CLASSIFICATION OF ANGIOSPERAIS. 



243 



and has an aromatic and pungent taste. It contains 0.5 per cent, 

 of a volatile oil, the principal constituent of which is cincol; a 



Fig. 132. Zingiber officinale, the rhizome of which constitutes the ginger of the market. 

 Entire plant showing rhizome and roots, a leaf-branch and a flower-branch, as also scars of 

 previous year's growth after decay of leaf- and flower-branches. A, entire flower; B, sec- 

 tion of flower showing beak-like appendage at the apex of the fertile stamen, which encloses 

 the style; C, three-parted labellum or irregular segment of corolla showing 2 tooth- 

 like staminodes (rudiments of stamens) at the base; D, the ovary with lower portion of 

 style and two epigynous, filiform processes which secrete nectar; E, apex of funnel-shaped, 

 fringed stigma. After Berg and Schmidt. 



pungent principle, galangol ; an acrid, pungent resin ; 25 per cent, 

 of starch ; and three crystalline principles. 



