io Introduction to Botany. 



Stamens io (rarely only 5), somewhat monadelphous at 



base, leaves 3-foliate, or more or less lobed and divided. 



GERANIACE^, page 70. 



Stamens 5, carpels 3, pod inflated. SAPINDACE/E, page 74. 

 (3) Ovary inferior, being more or less adherent to the calyx. 

 Ovary i-celled, many-seeded; 2 parietal placentae. 



SAXIFRAGACE^E, page 54. 

 Ovary 4-celled (sometimes 2-celled) ; pollen cobwebby. 



ONAGRACE^E, page 81. 



Ovary 2-5-celled ; petals 5; fruit a 2-several-celled pome; shrubs or trees. 



ROSACE^E, page 56. 



Ovary 2-celled ; style i; ovule i in each cell; petals 4; fruit a 2-seeded 

 drupe. CORNACE^, page 86. 



Ovary 2-celled; styles 2; i ovule in each cell; petals 5. 



UMBELLIFER^E, page 82. 



C. Corolla and calyx present, the petals more or less united (gamopetalous). 



(1) Stamens more numerous than the corolla lobes. 



Pistil i. 



Ovary i-celled, with i parietal placenta. LEGUMINOS^E, page 65. 



Ovary 3~i2-celled. 



Stamens free from the corolla, or nearly so. ERICACEAE, page 86. 



Stamens borne on the base of the corolla. EBENACE^E, page 90. 



Ovary 5-celled; stamens monadelphous at base. GERANIACE^, page 70. 



Pistils several, their ovaries united in a ring; the numerous stamens monadelphous. 



MALVACEAE, page 78. 



(2) Stamens as many as the lobes of the corolla, and opposite them. 



Ovary i-celled, several-seeded; style i. PRIMULACE^E, page 88. 



(3) Stamens of the same number as the corolla lobes (or fewer), and alternate with them, 

 (a) Ovary inferior, being surmounted by the other parts. 



Stamens united by their anthers into a ring; flowers in an involucrate 

 head. COMPOSITVE, page 116. 



Stamens separate, and free from the corolla, or nearly so. 



CAMPANULACE^:, page 115. 

 Stamens inserted separately on the corolla. 



Ovary 3-celled. Stamens 1-4. VALERIANACE^E, page 114. 



Ovary 2-5-celled. 



Leaves opposite, with stipules, or in whorls. 



RUBIACE^E, page no. 

 Leaves opposite, without true stipules. 



CAPRIFOLIACE^E, page 112. 



(3) Ovary superior, or free from the other parts. 

 Corolla irregular. 



Ovary 4-lobed, with i central style ; corolla labiate. 



LABIAT/E, page 99. 



Ovary 4-celled, but not lobed, with terminal style; corolla somewhat 



2-lipped. VERBENACE/E, page 98. 



Ovary i-celled, with free central placenta. Calyx and corolla 



2-lipped. Aquatic herbs. LENTIIULARIACE^:, page 105. 



Ovary i-celled, with 2 or 4 parietal placenta;; corolla more or less 



2-lipped. OROBANCHACE^:, page 106. 



