CXXVI. 



PEUCEDANUM OSTRUTHIUM. 

 Great Masterwort. 



Class V. Pentandria.— Order IT. Digynia. 



Nat. Ord. Umbellifer^e. 



Gen. Char. See Uog's-Femiel (Peucedanum Officinale). 



Spec. Char. Leaves biternatc ; leaflets broadly ovate, 

 lobed, inciso-serrate, unequal at the base ; sheaths very 

 large. Fruit, with a very broad margin. — General in- 

 volucre wanting. 



SYNONYMES. 



f Imperatoria. Bauh. Pin. 156. Ger. Em. 1001. liaii Hist. 436. 

 Park. Theatr. 942. 



Smyrnion. Trag. 433. 

 Latin ....<( Imperatoria Ostruthium. Lin. Sp. PI. 371. Eng. Ft. ii. p. 78. 

 Eng. Bot. t. 1380. Dec. Prod. iv. p. 183. 



Selinum Imperatoria. Roth. Germ.i. 133. Crantz. Aust. 1746. 



Peucedanum Ostruthium. Koch. Umb. 95. 

 French. . . Imperatoire. 

 Italian. ..-x 



Port, and . > Imperatoria. 

 Spanish . . J 

 German . . Meisterwurz ; Kaiserwurzel ; Ostranz. 



Dutch Meesterwortel. 



Danish. .. Mesterurt. 

 Swedish .. Masterot. 



Description. — The root is perennial, thick, fleshy, knotted, 

 nearly tuberous, beset with long creeping fibres. The stem is 

 cylindrical, thick, fistulous, striated, erect, nearly simple, and 

 from one to two feet in height. The leaves are alternate, 

 petiolate, the lower ones biternate, the upper less compound ; 



