3 20 
PHARMACEUTICAL BOTANY 
flowers and oily seeds. Many are parasitic on the roots of other 
plants. 
Official drug Part used 
Oleum.Santali Volatile oil 
Santalum Album N.F. Heartwood 
Botanical name Habitat 
1 „ „ f India and East 
> Santalum album j Jiidies 
Fig. 180. —Aristolochia serpentaria. (Sayre.) 
VIII. Order Aristolochiales. —Aristolochiacece or Birthwort Family . 
—Herbs or twining semi-woody or woody plants, having more or less 
swollen nodes from which spring cordate or reniform or ovate leaves. 
Flowers regular (Asarum, etc.) or irregular {Aristolochia) often 
offensively smelling. Fruit a capsule. Seeds with copious albu¬ 
men and minute embryo. 
