XII SYNOPSIS OF ORDERS AND FAMILIES, ETC. 



Family 27. Staphyleaceae (Page 223) 



Flowers perfect, regular, 5-merous; disk cup-shaped; carpels 

 2-: > >, free above, with many to few pendulous ovules; fruit a capsule, 

 berry, or drape-like. Trees or shrubs usually with opposite, com- 

 pound leaves with stipules. 



Family 28. Aceraceae (Page 226) 



Flowers mostly perfect or polygamous, calyx and corolla and 

 stamens 4-10; carpels 2, each with 2 straight ovules; fruit a samara. 



Trees or shrubs with opposite, simple, rarely compound leaves. 



Family 29. Hippocastanaceae (Page 230) 



Flowers perfect or unisexual, irregular; sepals 5; petals 4-5; 

 stamens 4-5; carpels 3, each with 2 ovules; fruit a 3-valved capsule; 

 seeds large. Leaves palmate. 



Family 30. Sapindaceae (Page 233) 



Flowers unisexual or polygamous; sepals 5; petals 4 or 5 or 

 wanting; stamens usually 10; disk fleshy; ovary superior, 3 celled, 

 each 1 ovuled. Fruit various. Leaves usually alternate, compound. 



ORDER RHAMNALES 



Flowers cyclic, 4 or 5-merous, sometimes without petals; stamens 

 in 1 whorl, opposite the petals, hypogynous or perigynous; carpels 2-5 

 with 1 or 2 erect ovules with dorsal, lateral or ventral raphae. Shrubs 

 or trees or climbers. 



Family 31. Rhamnaceae (Page 239) 



Flowers perfect or polygamous, regular; sepals, petals and 

 stamens 5 or 4 ; ovary 2-4 celled ; ovules solitary in each cell. 

 Fruit a drupe, capsule, or winged nut. Trees or shrubs, rarely herbs. 



ORDER MALYALES 



Flowers perfect, rarely unisexual, cyclic, both calyx and corolla 

 present; sepals valvate ; stamens indefinite or in 2 whorls, the outer one 

 suppressed or reduced to staminodes, the inner one frequently increased 

 in number, and cohering; carpels 2 to indefinite, with 1-indefinite 

 OVUlee; ovary superior. Trees or woody plants. 



