i8 



CHENOPODIACEAE. 



VOL. II. 



i. Atriplex hastata L. Halberd-leaved Orache. Fig. 1697. 



Atriplex hastata L. Sp. PI. 1053. 1753. 

 Atriplex patula L. Sp. PI. 1053. 1753. 

 Atriplex littoralis L. Sp. PL 1054. 1753. 

 A. patulum var. hastatum A. Gray, Man. Ed. 5, 409. 

 1867. 



Annual, green or purple, somewhat scurfy, at 

 least when young; stems erect, diffuse or ascending, 

 branched, i-3 tall. Leaves slender-petioled, 

 acuminate, linear-lanceolate to broadly triangular- 

 hastate, entire or sparingly toothed, i'-6' long, 

 truncate or narrowed at the base, the basal lobes 

 divergent, acute or acuminate; flowers in panicled 

 interrupted slender mostly leafless spikes, and usu- 

 ally also capitate in the upper axils ; fruiting bract- 

 lets united only at the base, fleshy, triangular or 

 rhombic, 3"-4" wide, their sides often tubercled; 

 radicle of the embryo ascending. 



In salt meadows and waste places, most abundant near 

 the coast, Nova Scotia to South Carolina, Ohio and Mis- 

 souri and in saline soil, Manitoba to British Columbia, 

 Nebraska and Utah and on the Pacific Coast. Also in 

 Europe. Consists of many races, differing in leaf-form 

 and in width of the bractlets. Lamb's-quarters. Fat-hen. Aug.-Oct. 



2. Atriplex rosea L. Red Orache. Fig. 1698. 



Atriplex rosea L. Sp. PI. Ed. 2, 1493. 1763. 



Annual, pale green and very scurf}', stem erect or de- 

 cumbent, usually much branched, i-2$ high. Leaves 

 ovate or rhombic-ovate, short-petioled or the upper ses- 

 sile, coarsely sinuate-dentate, obtuse or acute at the 

 apex, narrowed or subtruncate at the base, i'-3i' long, 

 i'-3$' wide, often turning red; flowers mostly in axil- 

 lary capitate clusters, often dense, or some in few ter- 

 minal spikes; fruiting bractlets broadly ovate or trian- 

 gular-hastate, strongly veined, mealy-white, dry, about 

 3" broad, united only at their bases, their margins toothed 

 or lacerate and sides tubercled. 



In waste places and ballast, Nova Scotia to New York and 

 New Jersey. Adventive from Europe. Aug.-Oct. 



3. Atriplex argentea Nutt. Silvery Orache. Saltweed. Fig. 1699. 



Atriplex argentea Nutt. Gen. i : 198. 1818. 



Atriplex volutans A. Nelson, Bull. Torr. Club 25 : 203. 

 1898. 



Annual, pale, densely silvery-scurfy or becoming 

 smooth, stem erect or ascending, bushy-branched, 

 6'-2o' high, angular. Leaves firm, triangular- 

 hastate or rhombic-ovate, mostly acute at the apex, 

 narrowed or subtruncate at the base, petioled or 

 the upper sessile, entire or sparingly dentate, \'-2.' 

 long, the basal lobes short ; flowers in capitate 

 axillary clusters, or the staminate in short dense 

 spikes; fruiting bractlets suborbicular, rhombic or 

 broader than high, 2" -4" wide, united nearly to 

 their summits, the margins sharply toothed, the 

 sides sometimes tubercled or crested; radicle of the 

 embryo pointing downward. 



In dry or saline soil, Minnesota to British Columbia, 

 Missouri, Kansas, Colorado and Utah. June-Sept. 



Atriplex expansa S. Wats., admitted into our first 

 edition, is not definitely known within our area. 



