OF THE WASATCH REGION 17 



or wings) and converging around the 3-angled achene. Style 

 3-parted; stigmas tufted, shield-shaped. 



Inner perianth-lobes entire, undulate or denticulate; 



never spiny-toothed. 



Margins of leaves not at all wavy or crisped. . 1. R. venosus 

 Margins of leaves more or less wavy or crisped. 

 Leaves broad. 



Joints of pedicels obscure 2. R. occidental^ 



Joints of pedicels swollen 3. R. Patentla 



Leaves narrow 4. R. crispus 



Inner perianth-lobes spiny-toothed 5. R. obtusifollus 



1. R. venosus Pursh. Veined Dock. Stems ascending or 

 erect, from running rootstalks. Leaves smooth, rather thick, 

 usually light green. Fruit very showy, resembling that of 

 some Begonias. Valves large, entire, without tubercles, cor- 

 date; waxy and bright rose-color, fading to light-brownish. 

 In saline soil. May-June. 



2. R. occidentalis "Wats. Western Dock. Stems smooth, 

 stout, erect, 2-3 ft. high; more or less purple-tinged. Leaves 

 large, glossy, elliptical, with cordate or subcordate base. Fruit 

 small (y^-Vs inch in diameter), on pedicels 2-3 times its length. 

 Valves sometimes rosy; broadly ovate or nearly round, often 

 denticulate; all without tubercles or one of them with a 

 thickened midrib; their apices obtuse. In moist or wet places. 

 May-August. 



3. R. I'atentia L. Patience Dock. A perennial weed about 

 as tall as No. 2, with green and glabrous stems. Leaves dark- 

 green; lanceolate or elliptical with rounded or decurrently- 

 acute base. Fruit about the size of that of No. 2, on pedicels 

 nearly twice its length. Valves heart-shaped, nearly or quite 

 entire; one of them bearing a small tubercle, or its midrib 

 merely thickened at base. In moist or wet places. May-August. 



4. R. crispu* L. Yellow Dock. Stem smooth, erect, about 

 2 ft. high. Leaves dark-green; lanceolate with strongly- 

 crisped margins. Flowers in wand-like racemes; pedicels con- 

 spicuously swollen at the joints Fruit -smaller than that of 

 No. 2. Valves greenish, or red at the , tubercles; round-heart- 

 shaped, obscurely denticulate or entire; usually all of them 

 bearing prominent tubercles. A common weed of waste and 

 cultivated ground, especially near irrigation ditches. May- 

 August. 



5. R. obtuslfolitis L. Bitter Dock. Stem roughish, erect, 1-2 

 ft. high. Leaves membranous; the lowest ovate-heart-shaped, 

 mostly obtuse; the upper oblong-lanceolate, acute. Fruit 

 smaller than No. 2. Valves ovate-halberd-shaped, spinulose on 

 the margin; one of them bearing a tubercle. In moist places, 

 especially along irrigation ditche^. June-August. 



ORDER CHENOPODIALES. 



CHENOPODIACE.ffi. Goosefoot Family. 



Herbs (often fleshy), sometimes shrubby. Leaves 

 usually simple, alternate, exstipulate (reduced to scales 

 or ridges in some salt-desert species). Flowers small 



