8 NORTH AMERICAN FLORA ([VoLUME 21 
the base; ovule subsessile. Utricle depressed-globose; pericarp membranaceous, free from 
the seed. Seed horizontal, smooth; embryo annular, enclosing the farinaceous endosperm; 
radicle centrifugal. 
Type species, Salsola platyphylla Michx. 
1. Cycloloma atriplicifolium (Spreng.) Coult. Mem. 
Torrey Club 5: 143. 1894. 
Salsola atriplicifolia Spreng. Bot. Gart. Hal. Nachtr. 1:35. 1801. 
Kochia atriplicifolia Roth, Neue Beitr. 1: 177. 1802. 
Salsola radiata Desf. Ann. Mus. Paris 2: 28. 1803. 
Salsola platyphylla Michx. Fl. Bor. Am. 1: 174. 1803. 
Kochia dentata Willd. Hort. Berol. pl. 28. 1803. 
Salsola atriplicis Schultes, Obs. Bot. 52. 1809. : 
Chenopodium radiatum Schrad. Neues Jour. Bot. Schrad. 33: 85, 1809. 
Salsola chenopodioides Dum.-Cours. Bot. Cult. ed. 2. 2: 463, as synonym. 1811. 
Kochia platyphylla Schultes, in R. & S. Syst. Veg. 6: 274. 1820. 
Cyclolepis platyphylla Moq. Ann. Sci. Nat. II. 1: 204. 1834. 
Cycloloma platyphyllum Mog. Chenop. Enum. 18. 1840. 
Cycloloma platyphyllum latifolium Moq. Chenop. Enum. 19. 1840. 
Amorea platyphylia Delile, Cat. Hort. Monsp. 1844.—Mogq. in DC. Prodr. 132: 60, as synonym. 1849. 
Amoreuxia platyphylla Mog. in DC. Prodr. 132: 60, assynonym. 1849. 
Cycloloma platyphyllum angustifolium Mog. in DC. Prodr. 132: 60. 1849. 
Chenopodium atriplicifolium A. Ludw.; Asch. & Graebn. Syn. Mittel-Eur. Fl. 5: 18. 1913. 
Plants densely branched, 1.5-8 dm. high and of as great diameter, the branches slender, 
obtusely angled, striate, villous-tomentose with white hairs when young, becoming glabrate; 
leaves numerous but deciduous in age; petioles 2-15 mm. long; leaf-blades oblong or narrowly 
oblong in outline, 2-8 cm. long, 6-15 mm. wide, the uppermost smaller, acute, coarsely and 
irregularly sinuate-dentate, the teeth acute, mucronulate, white-tomentose when young, 
becoming glabrate; inflorescence broadly paniculate; calyx 3-4 mm. broad, more or less villous, 
becoming red or purple in age; ovary densely tomentulose; seed 1.5 mm. in diameter, black.. 
Type LocaLiry: North America. 
DISTRIBUTION: Sandy fields, Manitoba to Indiana, and southward to Arizona and Texas; 
occasionally adventive in the eastern United States and Burope. 
Inwustrations: Ann. Mus. Paris 2: ol. 34; Ann. Sci. Nat. II. 1: pl. 9, A; Willd. Hort. Berol. 
pl. 28; E. & P. Nat. Pl. 3%: f. 28, B-G; Britt. & Brown, Ill. Fl. f. 1376; ed. 2. f. 1694; Rob. & 
Fern. Man. f. 718; Clements, Rocky Mt. FI, pl. 10, f. 16; Iowa Geol. Surv. Bull. 4: f. 57; Bull. Mich. 
Exp. Sta. 267: f. 55; Fiori & Paol. Ic. Fl. Ital. f. 1020. 
7. ROUBIEVA Mog. Ann. Sci. Nat. IT. 1: 292. 1834. 
Pubescent, strong-scented, much branched, prostrate, perennial herbs. Leaves alter- 
nate, the blades sinuate-dentate or pinnatifid. Flowers small, perfect, or by abortion pistillate, 
ebracteate, solitary or clustered in the axils of the leaves. Perianth urceolate, shallowly 
5-lobed, the lobes rounded, accrescent and coriaceous in age, reticulate. Stamens 5, the 
filaments stout. Stigmas 2-5, connate at the base. Utricle enclosed by the perianth, com- 
pressed-globose, the pericarp thinly membranaceous, loosely adherent to the seed. Seed erect, 
orbicular, smooth; embryo annular, surrounding the copious endosperm; radicle inferior. 
Type species, Chenopodium multfidum L. 
1. Roubieva multifida (L;) Mog. Ann. Sci. Nat. IT. 1: 293. 1834. 
Chenopodium multifidum L,. Sp. Pl. 220. 1753. 
Atriplex multifida Crantz, Inst. 1: 207. 1766. 
Orthosporum multifidum Kostel. Allg. Med.-Pharm. Fl. 1434, 1835. 
Ambrina pinnatisecta Spach, Hist. Vég. 5: 296. 1836.. 
Plants usually much branched, very leafy, the branches prostrate or ascending, 1.5-7 
dm. long, striate, white-villous when young, sometimes glabrate in age; leaves oblong in 
outline, 1-4.5 cm. long, 3-20 mm. wide, or the upper smaller, bright-green, sparsely villous 
and glandular, deeply pinnatifid, or the lowest merely coarsely lobed, the segments oblong, 
acute or obtuse, entire or dentate; flowers sessile; calyx 2 mm. long in fruit, obovoid, reticulate- 
nerved, puberulent; seed 1 mm. in diameter, black and shining. 
Type LocaLity: Argentina. 
DistRBuTION: Brazil to Argentina and Chile; adventive in waste ground, southern New York 
to North Carolina, and in Alabama and California: adventive also in southern Europe. 
Inuustrations: Dill. Hort. Elth. pl. 66, f. 77: Ann, Sci. Nat. II. 1: pl. 10, B; Mart. Fl. Bras. 
5t; pl. 48; Britt. & Brown, Ill. Fl. f. 1374; ed. 2, f. 1692; E.& P. Nat. Pa. 31: 7. 27, A- C; G. 'T. Stev- 
ens, Ill. Guide pl. 36, f. 2; Fiori & Paol. Ic. Fi. Ital. f. 1019, 
