ll'2 HEXAND. TR1GYN. 



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

 at all enlarged. 



This is remarkably different in leaves from Ritmex. It is the Donia 

 mtpida of Brown, in the first ed. of Ross's I'oi/age to the Arctic Re- 

 gions, but was previously named Oxyrla by Decand. Wahlepberg 

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

 fructification removed. 



3. TKIGYNIA, 



16. RUMEX. 



* flowers all perfect. Inner and enlarged valves of the Perianth inUi a 

 tubercle (granift'roux) . (Lapalha or Dtocka)' 



t f 'alves entire. 



1. R. aquflticii? (great I Paler-dock), valves ovate entire bear- 

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

 date at the base. Light/, p. 190. E. B. t. 2104. 



HAB-. Ditches and by river-sides. Banks of the Clyde at old Kil- 

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

 near Meikleour, Perthshire, Mr. Murray. Fl. July, Aug. "}/ . 



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* 

 Lighlf. p. 188. E. JJ. t. 1998. 



HAB. Way-sides and near houses, frequent. FL June, July. If. . 



Two or three feet high. Lower leaves broader j all crisped at the 

 margin. Whorls of flowers very numerous and crowded. Distin- 

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

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

 an ovate orange-coloured grain, or tubercle. 



3. R. sangnimus (bloody -veined Doc/:), valves oblong (small) 

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

 what heart-shaped. E. ti. t. 1533. 



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



Abercorn woods, Edinb., Maugli. Bothwell woojls, sparingly, Hopk. 



Dupplin, Mr. Arnott and Mr. Greville. Fl. July. I/ . 

 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. 



f f Valves toothed. 



4. R. oc2ttus (sharp Dock), valves oblong somewhat toothed 

 all bearing grains, leaves cordato-oblong acuminate,, whorls 

 leafy. Lightf. p. KSS. E. B. L 724. 



HAH. Moist deep soils, under hedges and in pastures, frequent, Lightf. 



Fl. July. I/. 

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



