200 DICOTYLEDONS. POLYGONE.T^. RlimCJ'. 



at tlie margin, r.orvcs of the stipules distant, stem procumbent 

 herbaceous, p. 122. — Wuy-sides. 



■••■*■■ Leaves cordcde. (Fagopyrurn.) 



9. P. Fagopyrmn, leaves cordato-sagittate, stem nearly upright 

 without prickles, angles of the fruit even. p. 122. — Fields. 



K>. P. Convolvulus, leaves cordato-sagittate, stem tuining angu- 

 lar, segments of the j)erianlh bluntly keeled, p. 122. — Fields. 



2. RUMEX. 



Peria7ilh of 6 leaves. Sfa7n. 6. Sli/les 3. Nul triquetrous, 



covered by the 3 interior valviform leaves of the perianth. 



* Floicers all perfect ; valves granlferous. (Lapatha.) 



t Valves entire. 



1. R. aqiiaiicus, valves ovate entire bearing small grains, leaves 

 lanceolate acute, the lower ones cordate at the base. p. 112. 

 — River sides. 



2. R. crispjts, valves very large cordate entire reticulated bearing 

 grains, leaves lanceolate waved acute. /;. 112. — IVay-sides. 



3. R. sanguineus, valves oblong (small) entire, one at least bear- 

 ing a grain, leaves lanceolate somewhat heart-shaped, p. 112. 

 — Woods. 



it Valves toothed. 



4. R. ncuttis, valves oblong somewhat toothed all bearing grains, 

 leaves cordato-oblong acuminate, whorls leafy, p. i 12. — Pas- 

 tures. 



5. R. pulchcr, valves oblong toothed one of them principally 

 hearing a grain, radical leaves panduriform, stem smooth dif- 

 fuse. /.). 113. — JVay-sides. 



G. R. ollusfjolius, valves ovate toothed one principally bearing 

 a grain, radical leaves ovato-cordate obtuse, stem roughish. 

 p. 113. — IVay -sides . 



7. R. marilinnis, valves deltoid fringed with setaceous teeth 

 bearing grains, leaves linear, whorls much crowded, p. 113. 

 — Salt marshes. 



8. R. pahcstris, valves lanceolate with short setaceous teeth near 

 the base bearing grains, leaves linear-lanceolate, v.'horls di- 

 stant, p. 113. — Marshes. 



** Floivers polygamous ; valves graniferous. 



9. R. alpimis, flowers polygamous, valves 1 — 2 graniferous, 

 leaves ovato-cordate oJDtuse wrinkled. Decand. — Mountains, 

 rare ^. 



'^ This species, I am recently informed by Mr. Maughan, has been found 

 truly wild by Mr. G. Don on the Ochill-hllis, Clackmannanshije, far from 

 any cultivated o-round. 



