EtTMEX. 
1. RuMEX. Perianth G-parted; 3 innevsegmeTxts (pet.) \a,Tge 
with fr., connivent. Stam. 6, disposed in pairs. Styles 3. 
Stigmas multifid. Nuttriquetrous^coveredbytheenlarged 
inner segments of perianth ; embryo lateral. 
2. OxYEiA. Perianth A-jmrted; 2 inner segments (pet.) 
larger. Stam. 6. Stigmas 2, multifid. Nut compressed, 
with a membranous wing, larger than the persistent seg- 
ments of perianth ; embryo central. 
3. Polygonum. Perianth 5-parted. Stam. 5 — 8. Styles 
2 — 3. Stig. capitate. Nut trigonous or compressed ; 
embryo lateral, incurved ; cotyledons not contorted. 
" [4. Fagopyrum. Perianth 5-parted. Stam. 8. Styles 3. 
Stig. capitate. Nut trigonous; embryo central ; cotyledons 
large, leajlike, jjlicate-tivisted.] 
1. Ru'mex Linn.^ Dock. 
* Fl. perfect. Herbage not acid. L. not hastate. 
1. R. marit'imiis (L.) ; enlarged pet. rhontboidal narrow, each 
with a lanceolate entire point a prominent narrow oblong tuber- 
cle and on each side 2 setaceous teeth as long as the pet., whorls 
croivded many-fiowered leafy, 1. all linear-lanceolate narrowed 
at both ends. — E. B. 725. — Nut very small : faces elliptic. — 
Marshes principally near the sea. P. or B. VII. VIII. Golden 
Dock. E. S. I. 
2. R. limdsus (Thuill.) ; enlarged pet. ovate-oblong, with a lan- 
ceolate entire point a prominent narrow oblong tubercle and on 
each side 2 or 3 setaceous teeth shorter than the pet., ivhorls 
distant many-flowered leafy, root-1. narrowly lanceolate rounded 
or slightly decurrent below.— Cttri. i. 63. Sy. E. B. 1213. R. 
palustris (Sm.). — Nut 3 times as large as that of R. maritimus ; 
faces ovate. Upper 1. linear-lanceolate, narrowed below. — 
Marshy places, rare. -P. VII.— IX. E. S. I. ? 
3. R. conglomerdt us (Murr.) ; enlargedpet. linear-oblong sub- 
acute, each bearing a large tubercle and entire or obscurely 
toothed at the base, u'horls distant leafy, 1. oblong pointed, lower 
1. cordate or rounded at the base. — R. acutus Sm. E. B. 724. 
1 Hybrids are frequent in this genus.— H. & J. G. 
