composite 337 



A. conyzoldes, Linn. [A. Mexicanum of gardens). Annua] pubescenl 

 herb, with ovate-deltoid serrate leaves: cultivated (from tropica] America] 



for its small ami numerous clustered soft heads. 



0. ACHILLEA. Farrow. 



Low perennial herbs: heads small, corymbose, many-flowered, white or 

 rose, with fertile rays: scales of involucre overlapping (imbricated): torus 

 flatfish, chaffy: pappus none. 



A. Millefolium, Linn. Yarrow. Stems simple below, bu1 branching al 

 the top into a large rather dense umbel-like flower cluster: leaves very dark 

 green, twice-pinnatifid into very fine divisions : rays 4-."). Pields everywhere. 



7. CALENDULA. Put Marigold. 



Erect, quick-growing annuals, with terminal large yellow or orange beads 

 with pistillate rays: involucre of many short green scales: torus flat: pap- 

 pus uone: akenes of the ray tlorets (those of the disk florets do nol mature) 

 curved or coiled. 



C. officinalis, Linn. Common pot marigold. A common garden annual 

 from the Old World, with alternate entire sessile oblong leaves: 1-2 ft. 



8. CHRYSANTHEMUM. Chrysanthemum. 



Erect herbs, annual or perennial, with alternate lobed or di\ ided leave-: 

 rays numerous, pistillate and ripening seeds : torn- usually naked, flal or 

 convex: pappus none. 



a. Aki ne& of ray florets winged. 



C. morifolium, Lam. [C. Sinense, Sabine). Oreenhousi ehrysanthen 

 Tall and mostly strict, with lobed. lirm and Long-petioled alternate lea 

 flowers exceedingly various. China. 



aa. . I /,' in g not wing i >/. 



C. Leucanthemum, Linn. Whiteweed, Ox-ey< daisy. Pig. 169. Peren- 

 nial, with manj simple stems from each root, rising l 2 ft., and bearing al- 

 ternate oblong Bessile pinnatifld leaves: leads terminating the 



-tern-, with Ioiil' white rays and yellow < 1 i - k ~ . Pields everyVi here 



in the East, and spreading West. 



9. RUDBECKIA. Coke-flower. 



Perennial or biennial berbs, with alternate leaves and showy 



yellOW-rayed terminal head-: raj florets neutral: scales of in 



volucre in about _' row-, leafy and spreading : torn- long or con! 

 cal, with a brad behind each floret: akenes 3-angled, with no 

 prominent pappus. 



R. hirta, Linn. Brown eyed s " an. In the I 



Pig. 198. Biennial, I -2 ft., coarse bairj . b -a-, es oblong or oblam 

 late, nearh enure. ;: uen i d : raj - as long as th( Involucn 

 longer, yellow, the di-k brown: torus conical. Drj flelds. 



R. laciniata, Lmn. Two t,. ; it., perennial, smooth, 

 Ing: leaves pinnate, with i Mobed leaflets, or the upper on< 

 parted: rays i 2 In, long: torus becoming columnar. L 



