COMPOSITAE (COMPOSITE FAMILY) 



123 



CHRYSANTHEMUM 



Herbs, with toothed, pinnatifid, or divi'ded 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 Mtllefohum, 



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- 

 themum, Ox-eye daisy. 



Senecio, Ragwort; a, S. aureus; b, S, Balsamitae, 

 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. 



