Spices and How to Know Them

by Walter M. Gibbs

CINNAMON STARCH

[Figs. 22] and [23] have an extremely irregular polyhedral or distorted granules, often united in groups with smaller granules and adherent to the larger ones. In size, it varies from .001 to .025 millimeter, averaging nearly the latter size. In some granules the hilum can be distinguished, but no rings; it is readily detected with polarized light.