658 ORD. XL. Oleracece. 
RUMEX HYDROLAPATHUM. WATER DOCK, 
Sec SR ST St Aa ae ene 
SYNONYMA. Hydrolapathum. Pharm. Edinb. Lapathum. 
aquaticum, folio cubitali. Bauh, Pin. p. 116. Hydrolapathum 
magnum. Gerard. Emac. p.389. Hydrolapathum majus. Park. 
Theat. p. 1225. Rati Hist. p. 171. . Synop. p. 140. §. 1. Lapa- 
thum foliis longé lanceolatis, paniculis densissimus. Hall. Stirp. 
Helv. n. 1588. 2. Hydrolapathum. Hudson. Flor. Ang. p. 154. 
Withering. Bot. Arr. p. 374. Relhan. Flor. Cant. p. 149. : 
Class Hexandria. Ord. Trigynia. Lin. Gen. Plant. 451 
Ess. Gen. Ch. Cal. 3-phyllus. Petala 3, conniventia. Semen 
unicum triquetrum. 
Sp. Ch. R. floribus hermaphroditis: valvulis integris graniferis, 
foliis lanceolatis acutis. Hudson, 1. c. 
THE root is perennial, large, thick, externally black, internally 
whitish : the stem is erect. channelled, branched, green, and rises 
about five feet in height: the upper leaves are leng,-narrow, and 
on the flower-spikes linear and pointed; those at the bottom of the 
stem are near a foot and a half in length, of a narrow ovate form, 
somewhat indented ‘at the edges, and stand upon long strong 
channelled footstalks: the flowers are numerous, and hang in 
whorled spikes upon slender peduncles: the calyx is divided into 
_ three narrow pointed permanent segments: the corolla consists of 
three petals, which are ovate, narrow, pointed: the stamina are 
six, short, slender, and furnished with erect.double antherx : the 
germen is turban-shaped, triangular, and supports three reflexed 
styles, terminated by rough glandular stigmata: the capsule is 
formed of the three petals, which by approaching each. other 
assume a triangular form, and in this state are called valves; 
———EE 
