8 KEY AND FLORA 



II. Choripetalous Division. Calyx and corolla both present, the petals not united 



A 

 Stamens more than 10. 



FAMILY PAGE 



(1) Trees, shrubs, or woody vines. 



(a) Leaves alternate. 

 * Ovary 1, simple. 



Fruit a drupe 46. Rose .... 113 



** Ovary 1, compound ; fruit dry. 



Ovary 5-celled, 1-2-seeded at maturity . . 64. Linden .... 157 



Ovary 3-celled, many-seeded 69. Begonia . . . 164 



*** Ovary 1, compound; fruit fleshy .... 46. Rose .... 113 

 ** Ovaries numerous. 



t Leaves with stipules. 



Stamens inserted on the receptacle . . 35. Magnolia ... 92 

 Stamens many, monadelphous . . . 66. Mallow . . . .168 

 Stamens inserted on the calyx . . . 46. Rose . . . .113 

 tt Leaves not with stipules. 



Small trees 37. Papaw .... 94 



(6) Leaves opposite ; fruit dry. 



Ovary single, 3-5-celled 44. Saxifrage . . . 109 



Ovaries several, inclosed by the calyx tube . 36. Calycanthus . . 94 



(2) Herbs. 



(a) Ovary single, simple ; fruit a berry .... 34. Barberry ... 91 

 (ft) Ovaries several, simple. 



Stamens inserted on the receptacle . . . 33. Buttercup ... 83 



Stamens inserted on the calyx 46. Rose .... 113 



(c) Ovary compound. 



Aquatic herbs, leaves flat 32. Water Lily . . 82 



Marsh herbs, leaves tubular 43. Pitcher Plant . 108 



Terrestrial herbs. 

 * Ovary 1-celled. 



Placentae central, juice watery . . . 30. Purslane ... 76 



Placentae parietal, juice milky or colored 39. Poppy .... 96 



Placentae 2, parietal 41. Caper .... 107 



Placentae 3 or more, parietal. 



Leaves alternate 42. Mignonette . . 108 



Leaves opposite 66. St. John's-wort . 160 



Leaves apparently wanting; stems fleshy 70. Cactus .... 166 



** Ovary several-celled ; stamens monadelphous 65. Mallow. . . . 168 

 *** Ovary 3-celled; stamens not much if at all 



monadelphous ; stems fleshy, juice acid . 69. Begonia . . . 164 



