw . 



36. Calycanthus 

 34. Barberry . 

 33. Buttercup . 



Leaves opposite . . .... 



Leaves apparently wanting ; stems fleshy 

 * * Ovary several-celled ; stamens monadelphous 

 *** Ovary S-celled; stamens not much if at all 



monadelphous ; stems fleshy, juice acid . 69. Begonia 



66. St. John's-wort 

 70. Cactus . . . 

 65. Mallow. . . 



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