Fig. 308. Cells of the Potatoes.
a. Cell before boiling, containing the starch particles.
b. Cell of a mealy potato after boiling.
This image is from _ in Pereira's Elements of Materia Medica and Therapeutics, 1854.
A herbal distance course
Henriette's herbal is one of the oldest and largest herbal medicine sites on the net. It's been online since 1995, and is run by Henriette Kress, a herbalist in Helsinki, Finland.