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67. POLYGONACE.E. 
upjier 1. oblong or lanceolate. — E. B. 1999. — Height 2 — 3 feet. 
Whorls distant, leafless. Nut ellijrtical, acute. Distinguished 
by its obtuse radieal 1. and the prolonged often ligulate point of 
the petals. — Pastui-es 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 api)roximated 
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 mem- 
branous entire or wavy without tubercles, 1. lanceolate, lower 1. 
somewhat cordate with petioles “flat and margined above.” — 
E. B. S. 2698. R. domesticus Hartm., Fries, Koch. — Height 
3 — 4 feet. L. very large. Whorls crowded, mostly leafless, 
forming a large dense lobed panicle. Nut elliptical, acute. A 
very handsome plant. — Damp places in the north, preferring those 
liable to be flooded. Extending from York to the Butt of the 
Lewis. P. VII. VHI. E. S. 
10. R. Hydrolapathum (Huds.); enlarged pet. ovate-trian- 
gular nearly entire all tubercled, 1. lanceolate acute tapering below 
into a petiole which is flat and not margined above. — E. B. 2104. 
— St. 3 — 5 feet high. L. often more than a foot long. Whorls 
crowded, mostly leafless. Nut elliptical. — Ditches and river- 
sides. P. VII. VHI. Great fVater Dock. 
*11. R.alpinus (h.); enlarged pet. cordate-ovate membranous 
entire or denticulated without tubercles, 1. roundish-cordate obtuse 
with channeled petioles, upper 1. ovate. — E. B. S. 2694. — Whorls 
crowded, mostly leafless. Nut elliptical, acute. — Hellensburgh. 
Glen Luss. Dollar. Derbyshire. Formerly cultivated. P. VII. 
Monk’s Rhubarb. E. S. 
** El. dioecious. Herbage acid. Acetosella Tourn. Sorrels. 
12. R. acetosa (L.); enlarged pet. roundish-cordate entire 
membranous with a very minute tubercle at the base, sep. rejlexed, 
1. oblong sagittate, stipules laciniate-dentate. — R. Pseudo-acetosa 
Bert., E. B. 127.? — Height 1 — 2 feet. Whorls leafless. Nut el- 
liptical with acute angles. I noticed a very fleshy variety amongst 
rocks near the sea at Zennor, Cornwall. — Smith describes under 
this name the R. acetosa (Bert.), R. hispanicus (“Hunting,” 
