GOOSEFOOT FAMILY. 579 
4. Atriplex argéntea Nutt. Silvery Orache. (Fig. 1381.) 
Atriplex argentea Nutt. Gen. 1: 198. 1818. 
Annual, pale, densely silvery-scurfy or becom- 
ing smooth, stem erect or ascending, bushy- 
branched, 6’—20’ high, angular. Leaves firm, tri- 
angular-hastate or rhombic-ovate, mostly acute at 
the apex, narrowed or subtruncate at the base, 
petioled or the upper sessile, entire or sparingly 
dentate, 14/—2’ long, the basal lobes short; flowers 
in capitate axillary clusters, or the staminate in 
short dense spikes; fruiting bractlets suborbicu- 
lar, 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 down- 
ward. 
In dry or saline soil, Minnesota to the Northwest 
Territory, south to Nebraska, Colorado and Utah. 
June-Sept. 
5. Atriplex expansa S. Wats. Sessile- 
leaved Orache. (Fig. 1382.) 
ce, expansa S. Wats. Proc. Am, Acad. 9: 116. 
1874. 
Annual, densely silvery-scurfy, similar to the 
preceding species, but stouter, the stem erect, 
widely branched, sometimes 6° tall. Leaves thin, 
triangular-hastate or rhombic-ovate, toothed or 
entire, sessile or the lower very short-petioled, 
¥%/-14’ long and nearly as wide at the base; 
pistillate flowers in axillary clusters, the stami- 
nate mostly in slender interrupted solitary or 
panicled spikes sometimes 4’ long; fruiting 
bractlets broad, united nearly to their summits, 
tubercled, their margins strongly toothed. 
Western Kansas (according to A. S. Hitchcock) to 
Chihuahua and New Mexico, west to California. 
July-Oct. 
6. Atriplex arenaria Nutt. Sea-beach 
Atriplex. (Fig. 1383.) 
Alriplex arenaria Nutt. Gen. 1: 198. 1818. 
Annual, pale, densely silvery-scurfy, stem 
bushy-branched, 6/-18’ high, the branches as- 
cending or decumbent, angular, slender. Leaves 
oblong, entire, acute or obtuse and mucronulate 
at the apex, narrowed or rounded at the base, very 
short-petioled or sessile, 14/-1 4’ long, 22//-10’’ 
wide, the midvein rather prominent, the lateral 
veins few and obscure; flowers in axillary clus- 
ters much shorter than the leaves; fruiting bract- 
lets triangular wedge-shaped, broadest above, 
2//-3// wide, united nearly to the several-toothed 
summits, their margins entire, their sides reticu- 
lated, or sometimes crested or tubercled; radicle 
of the embryo pointing downward. 
On sandy sea beaches, Nova Scotia (?); Massa- 
chusetts to Florida. July—Sept. 
