coMPOsiT.i;. 203 chrysanthemum. 



1. A. MILLEFO'LIUM. 



Leaves bipinnatifid, with linear, dentate, mucronate segments ; involucre 

 and stem iurrowed. The yarrow abounds in fields, pastures, &c. It is called 

 altJQ Millfoil, from its leaves being cut and parted into so numerous divisions 

 and subdivisions. Stem a foot high, branching at top into a dense, flat-topped 

 corymb of white or rose-colored flowers. It has an agreeable, pungent taste 

 and smell. June — Sept. Per. Yarrow. Millfoil. 



2. A. pta'rmica. 



Leaves linear, acuminate, equally and sharply serrate, smooth. Found in 

 moist grounds and shady places. Plant about 15 inches high, branching at 

 top into a diffuse corymb of white flowers. The leaves are remarkably 

 distinct from the yarrow. The dried powder of the leaves used as snuff 

 provokes sneezing. A variety with double flowers occurs which is quite 

 ornamental in pots. Aug. Per. Uneeze-wort. 



32. LEUC A'NTIIEMUM. 

 Involucre broad, depressed, imbricated ; ravs pistillate, 

 numerous ; receptacle flat, naked ; acheiiia striate ; papus 0. 



Gr. Xivicos, vAVile, avSoi, Bower; the flowers are large, with white rays 

 and a yellow disk. Lvs. alternate. 



L. VULGA'rE. Lam. Chrysanthemum laucanthemum. L. 



Leatcs amplexicaul, lanceolate, serrate, cut-pinnatifid at base; stem erect, 

 branching. The common white- weed is a great annoyance to farmers, rapidly 

 overspreading pastures and neolected fields. Stems 2 feet high, simple or 

 with one or two long branches, furrowed. Leaves comparatively few and 

 small, obtuse, the lower ones petiolate, with deep and irregular teeth ; upper 

 ones small, subulate, those of the middle sessile, clasping, deeply cut at base, 

 with remote teeth above. Flowers large, terminal, solitary. Disk yellow. 

 Rays numerous, white. July — Sept. Per. fVhite-tcced. Oz-cije Daisy. 



33. PYRE'THRUM. 

 Involucre hemispherical, imbricate; scales with membran- 

 ous margins; receptacle naked ; pappus a membranous margin 

 crowning the achenia. 



The ancient Greek name of a certain plant supposed to have been a species 

 of Anthemis. Its root had an acrid, burning taste and hence the name, from 

 TTV^, fire. Oriental herbs, chiefly perennial, with alternate leaves. 



P. PaRTHE'NIUM. — Leaves petiolate, flat, tripinnate, the segments 

 ovate, cut; peduncles branching, corymbose ; sie?n erect ; mro/»f re hemispher- 

 ical, pubescent. Several varieties of the Feverfew are cvltivated, and are in 

 great favor with many florists, on account of their fine pyramidal form, 

 surmounted with a corymb of pure while, double flowers, which retain their 

 beauty for several weeiis. Feverfew. 



34. CHRYS A'NTHEMUM. 



Involucre imbricate, hemispherical, the scales with mcm- 



l)ranous margins; rece[)tacle naked; pappus 0. 



Gr. ^gvo-oj, gold, av^os, a flower; many species bearinor golden colored 

 flowers. An ornamental genus from China and other eastern countries 

 Leaves alternate, lobed, 



