Chenopodiaceae 143 
BB. Leaves spatulate, acute; flowers 1020 in a cluster; pericarp readily separat- 
ing from the seed. E. M. spatulata Gray (Spatulate Monolepis) 
ATRIPLEX ATRIPLEX 
Herbs or low shrubs, annual or perennial, often scurfy or silvery-canescent. Leaves 
alternate or some of them opposite, sessile or petioled. Flowers monoicous or dioicous, 
small, green, in axillary clusters; clusters spikes or head-like. Staminate flowers bract- 
less: perianth 3—5-parted: stamens as many as the perianth-segments; filaments distinct 
or united at base: rudimentary ovary sometimes present. Pistillate flowers subtended by 
2 bractlets; mature bracts enlarged, more or less united, margin entire or toothed, surface 
smooth or crested or tubercled or winged: perianth none: ovary globose or ovoid: stigmas 
2. Utricle completely or partly enclosed by the 2 bractlets. (Gk. atraphaxos—=not 
nourishing; they are weeds. ) 
A. Herbs, annual; leaves not entire in most. 
B. Plants glabrous or nearly so. 
C. Leaves linear or lanceolate, rarely subhastate or toothed. 
D.  Bracts linear. W. 
A. zosteraefolia, Wats. 
DD. Bracts ovate-triangular. W. (A. patula of How. FI.) 
A. patula littoralis Gray (Seaside Atriplex) 
CC. Leaves ovate-triangular, mostly hastate, mostly dentate. E. (A. hastata. ) 
A. patula hastata Gray 
BB. Plants densely scurfy and silvery. 
E. Leaves 4—8 mm. long; fruiting bracts not margined nor appendaged. E. 
A. pusilla Wats. 
EE. Leaves 12—100 mm. long; fruiting bracts margined or appendaged. 
F. Fruiting bracts 2—3 mm. long; their apex hardly indurated, truncate, 3- 
toothed; their sides not appendaged. E. 
A, truncata Gray 
FF. Fruiting bracts 4—8 mm. long; their apex indurated, rounded or lobed, 
more than 3-toothed; their sides appendaged. E. 
A. argentea Nutt. (Silvery Atriplex) 
AA. Shrubs or shrubby at base, perennial; leaves entire. 
G. Leaves oblong-spatulate to narrowly oblanceolate, |2—50 mm. long; bracts 2—4 
mm. long. E. A. nuttallij Wats. 
GG. Leaves ovate to obovate, 4—17 mm. long; bracts 8—13 mm. long. E. 
A. confertifolig Wats. 
GRAYIA (Eremosemium) HOP SAGE 
Shrubs, low, somewhat spiny. Leaves alternate, entire. Flowers monoicous or 
dioicous, small, in axillary clusters or terminal spikes. Staminate flowers bractless: perianth 
mostly 4-parted: stamens 4—5, central. Pistillate flowers enveloped in bracts; bracts 
obcompressed, membranous, united into a sac; sacs orbicular, flattened, with small 
naked orifice at apex, adherent to each other below, becoming enlarged and reticulate- 
veined and vertically wavy-margined: perianth none: styles 2, slender, at first exserted. 
: (Honor of Asa Gray, an American botanist.) E. 
G. spinosa Moa. 
