Synopsis of the Natural Orders. 



Class I. -DICOTYLEDONS. 



Stem, when perennial, with pith, rings of wood and bark. Leaves usually 

 net- veined. Parts of flower arranged in a quaternary ( ^) or quinary ( j^J) 

 manner. Embryo with two seed-lobes or cotyledoTis. 



A — Polypetalae 



(Flowers with both calyx and corolla, and petals not united). 



L ^\5B-Ci.kss.— THALAMIFL0RJ£, stamens inserted on the receptacle 

 {hypogynous) f7-ee from the calyx, ovary superior. 



* Pistil apocarpous, of one or more carpels. 



1. Ranunculaceae. 



(Ranunculus Family). Herbs. Stamens many (oo). Petals many (oo ). 



2. Berberidaceae. 



(Barberry Family). Shrubs. Stamens definite. 

 ** Pistil syncarpous. 



t Ovules parietal. 



3. Nyraphaeaceae. 



(Water-lily Family). Aquatic plants. Petals and stamens 00 . 



4. Papaveraceae. 



(Poppy Family). Herbs with milky juice, flowers regular. Sepals 2, 

 deciduous. Petals 4. Stamens 00 . 



5. Fumariaceae. 



(Fumitory Family). Herbs with irregular small flowers. Stamens 6. 

 with united filaments (diadelphous). 



6. Cruciferas. 



(Crucifer Family). Herbs with regular flowers. Petals 4. Stamens 6 

 (tetradynamous). 



A 



