LICHEN. 237 



LE P ARGY RE A, Raf. 1816. Silverbush, ffippophae 

 canadensis, L. Sheperdia, N. Berries purgative. 

 LEPIDIUM VIRGINICUM, L. Peppercress. From 



Canada to Guyana, probably many sp. blended, forming 



my G. Dikptium^ F 



dm 



and precox 2 sp» there ascertained, equiv. Eaten as 

 cresses. All acrid, diureticj antiscorbutic, antiscrofu- 

 lous : used in scurvy, dropsy, asthma, scrofula, hernia, 

 gravel, &c-as a diet. 



LEPTAMNIUM VIRGINIANUM, RafJSlO. Oro^ 

 banchedOyh. Epifagus! N. 1818. Cancer root^ Beech 

 drops. Root and stem astringent, bitterish, nauseous, 

 known to Schoepf as useful incancerg : base of Martin's 

 powders (with white arsenic, sulphur and Mamintulus) 

 a painful remedy for curing cancers by application, but 

 hurtful in scrofula and scrofulous cancers, A sirup of 

 it united to Iris^ Sanguinaria and Polygonum used by 

 empirics for sore mouth, cancer in the mouth, dysentery, 

 &G. Plant parasite on Beech roots. 



LESKEA. Several sp. subastringent Mosses. 



LIATRIS, Auct. Throatwortj Sawort^ Button Snake 

 root. 25 sp. all medical eq. made 2 by L. Serratula 

 spicata and scarfosaJ Many vulgar names, Backache 

 root, DevUsbite, Rattlesnake master^ Blazing Star, Prai- 

 rie Pincs^ Gayfeather, Rough root, &c. All have a tu- 

 berous medical rout, acrid, bitterish, pungent, spicy, 

 smellins: like turpentine or juniper, holding a peculiar 

 balsamic resin, but no oil : properties partly soluble in a 

 watery decoction, wholly in alcohol- Mi>st powerful diu- 

 retir^, acting mildly, nmy be used ad libitum : 'd\bo di»- 

 cutient, lonfr. diaphoretic and deobstruent. Veiy useful 

 in dropsv, gonorrhea, ani^ina, croup and hives, sore- 

 throat, >^crufula, giaveKpains in the brea^^t, after pains ot 

 womon and bites of snakes, buth internaily and topjcall v. 

 The X odorathmna or Vanilla lenf, used hke the Pa- 

 ^:icria trinervia or Trevel of Cuba, to perfume Havana 



T/U JIEN. L- Prolific tribe of ^.anf. now dm led m 



rnaiiv <r,.„era ; Treemoss, Rochno.., Livera _L /.iver- 

 moss, Icdmid mass. Lungwort, Orchd, &c. Many u - 

 fu! and luedicaU the Z. t$landic% pulmonarmi an^ 

 CQCci^^rus chie&^ cd as tonic aiid pectoral, mucibj- 



