Iceland moss n. (Bot.) A kind of lichen (Cetraria Icelandica) found from the Arctic regions to the North Temperate zone. It furnishes a nutritious jelly and other forms of food, and is used in pulmonary complaints as a demulcent.
... THE SICK-ROOM).—Iceland moss has been in the highest repute on the Continent as the most efficacious remedy in incipient pulmonary complaints; combined with chocolate, it will be found a nutritious article of diet, and may be taken as a ... — Enquire Within Upon Everything - The Great Victorian Domestic Standby • Anonymous