370 
++ Fruiting bracts indurated, united at aper, with four broad membMnaceous veined 
wings: leaves narrow, entire. 
10. A.canescens(Pursh.) James, Anerectdiffusely branched shrub, 3 to6dm. high: 
leaves narrowly oblong or oblanceolate, 1.5 to 2.5 em. long, narrowed at base, sessile: 
flowers axillary or in naked spikes, mostly diwcious: fruiting bracts forming a thick 
and indurated body, short-pedicelled and with a narrow bifid apex, the broad wings 
somewhat decurrent upon the pedicel. (Calligonum canescens Pursh. )}—Throughout 
western Texas. Often confused with 4d. Nutiallii. Var. ANGUSTIFOLIA Watson has 
linear often more or less revolute leaves. (Obione occidentalis, var. angustifolia Torr. 
Bot. Mex. Bound. 184.)—On the Rio Grande, from El Paso to below San Elizario, 
7. BUROTIA Adanson. 
Low stellately tomentose undershrubs, with alternate entire leaves, 
small clustered axillary and subspicate flowers, 4-parted calyx, 4 sta- 
mens exserted together with the two somewhat hairy styles. 
E. lanata (Pursh.)Moq. White tomentose throughout: leaves linear to narrowly 
lanceolate, with revolute margins, obtuse: calyx lobes hairy: fruiting bracts lanceo- 
late, neariy covered by 4 dense spreading tufts of long silvery white hairs, and 
beaked above with two short horns. (Diotis lanata Pursh.)—Common in western 
Texas. A valuable forage plant, known as ‘‘ white sage” or ‘winter fat.” 
8. CORISPERMUM A. Juss. (BUG-SEED.) 
Annual herbs, with alternate sessile linear leaves, ebracteate flowers, 
a suborbicular sepal erose or lacerate at apex, 1 to 5 hypogynous sta- 
mens ‘one longer), 2 styles, and fruit with margin acute or narrowly 
winged. 
1. C. hyssopifolium L. Somewhat floccose or villous pubescent, pale, erect, 1.5 
to 4.5 dm. high, diffusely branched: leaves cuspidate; floral leaves or bracts awl- 
shaped from a dilated base, or the upper ovate and pointed, scarious margined: 
fruit 6 to 8 mm. long.—Alluvial soils of the Rio Grande. Very variable. Var. MICRO- 
CARPUM Watson has elongated spikes and fruit but 2mm, long.—Laredo, along the 
Rio Grande. . 
9. SALICORNIA L. 
Low plants, with succulent leafless stems and opposite branches, 3 
flowers together immersed in each hollow of the thickened upper joints 
forming the spike, a small bladder-like calyx having a toothed or torn 
margin, which at length becomes spongy with narrowly winged border 
and inclosing the flattened thin utricle, two styles, and pericarp adher- 
ent to the seed. 
1. S. mucronata Bigel. Annual, herbaceous, stout, erect, 5 to 30 cm. high, naked 
below, turning red in age: spikes thick, closely jointed, obtuse: scales mucronate- 
pointed and conspicuous, especially when dry: middle flower half higher than the 
lateral ones or less, occupying nearly the whole length of the joint: fruit pubescent ; 
seed 1 to 1.5mm, long.—On the beach at Brazos Santiago. Var. SUFFRUTESCENS Wat- 
son is stout, woody at base, 3 to 6dm. high, much branched, with rather acute spikes, 
and seeds 1.5 to 2mm. long.—At the mouth of the Rio Grande. 
2. S. ambigua Michx. Numerous tufted stems (.5 to 3 dm, Jong) decumbent or 
ascending from a hard and rather woody creeping base or rootstock, greenish, turn- 
