10 I. VEGETABLES.— LicHENEs. 



flavour, but must not be confounded with A. necator, or A. 

 theiogalus, both which have also yellow milk, and are very 

 poisonous. 



*A. suBDULcis ; — *'A, piperatus ; (an ingredient in the opia- 

 tum antituberculosum, which loses its acrid taste when dressed) 

 are eaten. 



*A. PROCERUS. Is the best and most usually eaten of those 

 whose footstalk is furnished with a moveable collar, and whose 

 gills do not melt into a black liquid ; none are known to be 

 poisonous. 



*A. MUscARiDS. Infused in milk, kills flies; juice rubbed 

 on bedsteads expels bugs: dried and powdered, gr. x to xxx 

 with vinegar, cathartic, sudorific ; applied externally to ulcers and 

 gangrenes. 



*A. BULBOsus, is a very active poison. 



*Jews ear. Auricula Judo:, Fungus sambuci, Peziza Auricula. 

 Grows on the elder ; used, soaked in milk or vinegar, as a gargle 

 in the quinsey, &c. 



*Oak leather ; Xylostroma giganteum. Found in the cracks 

 of oaks ; used in Ireland as a dressing for ulcers, and in Virginia 

 to spread plasters upon. 



3. LICHENES. 



The softer kinds are slightly bitter, and used in afliections of 

 the lungs : those resembling a chalky crust are used in dyeing. 



*Tree liver-wort, Lichen arborcus pullus, L. olivaceus, 

 Roborant, used in haemorrhages and old coughs. 



*Oak lungs. Tree lung-ivort, Hazel crottles, Pulmonaina 

 arborea, Muscus pulmonarius, Lichen arborion, L. pulmonarius. 

 Slightly bitter, opening, detersive, useful in diseases of the lungs ; 

 dyes wool of a durable orange colour ; yields a gum similar to 

 gum Arabic. 



^Iceland moss. Lichen^ Muscus Islandicus, M. catharticus, L. 

 Islandicus, Cladonia Islandica, Cetraria Islandic.a^ P, Dub. Slightly 

 bitter, used as food in Iceland, either made into bread or boiled 

 in water, the first water being rejected. The bitterness of this 

 substance is removed by maceration in cold water; demulcent, and 

 nutritious, it is easy of digestion, hence has been recommended in 

 phthisis. 



*LicHEN velleus. Has the same qualities. 



*Muscus cuMUTALis, Liclicn aphthosus, A drastic vermifuge. 



*Hairy tree-moss, Muscus, M, arhoreus, Lichen plicaius. 

 Astringent. 



