WOOTON AND STANDLEY—NEW PLANTS FROM NEW MEXICO. 119 
above with a white pubescence, this often denser along the veins so as to 
produce the appearance of longitudinal silvery lines; involucres 2 or 3 mm. 
long, campanulate, sericeous, the teeth low, triangular, acute, all on stout 
pedicels 5 to 10 mm. long; perianth 2 mm, long, yellow, conspicuously sericeous, 
the segments oblong, on slender, glabrous pedicels reflexed at maturity ; achenes 
glabrous, 3 mm. long, spherical and turgid at the base, narrowly winged above 
the middle. 
Type in the U. 8. National Herbarium, no, 45775, collected in the Organ 
Mountains, August, 1881, by G. R. Vasey. 
ADDITIONAL SPECIMENS EXAMINED: Organ Mountains, June 25, 1894, Wooton. 
Our proposed species is nearest HL. hieracifolium. That species differs, how- 
ever, in the loose and longer, coarser pubescence of the leaves and stem, greater 
size, larger and narrower, more acute leaves, larger involucres 3 to 5 mm. 
long, and the larger perianths. 
CHENOPODIACEAE. 
Atriplex flagellaris Wooton & Standley, sp. nov. 
Perennial; stems trailing, slender, 30 to 40 cm. long, weakly ascending at the 
tips; cortex at first densely white-scurfy, becoming glabrous, shining, shreddy 
near the base of the stems; leaves numerous, small, 1 to 3 cm. long, scarcely 
half as broad, oblong to narrowly obovate, tapering into a short petiole, glabrate 
above, white-scurfy beneath, obtuse or acute, the margins entire or with a few 
coarse teeth on each side; flowers few, axillary; pistillate flowers 2 to 5 in the 
axil, usually only one producing fruit; staminate flowers in small, spherical 
heads 2 mm. in diameter in the same axils; fruiting bracts cuneate-obovate, 
5 or 6 mm. Jung, united to above the middle, prominently 3 to 5-nerved, not 
appendaged on the back, the upper part of each bract herbaceous with one 
large central tooth and one or two small Iuteral ones on each side; seed 
lenticular. 
Type in the U. S. National Herbarium, no. 562291, collected in the Mesilla 
Valley, June, 1906, by Paul C, Standley (no. 490). 
ADDITIONAL SPECIMENS EXAMINED: Mesilla Valley, July 4, 1906, Wooton; 
Mesilla Valley, May 1, 1907, Wooton & Standley. 
Judging from the description alone and from the character of the fruit, our 
plant is related to A. barclayana D. Dietr., but it differs in having much larger 
fruit with fewer teeth, while the plant is much smaller and slenderer than that 
species of the western coast of Mexico. 
This is a dooryard and wayside weed commonly found in locations preferred 
by A. elegans, with which it was confused for a long time. Herbarium speci- 
mens look somewhat like that species, but the habit of the two is very different, 
as are their fruits. 
Atriplex collina Wooton & Standley, sp. nov. 
Low, densely branched shrub, 25 cm. high or less, forming broad, rounded 
clumps; branches ascending or spreading, ending in sharp, spinose tips, stout, 
loosely but copiously lepidote; leaves very numerous, small, 2 em. long or 
shorter, elliptic-oval to elliptic or nearly lanceolate, thick and fleshy, densely 
lepidote, obtuse or acutish, acute or cuneate at the base, on very short, broad 
petioles; plants diecious, apparently, only the pistillate collected, the fertile 
flowers axillary, sessile; bracts united only at the base, rather thin, very 
broadly ovate or quadrilateral, 8 mm. long or smaller, densely lepidote, broadly 
cuneate at the base, acutish, all or nearly all obtusely dentate on the margins, 
smooth on the backs. 
60541°—18——2 
