35 6 FLORA. 



8. Rumex Patientia L. PATIENCE DOCK. (I. F. f. 1306.) Perennial, 

 glabrous; stem erect, simple or sparingly branched, 6-15 dm. tall. Lower leaves 

 ovate-lanceolate, long-petioled, 1040 cm. long, the upper oblong-lanceolate or 

 oblong-elliptic, acute or obtusish, the uppermost lanceolate; fruiting panicle dense; 

 racemes erect, somewhat interrupted in fruit; flowers densely whorled; pedicels 

 slender, 2-4 times as long as the calyx-wings, jointed below the middle; wings 

 orbicular-cordate, 4-6 mm. long, one of them bearing a prominent ovoid callosity; 

 achene 3 mm. long, light brown, its faces concave, its angles obscurely margined. 

 In waste places, Me. and Ont. to Wis., south to Conn., Penn. and Kans. Also in 

 the Far West. Naturalized from Europe. May-June. 



9. Rumex Britannica L. GREAT WATER-DOCK. (I. F. f. 1307.) Peren- 

 nial, glabrous, dark green; stem stout, erect, more or less branched, 9-18 dm. 

 tall. Leaves lanceolate or oblong lanceolate, the lower 3-6 dm. long, long-petioled, 

 the upper 5-15 cm. long, short- petioled; fruiting panicle dense; racemes nearly 

 erect, more or less interrupted; flowers densely whorled; pedicels slender, con- 

 spicuously jointed above the base, j^-2 times as long as the calyx wings; wings 

 broadly cordate, 6 mm. long, irregularly denticulate, each bearing a large callos- 

 ity; achene ovoid-oblong, or oblong, 4 mm. long, pointed at both ends, brown, 

 its faces concave, its angles slightly margined. In swamps and wet soil, N. B. 

 and Ont. to Minn., N. J., Penn., 111. and Neb. July- Aug. 



10. Rumex occidentalis S. Wats. WESTERN DOCK. (I. F. f. 1308.) Per- 

 ennial, glabrous; stem strict, erect or nearly so, strongly grooved, 6-9 dm. high. 

 Leaves lanceolate or ovate-lanceolate, bluish-green, somewhat crisped and wavy- 

 margined, papillose, the lower 2030 cm. long, obtuse or subacute at the apex, 

 more or less cordate at the base, long-petioled, the upper smaller and usually 

 lanceolate; panicle rather dense, leafless or nearly so, erect; racemes usually not 

 interrupted; flowers loosely whorled; calyx 2 mm. long; pedicels obscurely jointed 

 below the middle, 2-3 times longer than the calyx-wings; wings triangular-ovate, 

 5-8 mm. long, somewhat dentate or undulate, bearing no tubercles; achene oblong, 

 4-5 mm. long, short-pointed, chestnut-brown. In wet places, Lab. to Alaska, Ont., 

 Rocky Mountains to Tex., and to Calif. May- Aug. 



11. Rumex crispus L. CURLED DOCK. (I. F. f. 1309.) Perennial, gla- 

 brous, dark green; stem rather slender, erect, 3-10 dm. tall. Leaves crisped and 

 wavy-margined, the lower oblong or oblong-lanceolate. 15-30 cm. long, long- 

 petioled, the upper narrowly oblong or lanceolate, 7-15 cm. long, short-petioled, 

 all cordate or obtuse at the base, more or less papillose; panicle rather open; 

 racemes simple or compound, by the elongation of the pedicels apparently contin- 

 uous in fruit; flowers rather loosely whorled; fruiting pedicels 1^-2 times as long 

 as the calyx-wings, jointed near the base; wings cordate, 3-4 mm. long, truncate 

 or notched at base, erose-dentate, or nearly entire, each bearing a tubercle; achene 

 2 mm. long, dark brown. In fields and waste places nearly throughout the U. S. 

 and southern British America. Often a troublesome weed. Naturalized from 

 Europe. Native also of Asia. June-Aug. Hybridizes with A', obtusifolius. 



12. Rumex conglomerates Murr. CLUSTERED OR SMALLER GREEN DOCK. 

 (I. F. f. 1310.) Perennial, glabrous, pale green; stem slender, erect, 3-9 dm. tall. 

 Leaves ovate, oblong or lanceolate, 2.5-14 cm. long, some of them slightly fiddle- 

 shaped, acute at the apex, obtuse at the base, crenulate and slightly crisped, peti- 

 oled; panicle loose and open in fruit; racemes leafy, slender, ascending, much 

 interrupted; flowers loosely whorled; pedicels shorter than or equalling the calyx- 

 wings, jointed near the base; wings ovate, fiddle-shaped, 3 mm. long, toothed 

 near the base, each bearing a large oblong callosity; achene less than 2 mm. long, 

 pointed, red. its faces convex. In waste places, Va. to S. Car. Also in Calif. 

 Naturalized from Europe. May-July. 



13. Rumex sanguineus L. BLOODY OR RED- VEINED DOCK. (I. F. f. 1311.) 

 Perennial, glabrous; stem slender, erect, 3-9 dm. high. Leaves oblong, oblong- 

 lanceolate or lanceolate, 2.5-15 cm. long, the lower long-petioled, cordate at the 

 base, acute or obtuse at the apex, usually red-veined, the upper short-petioled; 

 panicle loose; racemes slender, spreading, not leafy, interrupted; flowers loosely 

 whorled; pedicels slender, i-ij^ times as long as the calyx-wings, jointed at the 

 base; wings oblong, 3 mm. long, one of them bearing a spherical-oblong callosity; 

 achene less than 2 mm. long, sharp-pointed, dark red, its faces convex. In waste 



