CARDUACEAE. 



397 



1. Emilia sonchifolia (L.) 

 DC. Purple Emilia. (Fig. 435.) 

 Annual, glabrous, or somewhat pu- 

 bescent below, usually branched, 

 8-2° high. Basal and lower leaves 

 petioled, sometimes 5' long, ob- 

 ovate to oblanceolate, repand-den- 

 tate to lyrate-pinnatifid, obtuse or 

 acute at the apex; upper leaves 

 lanceolate, sessile, sagittate-clasp- 

 ing, dentate, lobed, or entire; 

 heads loosely corymbose, many- 

 iiowered; peduncles very slender 

 or filiform; involucre 5"-6" high, 

 its bracts linear-lanceolate, acute, 

 at length reflexed; flowers rose, or 

 purple. [Cacalia sonchifolia L.] 



Waste garden grounds, Harring- 

 ton House, 1909. Introduced. Na- 

 tive of the East Indies. Widely nat- 

 uralized in ttie West Indies. Flowers 

 in spring and summer. 



Emilia sagittata (Vahl) DC, ARubw-LEAVED Emilia, also East Indian, 

 with lanceolate acute sparingly serrate, sagittate-clasping leaves 6' long or 

 less, the heads of orange or red flowers in long-stalked clusters, was grown in 

 the garden at Somerville in 1914. [Cacalia sagittata Vahl.] 



11. POLYMNIA L. 



Perennial herbs (some tropical species woody), with opposite membranous 

 lobed or angled leaves, or the lower alternate, and mostly large corymbose- 

 paniculate heads of both tubular and radiate yellow or whitish flowers, or rays 

 sometimes obsolete. Involucre hemispheric or broader, of about 5 large outer 

 bracts, and more numerous smaller inner ones. Receptacle chaffy. Ray- 

 flowers pistillate, fertile, subtended by the inner involucral bracts, the ligules 

 elongated, minute or none. Disk-flowers subtended by the chaffy scales of the 

 receptacle, perfect, sterile, their corollas tubular, 5-toothed. Anthers 2-toothed 

 at the base. Pappus none. Achenes thick, short, turgid, glabrous. [From 

 the Muse Polhymnia.] About 10 species, natives of America. Type species: 

 Folymnia canadensis L. 



