COMPOSITAE (COMPOSITE FAMILY) 



123 



CHRYSANTHEMUM 



Herbs, with toothed, pinnatifid, or divided leaves, and single or 

 corymbed heads. Heads many-flowered, with yellow disk and 

 white or yellow rays. Scales of the broad in- 

 volucre imbricated and with scarious margins. 

 Receptacle flat or convex. Achenes striate. 



C. Leucanthemum, OX-EYE DAISY. . Stem 

 erect, simple or forked ; basal leaves spatulate- 

 obovate, on long slender petioles, the blades 

 erenate-dentate ; middle and upper stem-leaves 

 oblong or oblanceolate, coarsely toothed ; in- 

 volucral bracts narrow, brown-margined; rays 

 white. Fields. June to August. 



Achillea Millefolium, 

 Yarrow. 



SENECIO 



Herbs, with alternate leaves and solitary or corymbed heads. 

 Heads many-flowered, with yellow rays. Involucre cylindrical to 

 bell-shaped, sometimes with a few bractlets at base. Receptacle 

 flat. Pappus of numerous very soft and capil- 

 lary bristles. 



Chrysanthemum Leucan- Senecio, Ragwort; a, S. aureus; b, S. Balsamitae, 

 themum, Ox-eye daisy. showing variation of leaves. 



S. aureus, GOLDEN RAGWORT. Stems erect, at first tomentose, soon 

 glabrate; lower leaves long-petioled, round-ovate to slightly oblong, 

 erenate-dentate; stem leaves lyrate to laciniate-pinnatifid ; uppermost 

 sessile and clasping; achenes glabrous. 



