HEXANDRIA. TRIGYNIA. Rumex. 
453 
DIGYNIA. 
(OXY'RIA. Calyx two-leaved: Petals two: Seed one, com¬ 
pressed, winged. 
O. renifor/mis, 
E. Bot. 910— El. Dan. 14— Plulc. 252.2 — H. Ox. v. 36. row 3.f. 3 — Pet. 3. 4. 
Stem solitary, erect, a span high, striated, panicled, almost leafless. Leaves 
nearly all radical, on longish footstalks, kidney-shaped, bright green, 
somewhat wavy, abrupt, with more or less of a central cinus; ribs all 
radiating from the insertion of the foot-stalk. Panicle erect, branched, 
twice as tall as the leaves. Bracteas sheathing, membranous. Flowers 
small, drooping, on capillary, whorled, simple stalks. Anth. and stigm. 
reddish, as is the wing of the seed. Sm. Remarkably differing in leaves 
from Rumex. Hook. Sir J. Hill had the merit of first discriminating this 
genus. 
Kidney-shaped Mountain-sojrrel. Welch Sorrel. Gaelic: Sealb- 
hag-namfiadJi. O. reniformis. De Cand. Hook. Rumex digynus. Linn. 
Huds. Lightf. With. Willd. Gaertn. FI. Brit. Rheum digynum. Wahlenb. 
Acetosa rotundifolia, Sec. R. Syn. 143. On the summits of lofty mountains 
of England, Wales, Scotland, and Ireland, abundant. P. July. E.) 
TRIGYNIA. 
RU'MEX.* (Calyx three-leaved : Petals three, closing : Seed 
one, triangular, inclosed in the valviforni leaves of the 
blossom. E.) 
(1) Flowers all perfect; petals entire, beaded. 
(R. acu'tus. Leaves oval-spear-shaped, acuminate: lower ones heart- 
shaped at the base, with unequal lobes. 
Curt. 181 — j E. Bot. 724 — Blackw. 491 — Kniph. 3 — Fuchs. 461. 
Stem two to three feet high, angular, furrowed, leafy. Leaves varying 
much in breadth. Racemes frequently leafy, but not invariably so ; in 
general structure slender. Whorls small, numerous, more or less distant ; 
Jlowers pendulous. Valves small. 
Var. 1. Fol. sang. Leaves veined with crimson juice, (as are sometimes those 
of R. palustris and R. mariiimus) not curled, but occasionally wavy : the 
lower ones unequally lobed at the base, but not decidedly heart-shaped. 
Outer valve of the flower bearing a large red tubercle, the other some¬ 
times having a smaller grain. Bloss. reddish. Whorls small, distant, 
not so generally leafy. 
* (So named by the Romans from a sort of spear, the shape of which the leaves of 
several species of the present genus nearly resemble, E.) 
