20 NORTH AMERICAN FLORA [Vorums 21 
and finely farinose or glabrate, tinged with red, at least below; petioles slender, one half to 
two thirds as long as the blades; leaf-blades triangular to thombic-ovate, 0.7—1.6 cm. long, 
acute or obtuse at the apex, apiculate, broadly cuneate to rounded at the base, thin, green 
and glabrate on. the upper surface, very finely and usually densely farinose beneath, the upper 
blades ovate to lanceolate or elliptic, acute or acuminate to a cuspidate tip; flowers in very 
small glomerules, these in slender, dense or interrupted, paniculate spikes, the branches of 
the inflorescence usually slender and flexuous, nearly naked; calyx sparsely farinose, deeply 
cleft, the lobes broadly oblong or ovate, obtusely carinate, incompletely enclosing the fruit; 
pericarp adherent; seed horizontal, 1 mm. broad, black and shining, puncticulate, the margin 
obtuse. 
Type collected in the Santa Rita Forest Reserve, Arizona, in 1903, David Griffiths 5982 (U.S. 
Nat. Herb. no. 497569). 
DISTRIBUTION: Southeastern Arizona, 
VIII. Vulvariae. Plants stout, strongly ill-scented, densely farinose with inflated 
whitish trichomes. Leaves long-petiolate, the blades usually as broad as long or broader, entire 
or subhastate or 3-lobed. Glomerules of flowers spicate. Calyx-lobes rounded on the back 
or carinate, closely investing the fruit. Pericarp adherent. Seed horizontal. 
26. Chenopodium Vulvaria 1. Sp. Pl. 220. 1753. 
Atriplex Vulvaria Crantz, Inst. 1: 207. 1766. 
Chenopodium foetidum Lam. Fl. Fr. 3: 244. 1778. 
Chenopodium olidum Curt. Fl. Lond. 5: pl. 20. 1788. 
Chenopodium album Vulvaria pune: Taschen-Fi. ee 218. 1867. 
Vulvaria vulgaris Bubani, F). Pyren. 1: 175. 1897 
Til-scented annual, much ane from the base and often throughout, the branches 
ascending, 1.5-4 dm. long, slender or stout, copiously farinose; petioles half as long as the 
blades or longer, often equaling them; leaf-blades rhombic-ovate to ovate-orbicular, 1-3.5 em. 
long and as wide, rounded to acutish at the apex, mostly rounded at the base, entire, thick, 
copiously farinose beneath, often glabrate on the upper surface; flowers in small glomerules, 
these in slender or stout, ustially dense, paniculate spikes, the inflorescence little branched, 
usually leafy; calyx densely farinose, the lobes obtuse, rounded on the back, completely en- 
closing the fruit; pericarp adherent; seed horizontal, depressed-globose, dull, slightly puncticu- 
late, black, 1 mm. broad, the margin rounded. 
TYPE LocaLity: Europe. 
DistRIBUTION: Europe, western Asia, and northern Africa; sparsely adventive from Quebec 
and Ontario to Maryland and Wisconsin, and in Florida. 
ILLUSTRATIONS: Curt. Fl. Lond. 5: pl. 20; Engl. Bot. pl. 1034; Fl. Dan. pl. 1152; Dodoens, 
Pempt. 605; Blackw. Herb. 1. 100; Woodv. Med. Bot. pl. 145; Sturm, Deuts. FI. 75: pl. 14; Britt. 
& Brown, Tit. Ft. ed. 2. af 1681; Reichenb. Ic. Fl. Germ. 24: pl. 237; Moss, Cambr. Brit. Fi. bl. 157; 
Hegi, Ill. FI. pl. 95, fag + Pratt, Fl, Pl. Great Brit. pl. 175, f. 3; Benth. Til. Handb. f. 835; Fiori & 
Paol. Ic. Fl. Ital. f. ‘1009. 
27. Chenopodium Watsoni A. Nelson, Bot. Gaz. 34: 362. 1902. 
Chenopodium olidum S. Wats. Proc. Am. Acad. 9:95. 1874. Not C. olidum Curt. 1788. 
Til-scented annual, much branched from the base and throughout, the branches spreading 
or ascending, often decumbent, 2-8 dm. long, very stout, obtusely angled and striate, densely 
and coarsely farinose; petioles stout, half as long as the blades or longer, often nearly equaling 
them; leaf-blades broadly rounded-deltoid or rounded-rhombic, 1.5—4 cm. long and of about 
the same breadth, rounded or obtuse at the apex, very shortly apiculate, rounded or sub- 
truncate at the base, entire, or the lower with 1 or 2 low ropnded teeth on each side at the 
base, thick, densely and rather coarsely farinose on both surfaces, the upper blades smaller, 
entire, rounded-ovate or rhombic-ovate, sometimes acute, broadly cuneate at the base; flowers 
in rather large glomerules, these in short, stout, dense, axillary or sparsely paniculate spikes, 
the inflorescence very leafy; calyx very densely farinose, deeply cleft, the lobes broadly ovate 
or oblong, obtuse, enclosing the fruit; stamens exserted; pericarp adherent; seed horizontal, 
1 mm. broad, the margin obtuse. 
Tyrz Locality: Arizona, . ; 
DISTRIBUTION: In dry soil, Montana to New Mexico and Arizona. 
