SYNOPSIS OF ORDERS AND FAMILIES, ETC. VII 



Division I. Dieotyledonae 



Stems formed of bark, wood or pith and increasing in diameter 

 year after year by the addition of annual layers next to the bark ; parts 

 of the flowers mostly in 4's or 6's; embryo with 2 cotyledons; leaves 

 mostly net-veined. 



Sub-division I. Apetalae 



Flowers without a corolla and sometimes without calyx. 



Section 1. Flowers in unisexual ament (pistillate flowers sometimes 

 solitary in Quercus and Juglans); ovary inferior. 



OKDER SALICALES 



■Flowers without sepals or petals, unisexual, dioecious ; disk reduced 

 to a scale ; stamens 2 to indefinite ; carpels 2 ; ovary single, with parietal 

 placentae and indefinite ovules ; capsule with indefinite seeds; seeds small 

 with basal tufts of hair. Trees or shrubs with simple, alternate leaves ; 

 stipules present. 



Family 4. Salicaceae (Page 48) 



Flowers dioecious, without a calyx ; fruit a 2-4 valved capsule. 

 Leaves alternate, simple, deciduous, with stipules. 



ORDER MYRIC.4LES 



Flowers in catkin-like- spikes without sepals or petals, unisexual, 

 monoecious or dioecious; staminate 4 (2-16); carpels 2; ovary 1 celled 

 with a single, basal, erect, atropous ovule; fruit a drupe. Trees or 

 shrubs with simple, rarely divided leaves. 



Family 5. Myricaeeae (Page 66) 



Flowers monoecious or dioecious ; fruit a drupe, fleshy or dry; 

 leaves alternate, simple, punctate, persistent, rarely deciduous. 



ORDER JUGLANDALES 



Flowers in catkins without sepals or petals or with a simple 

 involucre, unisexual, monoecious ; stamens 3-40 ; carpels 2 ; ovary 

 inferior with basal, erect ovule; fruit winged, drupaceous or a nut. 

 Trees or shrubs with alternate, mostly compound leaves without stipules. 



