Spring Flora of Oklahoma 
37 
FAMILY 18. CHENOPODIACE7E. Goosefoot Family. 
Herbs or shrubs. Leaves simple, alternate, without 
stipules. Flowers small, actinomorphic, either bi sexual 
or more or less monoecious or dioecious. Calyx free from 
the ovary. Corolla wanting. Stamens usually 5 oppo¬ 
site the sepals. Styles or stigmas generally 2. Fruit 
with one seed usually inclosed in a small, bladdery sac, 
sometimes an achene. 
I. MONOLEPIS Schrad. 
Flowers small, glomerate in the upper axils. Sepal 1, 
green, entire, bract-like, fleshy, obtuse. Utricle moder¬ 
ately flattened. Seed vertical, much compressed. 
1. Monolepis Nuttalliana (R. & S.) Greene. Branched from 
the base, 3'-12' high, somewhat fleshy, rather pale green, scarcely 
or not at all mealy. Leaves lanceolate in outline, short-petioled, or 
the upper sessile, 6"-18" long, narrowed at the base, 3-lobed, the 
middle lobe linear or linear-oblong, acute or acuminate. Flowers 
clustered in the axils. Pericarp minutely pitted. 
In alkaline or dry soil. Common. May-August. 
FAMILY 19. NYCTAGINACEiE. Four-O’clock Family. 
Herbs with simple, entire leaves, and regular flowers 
on terminal or axillary clusters, subtended by involucres 
of distinct or united bracts. Petals none. Calyx inferior, 
usually corolla-like, its limb campanulate, tubular or sal¬ 
ver-form, 4-5-lobed or 4-5-toothed. Stamens hypogynous. 
Ovary enclosed by the tube of the perianth, sessile or stip- 
itate, 1-celled, 1-ovuled. Fruit a ribbed, grooved or 
winged anthocarp. 
I. ALLIONIA Loefl. 
Forking herbs, with opposite, equal leaves, and in¬ 
volucres in loose terminal panicles or solitary in the axils 
