CLXXIL 

 TANACETUM VULGARE. 



Common Tansy, 



Class XIX. Syngenesia.— Order II. Polygamia 



SUPERFLUA. 

 Nat. Ord. Composite. 



Gen. Char. Involucre hemispherical, imbricated. Re- 

 ceptacle naked. Florets of the ray triiid, obsolete, some- 

 times wanting. Fruit crowned with a membranous 

 pappus. 



Spec. Char. Leaves bipinnatifid, inciso-serrate. 



SYNONYMES. 



Description. — The root is perennial, long, creeping, and 

 fibrous. The stems are erect, strong, angular, leafy, slightly 



VOL. II. a A 



