396 



CARDUACEAE. 



1. Senecio vulgaris L. Com- 

 mon Groundsel. (Fig. 434.) An- 

 nual; stem hollow, usually much 

 branched, 6-15' high. Leaves 2- 

 6' long, the lower spatulate in out- 

 line, petioled, obtuse, the upper 

 sessile or clasping at the base, 

 more deeply lobed or incised, their 

 segments oblong, dentate; heads 

 several or numerous in the 

 corymbs, nearly 3" broad; bracts 

 of the involucre linear, often 

 blackish-tipped; rays none; achenes 

 slightly canescent. 



Common in waste and culti- 

 vated grounds. Naturalized. Native 

 of Europe. Widely naturalized in 

 North America. Flowers from spring 

 to autumn. 



Senecio mikanioides Otto, German or Italian Ivy, South African, is a 

 glabrous herbaceous vine, several feet long, with broadly ovate petioled cor- 

 date, sharply 5-7-lobed leaves 2'-4' broad, and numerous discoid heads of 

 yellow flowers in terminal and axillary clusters; it is sometimes grown in 

 flower-gardens. 



Senecio Cineraria DC, Dusty Miller, of the Mediterranean region, a per- 

 ennial herb l°-2i° high, the stems, petioles, involucre and under surfaces of 

 the pinnatifid leaves densely white-woolly, the heads of yellow flowers about 1' 

 broad, the ray-flowers about 12, is commonly grown in flower-gardens. [Cin- 

 eraria maritima L.] 



10. EMILIA Cass. 



Herbs, with alternate and basal, often clasping leaves, and long-peduncled, 

 solitary or loosely corymbose heads of pink purple or orange, tubular perfect 

 and fertile flowers. Involucre nearly cylindric, its bracts in a single equal 

 series. Receptacle flat, naked. Corolla-limb cylindric. Achenes nearly terete 

 or 5-angled. Pappus of numerous, soft, white, capillary bristles. [Name un- 

 explained.] About 5 species, natives of the Old World tropics. Type species: 

 Emilia flammea Cass.] 



