POLYPETALAE. 77 
terior micropyle. Leaves pinnate. 
Tropics. Anacardiaceae. 
(4) Ovary deeply divided. Styles connate. 
Ovules with a ventral raphe and an ex- 
terlor micropyle. Leaves pinnate. 
Stamens 2-10. Simarubeae. 
84 (a) Stamens 1-10. 85. 
(2) Stamens more than 10. 95. 
85 (a) Herbs or undershrubs, 86. 
(2) Shrubs or trees. 89. 
86 (a) Sepals 4. Petals 4. Flowers regular, or 
nearly so. Stamens 6, four of which 
are longer than the two others, rarely 2- 
4. Ovary usually 2-celled. Cruciferae. 
(0) Sepals 5. Petals 5, more rarely 2-3. 87. 
87 (a) Ovary 2-celled. Anthers dehiscing by 
pores. Flowers irregular. Stamens 8, 
Polygaleae. 
(2) Ovary 3-5-celled. Anthers dehiscing by 
longitudinal slits. 88. 
88 (a) Leaves opposite or verticillate. Ovary 
3-celled. Stamens 2-6, or 10. Under- 
shrubs. Petals 5. America. 
Malpighiaceae. 
(4) Leaves alternate or radical. Ovary 5- 
celled, more rarely 3-celled, but then 
stamens 8. Stamens 8-10. Geraniaceae. 
