MEDICINAL. PLANTS AND DRUGS, 179 



The seeds of the StryeJinos Potatorum^ though never used in medicine, 

 are highly valuable, and serviceable, to both Europeans and natives, from 

 the quality which they possess, of clearing muddy water, and rendering 

 it potable; to which the trivial name of the tree, first given to it by 

 Kcenig; alludes. One of the seeds is nibbed very hard, for a minute or 

 two, round the inside of an earthen vessel, into which the water is poured 

 and left to settle. In a short time, the impurities subside, and leave the 

 water perfectly limpid and tasteless*^^ 

 SiN^pis DicHOTOMA. (RoxB. MS.)' ScvsonP'^ K Sarshapa, S, 



Sp. Ch. — Dichotomous. Siliques cylindricj smooth, spreading. Beak straight 

 and tapering. Leaves stem-clasping; the lower somewhat Ijred. Superiour 

 ovate, lanceolate, entire. All are smooth> as are also the stem and branches, 

 (RoxB. MS.) 



Sin APIS Ramos J, (Roxb. MS.) iJaf/^) H. Edjicd, S: 



Sp, Ch. — Annual. Erect. Ramous. Siliques expanding, linear, vertically 

 compressed, smooth. Leaves petioled ; lower Ijred : superiour suBlanceoIate.' 

 (RoxB. MS.) 



Both these species of mustard are extensively cultivated in Bengal^ 

 on account of the oil procured from the seeds. In respe6l to medicinal 

 qualities, these seeds correspond exa61;Iy with the seed oi tliQ Sin apis 

 JVigra, (W.) and may be used, with equal advantage, as the latter, ei- 

 ther internally, as stimulants in rheumatic and paralytic affedlibns, or ex- 

 ternally for sinapisms. See Murray, II. 398. Woodville, III. 409. 



SjyiETENJA FEBniFuoA. (W.) Roliuna, W. Soi/mido, TaVrngs., 



All the four species of the noble genus Szvietenia, are lofty trees, re- 

 markable for, the excellent quality of their wood. The three following 



(') Surson, i^) Ra.ee. 



