Part 1, 1916] CHENOPODIACEAE 25 
completely enclosing the fruit; pericarp adherent; seed horizontal, 0.8-1 mm. broad, puncticu- 
late or nearly smooth, black, shining, the margin obtuse or rounded. 
TYPE Locality: Mexico. 
DistTRIBUTION: North Carolina to Florida, Texas, and Mexico: sparsel adventive in the 
northeastern United States, and in Europe. id 6 
IuLustRatIon: Britt. & Brown, Ill. Fl. f. 1365. 
X. Aristata. Plants low, glabrous. Leaves subsessile, the blades linear, entire. Flowers 
solitary, sessile or pedicellate, in loose dichotomous cymes, the lateral flowers abortive, their 
pedicels spinose. Calyx-lobes subcarinate. Seed horizontal. 
39. Chenopodium aristatum L. Sp. Pl, 221. 1753. 
Chenopodium virginicum 1. Sp. Pi. 222. 1753. 
Atriplex aristata Crantz, Inst. 1: 208. 1766. 
Lecanocarpus aristatus Zucc.; Schrank & Mart. Hort. Monac. 56. 1829. 
Teloxys aristata Moq. Ann. Sci. Nat. II. 1: 290. 1834. 
Teloxys aristata nana Mog, in DC. Prodr. 132: 60. 1849. 
Erect annual, 0.5-3 dm. high, glabrous, usually much branched, the branches slender; 
leaves subsessile, the blades linear, lance-linear, or linear-oblong, 1.5—8 cm. long, 2-9 mm. wide, 
acutish or obtuse at the apex, narrowed at the base, the margins rarely sinuate; inflorescence 
terminal and axillary, loosely dichotomous, naked, the flowers sessile or pedicellate, the lateral 
flowers usually abortive, their pedicels slender and sharply spinose; calyx 0.4 mm. long, the 
lobes obovate or ovate-elliptic, obtuse, subcarinate; seed horizontal, 0.5 mm. broad, black, the 
margin acute. 
TYPE LOCALITY: Siberia. 
DistRrBution: Northeastern Asia; reported from Alaska and Mexico. 
ILLusrratTions: Gmel. Fl. Sib. 3: pl. 15; Ann. Sci. Nat. II. 1: pl. 10, A; E. & P. Nat. Pal. 318: 
*, 25, C-G; Fiori & Paol. Ic. Fl. Ital. f. 1018; Reichenb. Ie. Fl. Germ. 24: pl. 252, f. 1-7. 
XI. Incisa. Plants low, the leaves and inflorescence furnished with numerous yellow 
glands. Leaf-blades pinnatifid or deeply dentate. Flowers mostly solitary, in loose dichot- 
omous cymes, sessile or pedicellate, the lateral flowers commonly abortive, their pedicels 
spinose. Calyx-lobes corniculate-appendaged at the apex. Pericarp glabrous, adherent. 
Seed horizontal. 
40. Chenopodium incisum Poir. in Lam. Encyc. Suppl. 1: 392. 1811. 
?Chenopodium graveolens Lag. & Rodr. Anal. Ci. Nat. 5: 70. 1802. 
Ambrina incisa Moq. Chenop. Enum. 36. 1840. 
Chenopodium foetidum Mog. in DC. Prodr. 137: 76,in part. 1849. Not C. foetidum Schrad. 1808. 
Chenopodium effusum Mart. & Gal. Bull. Acad. Brux 10!: 346. 1843. 
Teloxys cornuta Torr. Pacif. R. R. Rep. 4: 129. 1857. 
Chenopodium cornutum Benth. & Hook.; S. Wats. Bot. Calif. 2: 482. 1880. 
Strong-scented erect annual, 2~6 dm. high, simple or branched at the base, the branches 
ascending, paniculately branched, sparsely puberulent or glabrate, often tinged with red; 
petioles slender, 2-25 mm. long; leaf-blades deltoid-ovate or oblong to narrowly oblong in 
outline, 2-6.5 cm. long, 1.5-3 em. wide, obtuse to acuminate at the apex, truncate or narrowed 
and cuneate at the base, sinuate-pinnatifid or laciniate-pinnatifid, the lobes oblong or deltoid, 
obtuse to long-acuminate, entire or sinuate-dentate, bright-green, glabrous or minutely viscid- 
villous on the upper surface, covered beneath with yellow glands; inflorescence of numerous 
loosely few-flowered, axillary cymes, these finally forming narrow elongate naked panicles; 
flowers sessile in the forks of the branches and solitary at the ends of the slender lateral branches, 
the pedicellate flowers usually abortive, their pedicels spinose; calyx deeply cleft, the lobes oval 
or oblong, acute or obtuse, corniculate-appendaged, covered with yellow glands, incompletely 
enclosing the fruit; seed horizontal, 0.5-0.8 mm. broad, depressed-globose, dark-brown, the 
pericarp adherent. 
TYPE LOCALITY: Not known. . ; . 
DIsTRIBUTION: Western Texas, southern Colorado, and Arizona to Costa Rica; adventive in 
Massachusetts and Maine; also in South America and Africa. 
XII. Botryes. Low, glandular-pubescent annuals. Leaf-blades pinnatifid to dentate. 
Flowers in loosely dichotomous cymes, sessile or pedicellate. Calyx-lobes carinate. Peri- 
carp glabrous, adherent. Seed horizontal. 
