14 KEY TO THE FAMILIES. 



49. Stamens as many as the petals and opposite them, 59 



49. Stamens as many as the petals and alternate with them, - - 61 



49. Stamens reduced in number to less than that of sepals or petals; 



ovary 1-celled, fruit a capsule, - - - - - - 66 Alsinaceae 



49. Stamens reduced to 2, sepals and petals 4; ovary 2-celled; 



fruit a silique or silicle, - - - - TO Brassicaceae 



50. Calyx caducous, - - -----75 Papaveraceae 



50. Calyx persistent, - - - -------51 



51. Stamens monadelphous, - -------52 



51. Stamens commonly collected into 3 or 5 groups, - 113 Hypericaceae 

 51. Stamens distinct, ----------53 



52. Anthers 1-celled, -------- m Malvaceae 



52. Anthers 2-3 celled, -------- 112 Sterculiaceae 



53. Style absent or nearly so, stigma 3-lobed, - - 116 Cistaceae 



53. Styles united into a peltate structure, * - - 79 Sarraceniaceae 

 53. Styles and stigmas united into a disk, - - - 74 Nymphaeaceae 

 53. Styles more or less united, or distinct, - - - - - 54 



54. Ovary 1-celled, -------- 113 Hypericaceae 



54. Ovary 3-5 celled, - - - - - - - -114 Theaceae 



55. Ovary 1-celled, ----------55 



55. Ovary 2-celled; flowers seemingly papilionaceous, - 100 Polygalaceae 

 55. Ovary 2-celled or falsely several-celled, flowers cruciferous, 76 Brassicaceae 

 55. Ovary 3-celled; sepals and petals 5; stamens 9 in groups of 3; 



styles distinct; herbs, ------ 113 Hypericaceae 



55. Ovary 3-celled; sepals and petals 5; stamens 8; style 1 with 3 



stigmas; herbs, cultivated, ----- 94 Geraniaceae 



55. Ovary 5-celled, ---_ ------ 5g 



55. Ovary 6-7 celled; sepals and petals 6-7; stamens 12-14, 135 Ericaceae 

 56. Style obsolete or short, stigma entire or 3-lobed, - - 116 Cistaceae 

 56. Styles present, ----------- 57 



57. Sepals 2, petals 4-6, stamens 8-many, styles 3-8, - - 66 Portulacaceae 

 57. Sepals and petals 4-5, white; stamens 10 or less, styles 3-5, 66 Alsinaceae 

 57. Sepals and petals 5, yellow; stamens 5-20, styles 3, - 113 Hypericaceae 

 58. Stamens distinct, styles united into a beak, 94 Geraniaceae 



58. Stamens united below into 2 sets, styles distinct, 97 Oxalidaceae 



59. Flowers monoecious, ------ 101 Euphorbiaceae 



59. Flowers perfect, ---__---__ 60 



60. Ovary 1-celled, 3 carpeled, ------ 63 Basellaceae 



60. Ovary 1-celled, 5 carpeled, ------ 137 Armeriaceae 



60. Ovary 2-celled, flowers cruciferious, - - - - - 76 Brassicaceae 



61. Ovary 1-celled, 62 



61. Ovary 2-3 celled, sepals and petals 4-5, 98 Rutaceae 



61. Ovary 5-celled; one of the sepals spurred, 96 Balsa minaceae 



61. Ovary 5- or rarely 2-celled, each cavity with a false partition; 



sepals and petals 5; no spur, - 96 Linnaceae 



62. Style obsolete or short, ------- 116 Cistaceae 



62. Style 1, ovary with 3 parietal placentae, stigmas 1 or 3, - 83 Pittosporaceae 

 62. Style 1, one of the petals spurred, two of the stamens appendaged, 117 Violaceae 

 62. Styles 2-5, flowers white or pink, ----- 78 Droseraceae 



62. Styles 3, flowers yellow, ------ 115 Turneraceae 



63. Stamens and petals 2, flowers dioecious, axillary; erect, ever- 

 green, aromatic shrubs, - 103 Empetraceae 



