TANACETUM VULGARE. 
Corotia. Superior, consisting of five united petals, either ligunate 
or tubular, 
Sramens. Five alternate with the lobes of the corolla. Anthers 
cohering into a cylinder. 
Ovary. Inferidf®, one-celled, one-ovuled. Style two-cleft, the 
inner margins of the branches occupied by the stigmas. 
Frurr. An achenia, dry, indehiscent, one-seeded, crowned with 
the pappus, 
Seeps, Numerous. 
THE SECONDARY CHARACTERS. 
Tanacetum. Involucre hemispherical, imbricate, the scales all 
minute. Receptacle convex, naked. Pappus a slight mem- 
braneous border. Achenia with a large epigynous disk. 
Involucre imbricate, hemispheric. Scales acuminate. Rays obsolete, three-cleft. 
Egret somewhat marginal. Receptacle naked. 
THE SPECIFIC CHARACTERS, 
Tanacetum Vutcare. Leaves pinnately divided. Segments 
oblong—lanceolate, pinnatifid and incisely serrate. Heads 
fastigiate—corymbose. 
Leaves, doubly pinnate, paah-—eerrate. In the variety Tanace1um Crispum, double 
tansy. The liguis are crisped and dense. 
THE ARTIFICIAL CHARACTERS. 
Crass Syncenesta. Stamens five, cohering by the tips of 
their anthers. Orper Potycamia Surerriva. Herbaceous plants. 
Flowers, or florets, collected into dense heads (compound flowers). 
Corollas monopetalous of various forms. : , 
NATURAL HISTORY 
_ Tansy is a native of Europe, and was a favorite plant with 
_ old King Charlemagne, who took considerable pains that it should 
be cultivated in his domains, It is, however, naturalized in 
many parts of the United States, and grows wild on hills, and by 
the sides of roads and hedges, and in old fields. It flowers from 
Jul to Sep mber. It is also cultivated in gardens irdens as well for 
