REVISION OF RUMEX. 81 
examined from California (Bigelow, 1854; EHgloffstein, 
1854; Brewer, 1863, 405; Bolander & Kellogg, 1866; 
Vasey, 1880, 547, and 1881; Mrs. Bush, 1880; Pringle, 
1882; Parish, 1882 & 1884, 678, 1888; Brandegee, 1886; 
Hasse, 1888), Lower California (Palmer, 1889, 689, 829), 
Arizona (Palmer, 1867, 224; Lemmon, 1881, 281), Utah 
(Mrs. Thompson, 1872; Parry, 1874, 246; Palmer, 1877, 
422; Jones, 1880, 1643), New Mexico (endler, 1847, 758 ; 
Wright, 1852, 1782; Bandelier, 1882; Matthews, 1883), 
Indian Territory (Palmer, 1868, 291), and Texas ( Thur- 
ber, 1855, 140; Peverchon, 1882, 129).— Plate 18. 
+ + Valves small or medium sized (not over 10 mm.long), only mod- 
erately if at all cordate. 
a+ Valves round or very broadly ovate, flexible, low-reticulate: pedi- 
cels slender or capillary: stems glabrous except in #. crispus. 
7. R. occrpentauis, S. Wats.— Mostly two or three feet 
high, erect or abruptly ascending, rather stout, subsimple ; 
leaves somewhat fleshy, glabrous, glossy, bluish green, wavy 
margined, the lower ample or very large, ovate or mostly 
oblong-ovate, truncately cordate, the apex rounded to sub- 
acute ; panicle strict, dense and rosy in fruit, naked or with 
few small leaves below; whorls somewhat remote but over- 
lapping; pedicels 2 to 3 times as long as the fruit, very 
obscurely and not tumidly jointed below. the middle ; valves 
sometimes rosy, 5 to 6 mm. long (exceptionally 7x9 mm. ) 
deltoid-ovate, often only slightly cordate, remotely erose or 
denticulate, rounded or obtuse at apex, without callosities 
(but one midrib occasionally somewhat thickened ) ; achene 
2 to 2.5x4 mm.—Proe. Amer. Acad. xii. (1876), 253.—f. 
longifolius, Meisner, DC. Prod. xiv. 44, as to the American 
plant and its synonyms.— Damp or rich soil, Labrador to 
Alaska, south to Canada, California, and in the mountains 
to Texas. —Specimens examined from Labrador (Storer ; 
Allen, 1882, 64), Hudson’s Bay (Bell, 1884), Arctic 
America (2ichardson on Franklin Exp.), Canada (Allen, 
1881; Macoun, 1883), Saskatchewan (Bourgeau, 1858) and 
6 
