CHENOPODIACEAE. 373 



Leaves triangular-hastate, the lower only 1-2 times as long as wide. 



2. A. hasiata. 

 Planfvery scurfy; leaves rhombic-ovate, short-petioled. 3. A. rosea. 



Plants densely silvery ; leaves hastate, entire or little toothed. 



Staminate spikes dense, short; leaves petioled. 4. A. arge?itea. 



Staminate spikes elongated, interrupted ; upper leaves sessile. 



5. A. expansa. 

 Leaves oblong, densely silvery, entire ; plant of sea beaches. 6. A. arenaria. 



Perennial herbs or shrubs ; leaves oblong 01 oblanceolate, entire ; plants of the western 

 plains. 



Fruiting bractlets suborbicular, wingless, their sides crested or tubercled. 



7. A. Nut t allii. 

 Fruiting bractlets appendaged by 4 vertical reticulated wings. 



8. A. canes c ens. 



1. Atriplex patula L. Spreading Orache. (I. F. f. 1378.) Annual, dark 

 green; stem much branched, diffuse, ascending or sometimes erect, 3-10 dm. long. 

 Leaves lanceolate or linear-lanceolate, the uppermost nearly sessile, entire, spar- 

 ingly toothed, or 3-lobed below the middle, acuminate at the apex, narrowed or 

 cuneat at the base, 4-35 mm. wide; flowers in panicled interrupted slender mostly 

 leafless spikes, and usually also capitate in the upper axils; fruiting bractlets 

 united only at the base, fleshy, triangular or rhombic, 6-8 mm. wide, their sides 

 often tubercled ; radicle ascending. In waste places and ballast, N. S. and Ont. to 

 S. N. Y. and N. J. Naturalized from Europe. Native also of Asia. July-Aug. 



2. Atriplex hastata L. Halberd-leaved Orache. (I. F. f. 1379.) An- 

 nual, pale green, or purple, somewhat scurfy, at least when young; stem branched, 

 3-7 dm. tall. Leaves slender-petioled, acuminate, the lower broadly triangular- 

 hastate, entire or sparingly toothed, 2-10 cm. long, the basal lobes divergent, acute 

 or acuminate; upper leaves sometimes triangular-lanceolate; inflorescence as in 

 the preceding; the fruiting bractlets sometimes broader. In salt meadows and 

 waste places mostly near the coast, N. B. to S. C, and in saline soil, Manitoba 

 to Br. Col., Neb. and Utah. Also in Europe. Aug. -Oct. 



3. Atriplex rosea L. Red Orache. (I. F. f. 1380.) Annual, pale green, 

 very scurfy; stem usually much branched, 3-7 dm. high. Leaves ovate or rhombic- 

 ovate, short-petioled or the upper sessile, coarsely sinuate-dentate, 1-9 cm. long; 

 flowers mostly in axillary capitate clusters, or some in terminal spikes; fruiting 

 bractlets broadly ovate or triangular-hastate, strongly veined, mealy-white, dry, 

 about 6 mm. broad, united only at their bases, their margins toothed or lacerate 

 and sides tubercled. In waste places and ballast, N. S. to N. N. Y. and N. J. 

 Adventive from Europe. Aug. -Oct. 



4. Atriplex argentea Nutt. Silvery Orache. (I. F. f. 1381.) Annual, 

 pale, densely silvery-scurfy or becoming smooth; stem bushy-branched, 1.5-5 dm. 

 high, angular. Leaves firm, triangular-hastate or rhombic-ovate, mostly acute at 

 the apex, petioled or the upper sessile, entire or sparingly dentate, 1-5 cm. 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, 4-8 

 mm. wide, united nearly to their summits, the margins sharply toothed, the sides 

 sometimes tubercled or crested. In dry or saline soil, Minn, to the N. W. Terr., 

 Mont., Neb., Colo, and Utah. June-Sept. 



5. Atriplex expansa S. Wats. Sessile- leaved Orache. (I. F. f. 1382.) 

 Similar to the preceding but stouter, the stem erect, widely branched, sometimes 

 2 m. tall. Leaves thin, sessile or the lower very short-petioled, 1-4 cm. long and 

 nearly as wide at the base; fruiting bractlets broad, united nearly to their summits, 

 tubercled, their margins strongly toothed. W. Kans. (according to A. S. Hitch- 

 cock) to Chihuahua and N. Mex., west to Cal. July-Oct. 



6. Atriplex arenaria Nutt. Sea-beach Atriplex. (I. F. f. 1383.) Annual, 

 pale, densely silvery -scurfy; stem bushy-branched, 1-4.5 dm. high- the branches 

 ascending or decumbent, angular; leaves oblong, entire, short-petioled or sessile, 

 1-4 cm. long, the lateral veins few and obscure; flowers in axillary clusters much 

 shorter than the leaves; fruiting bractlets triangular wedge-shaped, broadest above, 

 4-6 mm. wide, united nearly to the several-toothed summits, their margins entire, 

 their sides reticulated, or sometimes crested or tubercled. On sandy sea beaches, 

 N. S. (?), Mass. to Fla. July-Sept. 



