TAXONOMY 
311 
enclosing a single upright seed with abundant perisperm (from 
megasporangial tissue) and reduced endosperm (from matured 
embryo sac). 
Official drug 
Cubeba 
Piper 
Kava N.F. 
Matico N.F. 
Part used Botanical name Habitat 
Unripe fruit Piper Cubeba Borneo, Java 
Sumatra 
Unripe fruit Piper nigrum Cochin-China, 
India 
Rhizome and roots Piper methysticum South Sea Islands 
Leaves Piper angustifolium Peru, Bolivia 
Pig. 174.—Willow ( Salix ). Leafy branch, bearing two pistillate catkins, 
Staminate flower above, at the left; pistillate flower below, at the right. (Gager 
after Britton and Brown.) 
II. Order Salicales. —Salicacetz or Willow Family .—Shrubs or 
trees of temperate or cold regions, with upright woody stems. Bark 
often containing bitter principles (Salicin etc.). 
Leaves alternate, simple, entire, stipulate; stipules rarely green, 
persistent, usually functioning as winter bud-scales and falling in 
spring. 
