Halymenia:
Halymenia edulis:
Halymenia edulis (Stackh.) Agardh, Dumontiaceae: See Dilsea carnosa (Schmidel) Kuntze.
Halymenia palmata:
Halymenia palmata (L.) Agardh, Palmariaceae: See Palmaria palmata (L.) Kuntze.
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.