112 HEXAND. TRIGl'N. 



rather deep notch, and having at the base the pointed perianth not 

 at all enlarged. 

 This, is remarkably different in leaves from Rumex. It is the Dunia 

 sapida of" Brown, in the first ed. of Ross's Voyage to the Arctic Re- 

 gions, but was previously named O.njria by Decand. Wahlenberg 

 considers it a Rheum (or Rhubarb) with one third of the parts of 

 fructification removed. 



3. TRIGYNIA. 



16. RUMEX. 



* Flowers all perfect. Inner and enlarged valves of the Perianth wUIi a 

 tubercle {graniferous). {Lapatha or Docks)' 



t J'alves entire. 



1. R. aqjiatlcus {great IVater-dock), valves ovate entire bear- 

 ing small grains, leaves lanceolate acute, the lower ones cor- 

 date at the base. Ligliff. p. 190. E. B. t. 2104. 



Hab. Ditches aad by river-sides. Banks of the Clyde at old Kil- 

 patrick, Hopk. Side of the Tay, near Perth^ Mr. Brodie. Ditches 

 near Meikleour, Perthshire, iV/;. M;/n-rti/. F/. JuW, Aug. l/. 



The largest of our Docks, 3 — 5 feet high. Some leaves a foot and a 

 half long. Root large, very astringent. 



2. R. crispus {curled Dock), valves very large cordate entire 

 reticulated bearing grains, leaves lanceolate waved acute. 

 IJghlf. p. 1 88. E. B. t. 1998. 



Hab. ^Vav-sides and near houses, frequent. Fl. June, July. 11. 



Two or three feet high. Lower k^ores broader; «/' crisped at tlie 

 margin. Whorls oi Jiowers very numerous and crowded. Distin- 

 guished readily by the large, broadly cordate, reticulated, green, 

 membranous valves, some of which (not all, in my specimens) bear 

 an ovate orange-coloured grain, or tubercle. 



3. R. sanguineus {bloody-veined Dock), valves oblong (small) 

 entire, one, at least, bearing a grain, leaves lanceolate some- 

 what heart-shaped. E. B. t. 153o. 



Hab. Woods and waste places. King's park, Edinb., Mr. P. Neill. 



Abercorn woods, Edinb., Maugh. Bothwell woods, sparingly, Hopk. 



Dup]ilii), Mr . Arnott und Mr . Greville. FZ. Jvdy. "2/. 

 Two or three feet high, much branched. Leaves generally with red 



veins, sometimes green {Sm.). Flowers in small distant whorls, 



bare of leaves, except the lower ones. 



-|--j- Valves toothed. 



4. R. aatius {sharp Dock), valves oblong somewhat toothed 

 ail bearing grains, leaves cordato-oblong acuminate, whorls 

 leafy'. Uglitf. p. 188. E. B. t. 724. 



Hab. Moist deep soils, under hedges and in pa.stures, frequent, Lightf. 



Fl. July. 11. ^ 



IVhorls small, distant, each subtended by a small leaf; valves subden- 



I 



