POLVGONEJE. 
255 
at the base. — E. B. 724. R. aculus Sm., L. ? See Prim. Fl. Sam. 
p. 85. R. ylomeratus R. Icon. f. 552. — Nut ovate, acute. Enlarged 
pet. broadest near the base, the sides nearly parallel. — Wet places. 
P. VI.— VIII. 
4. R. sanguineus (L.) ; enlarged pet. narrowly oblong obtuse en- 
tire only one bearing a tubercle, whorls distant leafless, 1. ovate- 
lanceolate, lower 1. cordate at the base. — E. B. 1533. — Nut 
ovate-elliptical, acute. Enlarged pet. broadest above their middle. 
A very few of the lower whorls often each accompanied by a 
small leaf. Veins of the 1. bright red. — fi. viridis (Sm.) ; veins 
of the 1. green. R. viridis Sibth. R. Nemolapathum Ehrh. — 
Woody places, rare. /3. Woods and road-sides, more frequent. 
P. VII. 
5. R. pulcher (L.) ; enlarged pet. triangular -ovate reticulated 
with raised nerves toothed below one principally tubercled, lower 
I. fiddleshaped or cordate-oblong obtuse, upper 1. lanceolate acute, 
st. procumbent, branches spreading. — E. 5.1576. — St. straggling. 
Whorls distant, leafy. Nuts ovate, acute. — Dry waste places. 
P. VIII. IX. Fiddle Dock. 
6. R. obtusifolius (L.) ; enlarged pet. ovate- or oblong-triangular 
obtuse toothed below prolonged above into an oblong or ligulate en- 
tire point one principally tubercled, lower I. cordate- ovate obtuse, 
upper 1. oblong or lanceolate. — E. B. 1999. — Height 2 — 3 feet. 
Whorls distant, leafless. Nut elliptical, acute. Distinguished 
by its obtuse radical 1. and the prolonged often ligulate point of 
the petals. — Pastures and waste ground. P. VII. — IX. 
7- R. pratensis (M. and K.) ; enlarged pet. unequal cordate 
dilated and toothed at the base with a small entire triangular point 
one principally tubercled, 1. oblong-lanceolate acute, lower 1. 
slightly cordate below. — E. B. S. 2757- — Whorls approximated 
but not crowded, mostly leafless. " Nut elliptical." One of the 
enlarged pet. larger than the others, sometimes all 3 are equally 
tubercled.— Marshy places, rare. P. VII. E. 
8. R. crispus (L.) ; enlarged pet. cordate entire or crenulated 
one principally tubercled, 1. lanceolate acute wavy crisped. — E. B. 
1998. — Height 2 — 3 feet. Nut elliptical. Enlarged pet. equal, 
sometimes all equally tubercled. — Road-sides, fields, &c. P. 
VI.— VIII. Curled Dock. 
9. R- aquaticus (L.) ; enlarged pet. broadly cordate membranous 
entire or wavy without tubercles, 1. lanceolate, lower 1. somewhat 
cordate with channeled petioles. — E. B. S. 2698. — Height 3 — 4 
feet. L. very large. Whorls crowded, mostly leafless, forming 
a large dense lobed panicle. Nut elliptical, acute. A very hand- 
some plant. — Damp places in the north, preferring those liable 
to be flooded. Extending from York to the Butt of the Lewis. 
P. VII. VIII. E. S. 
