Botanical name: 

Irish Moss, Chondrus crispus, has been known from an early period, its use being chiefly as a domestic medicine. The London or British Pharmacopeia never gave it a position. Todhunter at Dublin 1831, introduced it to the notice of the medical profession. The method of its employment is yet in decoction or infusion, no attempt being made to improve upon its domestic form.

The History of the Vegetable Drugs of the U.S.P., 1911, was written by John Uri Lloyd.