142 Chenopodiaceae 
herbaceous or partly fleshy, often keeled or ridged. Stamens 1—5. Styles 2—3. Seeds 
lens-shaped. (Gk. chen—a goose, pous—a foot; referring to the form of the leaves 
of some species. ) 
A. Plant glandular, more or less aromatic. : 
B. Leaves with oak-like lobing; mflorescence loose panicles of unclustered flowers. E. 
C. botrys L. (Jerusalem Oak) 
BB. Leaves with lobing not oak-like; inflorescence loose spikes of dense flower-clus- 
ters. W. (C. ambrosioides anthelminticum. ) 
C. anthelminticum L. (Worm-seed) 
AA. Plant not glandular, not aromatic. 
C. Perianth dry in fruit, not or hardly reddish; stamens 5; seeds horizontal. 
D. Leaves entire, linear or linear-lanceolate; pericarp loose, easily separated from 
the seed. C. E. C. leptophyllum Nutt. (Narrow-leaved Goose-foot) 
DD. Leaves dentate, broadly lanceolate to triangular; pericarp firmly attached to 
the seed. 
E. Leaves about twice as long as wide, mealy at least beneath (scarcely so in 
C. album viride) ; calyx completely enclosing the fruit. 
F. Leaves whitish-green and mealy at least beneath. W. E. 
C. album L. (Lamb’s Quarter) 
FF. Leaves green on both side or but slightly mealy. E. 
C. album viride Moa. 
EE. ‘Leaves I—11/2 times as long as wide, with little or no meal when ma- 
ture; calyx not completely enclosing the fruit. 
G. Leaf-teeth more than 8, notched to '4 the distance to mid-vein or less; 
leaf-base cuneate to truncate. W. 
C. murale L. (Sow-bane) 
GG. Leaf-teeth 2—6, notched to | /3 the distance to mid-vein, leaf-base 
truncate to cordate. C. E. 
C. hybridum L. (Maple-leaved Goose-foot) 
CC.  Perianth fleshy in fruit, red; stamens |—5; some or all of the seeds vertical. 
H.  Leaf-base hastate to obtuse; perianth-lobes becoming fleshy; fruiting heads 
bright red and strawberry-like, |0—17 mm. in diameter. C. E. (Blitum capi- 
tatum.) C. capitatum Asch. (Strawberry Blite) 
HH. Leaf-base cordate to hastate; perianth-lobes herbaceous; fruiting heads 
somewhat reddish, not strawberry-like, 4—6 mm. in diameter. 
I. Flowers in leafy spikes; seed | mm. wide. W. E. 
C. rubrum L. (Red Goose-foot) 
II. Flowers in axillary glomerules; seed 0.5 mm. wide. W.E. (C. humile.) 
C. rubrum humile Wats. (Seaside Goose-foot) 
MONOLEPIS 
Herbs, annual, low, branching. Leaves alternate, small, narrow, entire to lobed. 
Flowers perfect or polygamous, in small axillary clusters without bracts. Perianth of a 
single persistent herbaceous segment. Stamen 1. Styles 2, filiform. Ubricle flat. (Gk. 
monos=—=1, lepis==scale; referring to the single perianth-segment. ) 

A. Leaves mostly with a coarse tooth at each side at the base; perianth-segment acute; 
seed | mm. wide. E. (M. chenopodioides.) 
M. nuttalliana Gr. (Toothed Monolepis) 
AA. Leaves entire; perianth-segment obtuse; seed less than 0.5 mm. wide. 
B. Leaves oblong, obtuse; flowers 1—2 in a cluster; pericarp adherent to the seed. 
E. M. pusilla Torr. (Small Monolepis) 
