54 NORTH AMERICAN FLORA [VoLuME 21 
nate, short-petiolate or sessile, the blades cuneate-obovate, broadly oval, oblong, or oblance- 
olate, 0.5-2 cm. long, 2-10 mm. wide, rounded or obtuse at the apex, mucronulate, cuneate 
at the base, sometimes abruptly so, repand-dentate above the base, the teeth triangular, acute 
or obtuse, the uppermost blades sometimes entire, all thin, densely white-furfuraceous beneath, 
grayish-green on the upper surface; flowers monoecious, in small axillary glomerules or fascicles, 
or the staminate glomerules terminal; calyx 5-cleft; fruiting bracts very shortly pedicellate, 
suborbicular, 1.5-2 mm. long, united to the middle, compressed, not herbaceous, the free 
margins obtusely denticulate, the terminal tooth slightly largest, the sides shortly and sparsely 
tuberculate; seed brown, 1 mm. long, the radicle superior. 
Type LocaLity: Mexico. 
DrstRIBUTION: Central Mexico. 
45. Atriplex pentandra (Jacq.) Standley. 
Axyris pentandra Jacq. Sel. Stirp. Am. 244. 1763. 
Atriplex cristata Humb. & Bonpl.; Willd. Sp. Pl. 4: 959. 1806. 
Obione cristata Moq. Chenop. Enum. 73. 1840. 
Annual or perennial, often suffrutescent at the base, much branched, the branches stout 
or slender, obtusely angled, ascending or procumbent, 3-8 dm. long, finely furfuraceous when 
young, glabrate in age; leaves alternate, sessile or short-petiolate, the blades oblong, rhombic- 
ovate, broadly obovate, or narrowly oblong, 1-3 em. long, 3-15 mm. broad, rounded to acute 
at the apex, mucronate, cuneate at the base, repand-dentate, sinuate-dentate, undulate, or 
the upper entire, thin, densely white-furfuraceous beneath, grayish-green and usually glabrate 
on the upper surface; flowers monoecious, the staminate flowers in short dense naked terminal 
spikes, the pistillate flowers fascicled in the axils; calyx 5-cleft, the lobes with green keels; 
fruiting bracts sessile, broadly cuneate-orbicular, 3 mm. long and usually broader, united only 
at the truncate or broadly cuneate base, compressed, much thickened at maturity, the margins 
deeply and acutely dentate, the sides with 2 dentate crests or covered with irregular conic 
acute corky tubercles; seed brown, 1.5 mm. long, the radicle superior. 
TYPE LOCALITY: Seashores of Cuba. 
DisTRIBUTION: Sandy seashores, oe Florida and the West Indies; also from Venezuela 
and Colombia to Peru. 
ILLUSTRATION: Jacq. Sel. Stirp. Am. Pict. pl. 235, 
46. Atriplex confinis Standley, sp. nov. 
Erect perennial (?), suffrutescent below, the branches stout, obtusely angled, densely 
white-furfuraceous; leaves numerous, alternate, often with fascicles of smaller ones in the axils, 
short-petiolate or the uppermost sessile, the blades broadly oblong, oval, or ovate-rhombic, 
1.2-3 cm. long, 4-15 mm. wide, rounded at the apex, broadly cuneate to attenuate at the 
base, coarsely and irregularly sinuate or sinuate-dentate, subcoriaceous, densely and closely 
white-furfuraceous on both surfaces; flowers monoecious, the staminate glomerules in short 
dense terminal spikes, the pistillate flowers in axillary fascicles; calyx 5-cleft, the lobes denticu- 
late; fruiting bracts sessile or short-pedicellate, 3-4 mm. long and slightly broader, compressed, 
united to the middle, truncate at the apex, and ending in a triangular tooth, or 3-5-dentate, 
the teeth acute, the sides not appendaged; seed 1.5 mm. broad, brown, the radicle 
superior. 
Type collected on Sombrero Island, West Indies, in 1864, A. A. Julien (U.S. Nat. Herb. no. 
48300). ‘ 
47. Atriplex glomerata S. Watson, sp. nov. 
Decumbent annual, much branched, the branches stout, obtusely angled, furfuraceous, 
becoming glabrate; leaves numerous, alternate, the petioles half as long as the blades or usually 
shorter, the blades rhombic to oval or obovate, 5-14 mm. long, 2-8 mm. wide, rounded or 
obtuse at the apex, mucronulate, cuneate or attenuate at the base, usually abruptly so, repand- 
dentate nearly to the base, or the uppermost entire, thin, densely white-furfuraceous on the 
lower surface; flowers monoecious, in few-flowered axillary clusters; calyx deeply 5-cleft; 
fruiting bracts short-pedicellate, flabellate or rhombic, 2 mm. long, united to the middle, 
