260 SUMMER FLOWERS. 



(147) Chrysanthemum. 



* Hay-florets wTiite. 



C. Leucanthemum : stems erect, simple or slightly branched, 

 1-2 feet high ; leaves obovate, coarsely-toothed, on long stalks, 

 those of the stem narrow, sessile ; flower-heads solitary on 

 long terminal peduncles, rather large; involucral bracts bor- 

 dered by a brown, scarious edge. — Oxeye Daisy. — Pastures, 

 banks, etc. Fl. June to August. 



C. Parthenium: biennial; stems erect, branching, a foot 

 or more high ; leaves pinnate, the segments ovate or oblong, 

 pinnatifid, toothed ; flower-heads numerous, about half an inch 

 in diameter, in a terminal corymb; achenes crowned by a 

 minute toothed border. — ^Feverfew. — Roadsides, and iu waste 

 places. Fl. June, July. This plant is often called Fyrethrum 

 Parthenium^ and is a strongly scented aromatic medical herb, 

 with bitter tonic properties. 



C. inodorum : annual ; stem erect or spreading, branched, 

 1-1^ feet high; leaves twice or thrice pinnate, with numerous 

 narrow-linear, almost capillary lobes ; flower-heads rather 

 large, on terminal peduncles; involucral bracts with a brown 

 scarious edge ; receptacle convex or hemispherical, not conical ; 

 achenes ribbed, crowned with a minute entire or four-toothed 

 border. — Fields and waste places. Fl. July, August. 



Var. maritimum : stems diffuse; leaves rather fleshy; 

 flowers smaller. — Sea coast. 



** Bay florets yelloiv. 



C. segetum : annual ; stem glabrous, erect, one foot high 

 or more, with spreading branches ; lower leaves obovate and 

 stalked, the upper ones narrow and stem -clasping, with a few 

 teeth at the top; flower-heads rather large, on terminal pe- 



