596 CHENOPODIACEX ATRIPLEX 
and leafy: leaves rather thick, deltoid or triangular-ovate or subrhombic, 
often subhastate 14-2 inches long, acute or obtuse, opposite and petioled or 
the upper sessile and alternate: flowers in capitate axillary clusters or the 
staminate in short dense spikes: fruiting bracts shortly pedicelled, united 
nearly or quite to the top, more or less acutely and deeply toothed, the 
sides usually tubercled or crested. Dry or saline soil, eastern Oregon to 
California and Nebraska. 
§ 3 More or less shrubby perennials, closely appressed-scurfy, 
mostly divecious. Leaves mostly alternate. Radicle usually 
superior. 
A. Nuttallii Watson Proc. Am- Acad. ix, 116. Stems erect, shrubby 
1-3 feet high branching mostly from the base, bark nearly white: 
leaves narrowly oblong or oblanceolate 6-24 lines long, narrowed at base, 
sessile, entire: flowers in terminal spikes and capitate clustered injthe ax- 
ils, often strictly dicecious: calyx 5-cleft: bracts ovate, united to above 
the middle, mostly sessile, becoming suborbicular, 1-2 lines long, not 
compressed, the margins and summit irregularly gash-toothed and the sides 
usually muricate or toothed. In dry saline soil, eastern Oregon to Brit. 
Columbia aud Nebraska. 
A. econfertifolia Watson 1. c. 119. A much branched spinescent shrub 
1-6 feet high, hoary-scurfy : leaves alternate, ovate or obovate to lanceolate, 
2-8 lines long, obtuse or acutish, cuneate at base, sessile or short-petioled, 
entire: flowers in small axillary’clusters : calyx 5-parted: bracts thick and 
scurfy, about 6 lines broad; suborbicular, with free entire margins, not 
veined nor appendaged, sessile, united at the cuneate base around the seed 
and broadly margined above: seed a line broad, filling the cavity. On 
alkaline plains, eastern Oregon and Idaho to New Mexico. 
7 EUROTIA Adans. Fam. Pl. ii. 260. (1763.) 
Low pubescent undershrubs, with alternate entire leaves and 
small clusters of axillary and subspicate flowers. Flowers diceci- 
ousor moneecious. Staminate flowers bractless, the calyx 4-parted 
with unappendaged lobes and as many stamens: filaments slen- 
der, exserted.  Pistillate flowers without calyx, bibracteate. 
Bracts sessile, somewhat obcompressed, united to the apex, becom- 
ing enlarged and rather rigidly membranaceous, not winged, 2- 
horned at the apex, the sides densely covered with long spreading 
tufted hairs. Ovary oblong-ovate sessile, hairy, firmly membran- 
aceous. Styles 2, exserted. Seed vertical, obovate, the testa sim- 
ple. Cotyledons broad and green: radicle inferior. 
E. lanata Mog. Enum. Chenop. 81. White-tomentose throughout 
with stellate hairs: stems erect, with strict ascending leafy branches, 6-30 
inches high: leaves linear to narrowly lanceolate, with revolute margins, 
6-18 lines long, obtuse: calyx-lobes ovate, acute, hairy: bracts lanceolate, 
2-3 lines long in fruit, with 2 short horns at the apex, penicillate with 4 
dense spreading tufts of silvery white hairs: utricle loose, the pericarp 
readily separating from the large seed. On dry ridges, eastern Brit. Co- 
lumbia to California and Nebraska. 
5 EREMOSEMIUM Greene Pitt. iv, 225. 
GRAYIA H. & A. 
Subspinescent undershrubs with alternate entire leaves: and 
small flowers in axillary clusters or terminal spikes. Flowers 
