CLXXXVI. 

 SIUM NODIFLORUM. 



Procumbent Water-Parsnep. 



Class V. Pentandria. — Order II. Digynia. 



Nat. Ord. Umbellifeiue. 



Gen. Char. Calyx of five teeth, or obsolete. Petals ob- 

 cordate with an inflexed point, or entire and ovate. 

 Fruit laterally compressed, or contracted and subdidy- 

 mous, crowned with the depressed disk and reflexed 

 styles. Carpels with five equal filiform ridges, of which 

 the lateral ones are marginal. Channels with one or 

 many vittae. Seed subterete. 



Spec. Char. Stem procumbent, rooting. Leaves pin- 

 nate; leaflets ovate, nearly equally serrated. Umbels 

 opposite the leaves, sessile. 



SYNONYMES. 



Greek. .... ctov. 



( Sium umbellatum repens. Ger. Em. 258. Raii Hist. 441 ; 

 Syn. 211. 

 Seseli nodifloram. Scop. Cam. ii. p. 353. 

 Helosciadum nodiflorum. Koch. umb. p. 126. 

 Sium nodiflorum. Lin. Sp. PL 361. Eng. Fl. ii. p. 57- 

 Eng. Bot. t. 659. 

 French. . . Berle nodiflore. 

 Italian . . Sio. 



Spanish . . Berra ; Berra postrada ; Sio ; Sion. 

 German . . Wassermerk ; Knotenblumigermerk ; Kleiner Eppich. 

 Dutch..,. Water-Eppe. 



Latin..,. 4 



v. 



Description. — The root is perennial, long, creeping, and 

 beset with numerous fibres. The stem is procumbent, rooting, 

 striated, jointed, thick, succulent, branched, usually floating on 



