8 
19. — Stamens arranged in a column. Sterculiaceae. p. 75. 
Stamens not columnar. 
Stamens opposite the petals. Vitaceae. p. 85. 
Stamens alternate with the petals, or numerous. 
Tiliaceae. p. 75. 
20. — Gynobase fleshy. Ociixaceae. 
Gynobase dry. 
Leaves regularly opposite. Zygopiiyllaceae. 
Leaves mostly alternate. 
Fruit beaked. Geraniaceae. p. 77. 
Fruit not beaked. Oxalidaceae. p. 77. f 
I, b. CALYCIFLORAL EXOGENS. Polypetalous. - 
Stamens less than twenty. 7 
Stamens more than twenty. 
Ovary inferior or partially so. 3 
Ovary wholly superior. 
Leaves with stipules. 2 
Leaves without stipules. 
Carpels combined into a solid pistil, with more than one pla- 
centa. 1 
Carpels more or less distinct, or solitary. 
Ovules suspended or ascending. Rosaceae. p. 115. 
Ovules attached by a cord to the base of the cell. 
Anacardiaceae. p. 84, 
1.- Calyx of two sepals cohering at base. 
PORTULACACEAE. p. 69. 
Calyx of more than two sepals, tubular, permanent. 
Lytiiraceae. p. 149. 1 
2. — Carpels combined into a solid pistil, with more than one pla- 
centa. Placentas in the axis. Portulacaceae. p. 59. 
Carpels more or less distinct or solitary. 
Calyx with the odd lobe inferior or anterior. 
Leguminos.e. p. 94. 
Calyx with the odd lobe superior or posterior. 
Rosaceae. p. 115. 
