9 
3. — Leaves with stipules. 6 
Leaves without stipules. 
Placentas in the axis. 4 
Placentas parietal. 
Petals definite, distinct from calyx, hooded. 
Loasaceje. p. 151. 
Petals indefinite, passing into sepals. CactacEuE. p. 152. 
4. — Leaves without dots. 5 
Leaves with transparent dots. 
Ovary one celled. Cotyledons not distinct. 
CHAMiELAU^ACiE. 
Ovary more than one celled. Cotyledons distinct. 
MyrTACEJS. p. 149. 
5. — Petals indefinite, numerous. Mesembryantitemaceai:. p. 156. 
Petals definite, few. 
Petals linear, reflexed. Alangiace^e. 
Petals round, concave. 
Style one, stigma having a round head. Barringtoniace.e. 
Styles and stigmas more than one. Philadelphace.<e. p. 134. 
6. — Carpels more or less distinct, or solitary, covered by the 
calyx. RosACEiE. p. 151. 
Carpels united into a solid pistil. 
Leaves opposite. RmzopiiORACEAt. 
Leaves alternate. Fruit a covered cup. Lecythidace.e. 
7. Ovary inferior, or partly so. 17 
Ovary wholly superior. 
Leaves with stipules. 12 
Leaves without stipules. 
Carpels combined into a solid pistil. 8 
Carpels more or less distinct or solitary. 
Carpels, each with a hypogynous scale. 
Crassulaceje. p. 137. 
Carpels without hypogynous scales. 
Carpels several, all perfect. Calycantiiace.cE. p. 130. 
Carpels solitary, or all but one imperfect. 
