3S 
Colorado Agricultural College 
. Cycloloma 
Kochia 
Salsola 
conduplicate (folded together lengthwise) or spirally coiled; calyx 
usually persistent, enclosing the fruit. 
Key to Genera 
Calyx in fruit surrounded by a wing (parallel to the flat surface) 
Wing continuous, broad 
Wing 5-lobed, narrow 9 
Calyx not surrounded by a wing parallel to the flat surface 
Calyx present 
Embryo spirally coiled 3 
Embr^ a ring 4::ihenoio<iiu... 
calyx absent; utricle enclosed in foliaceous (leaf-like) bracts 5..Atriplex 
1. Winged Pigweed 
{Cycloloma Moq.) 
Utricle depressed, enclosed in the calyx; ovary 1-celled ; seed flat, hori- 
zontal; calyx strongly keeled and appendaged with a broad, continuous, 
horizonal wing; endosperm mealy. 
Winged Pigweed {Cycloloma atriplicifolium {Spreng.) Coult.) (Fig. 
Calyx 5-lobed, surrounded by a broad, horizontal, membranaceous wing; 
fruit flat, thin; with wing and calyx persistent seeds are 2.5-3 mm. across' 
With wing removed the seeds are 1-1.5 mm. across; wings white to neutral- 
gray in color ; calyx brown to black ; seeds with calyx and wing removed, 
dull black in color. 
2. Burning Bush, Kochia 
{Kochia Roth.) 
Utricle ovate to pyriform in shape when calyx is 
removed ; pericarp membraneous, not adherent to the 
seed; endosperm little or w'anting. 
Burning Bush {Kochia scoparia {L.) Schratl.) 
(Fig. 50). — Seeds with (*alyx persistent, pale smoke- 
gray in color, with cnlyx removed dull black; seed 
surface rough, wrinkled, irregularly and deeply con- 
cave on both sides ; seed ovate to i)yriform in shape, 
with little or no endos])erm, 1-1.5 mm. long; .0-1 mm. 
wide. 
Fig. 50. Burri- 
ng Bush (Kochia 
scoparia). T o p 
view (left), eage 
view (right), x li 
