58 NORTH AMERICAN FLORA [VoLumE 21 
long, the margins deeply laciniate-dentate nearly to the base, the sides each bearing 2 laciniate 
crests; seed 1 mm. long, pale-brown, the radicle superior. 
TYPE Locality: Tucson, Arizona. 
DistTRisuTion: Low plains, southern Arizona. 
59. Atriplex cyclostegia Standley, sp. nov. 
Procumbent annual, much branched, the branches stout, obtusely angled, 5 dm. long or 
less, sparsely furfuraceous; leaves numerous, alternate, short-petiolate or sessile, the blades 
cuneate-obovate to oblong or narrowly oblong, 1.5-3.5 cm. long, 3-13 mm. wide, rounded 
or obtuse at the apex, or the uppermost acute and mucronate, cuneate to attenuate at the base, 
remotely and coarsely repand-dentate, or the uppermost ones entire, thin, finely and densely 
white-furfuraceous beneath, grayish-green and sparsely furfuraceous on the upper surface; 
flowers monoecious, in few-flowered axillary glomerules; calyx deeply 5-cleft; fruiting bracts 
sessile, orbicular, 3-4 mm. long, coherent, the herbaceous margins laciniate-dentate to the 
base, the terminal tooth triangular to oblong, acute, much exceeding the lateral teeth, the 
sides not appendaged, 1-nerved, furfuraceous. 
Type collected near Hermosillo, Sonora, Mexico, June 10, 1897, F. S. Maltby 222 (U. S. Nat. 
Herb. o. 314967). 
60. Atriplex elegans (Moq.) D. Dietr. Syn. Pl. 5: 537. 1852. 
Obione elegans Mog. in DC. Prodr. 132: 113. 1849. 
Obione radiata Torr. Bot. Mex. Bound. Surv. 183. 1859. 
Obione elegans radiata Torr. Bot. Mex. Bound. Surv. 183, in part. 1859, 
Annual or sometimes perennial, much branched, the branches slender or stout, obtusely 
angled, 1.5-5 dm. long, ascending or procumbent, furfuraceous when young, usually glabrate 
in age; leaves numerous, alternate, sessile or short-petiolate, the blades oblong to oblanceolate 
or linear, 7-22 mm. long, 2-6 mm. wide, obtuse or acute at the apex, mucronulate, cuneate to 
attenuate at the base, remotely and irregularly repand-dentate, or the upper ones entire, thin, 
closely white-furfuraceous beneath, usually green and glabrate on the upper surface; flowers 
monoecious, in few-flowered axillary glomerules; calyx 5-parted; fruiting bracts short-pedi- 
cellate, 3 mm. long, orbicular, strongly compressed, coherent, the margins rather broad, green, 
deeply laciniate-dentate to the base, the sides carinate, furfuraceous, not appendaged; seed 
1 mm. long, the radicle superior. 
TYPE LOCALITY: Sonora. 
DistRIBUTION: In alkaline soil, western Texas to southern Arizona, Lower California, and 
Durango. 
61. Atriplex fasciculata S. Wats. Proc. Am. Acad. 17: 377. 1882. 
Atriplex elegans fasciculata M. E. Jones, Contr. West. Bot. 12: 76. 1908. 
Atriplex saltonensis Parish, Muhlenbergia 9: 57. 1913. 
Atriplex elegans Jepson, Fl. Calif. 437. 1914. Not A. elegans D. Dietr. 1852. 
Annual, 5-15 cm. high, much branched throughout, the branches stout or slender, obtusely 
angled, erect or decumbent, densely furfuraceous; leaves very numerous, alternate, sessile or 
stibsessile, the blades cuneate-obovate, oblong-obovate, or oblanceolate, 5-12 mm. long, rounded 
to acutish at the apex, cuneate at the base, entire, rather thin, densely furfuraceous; flowers 
monoecious, both kinds in the same small axillary clusters; calyx 5-cleft; fruiting bracts sub- 
sessile, orbicular, compressed, 2.5-3 mm. long, coherent, the margins very narrow, finely den- 
tate, the teeth obtuse or acute, the sides not appendaged, 1-nerved; seed 1.5 mm. long, pale- 
brown, the radicle superior. 
TyPE Locality: Near Fish Ponds, Mohave Desert, California. 
DISTRIBUTION: Southeastern California and southern Arizona. 
XVI. Leucopbyllae. Erect or prostrate perennials, suffrutescent at the base, densely 
furfuraceous. Leayes alternate, sessile, broad, subcoriaceous. Flowers monoecious, the stam- 
inete glomerules axillary or in short spikes. Fruiting bracts sessile, small, slightly or not at 
all compressed, united about to the middle, rounded-ovate, entire or dentate, the sides short- 
tuberculate. Radicle superior. 
