Fig. 154. Porphyra laciniata.
Botanical name:
a. Small portion of the front, showing the quaternate granules (magnified).
This image is from Porphyra 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.