318 CICHOEIACEAE. 



crests near the apex. Corollas yellow. Stigmas slender, filiform- clavate* 

 Achenes fusiform, the inner ones, at least, slender-beaked. Pappus single, the 

 bristles plumose. 



1. H. radicata L. Plants perennial, 2-6 dm. tall: leaves mostly 4-17 cm. 

 long, hirsute; blades spatulate in outline, coarsely toothed or pinnatifid: 

 heads 2.5-4 cm. wide: corollas with very narrow ligules: achenes fusiform,, 

 the bodies 3-3.5 mm. long, spinulose, those of the inner ones at least shorter 

 than the filiform beaks. S. Occasional, in wet pastures. Nat. of Eu. 

 Spr. and sum. 



11. KBIGIA Schreb. Annual herbs. Leaves mainly basal: blades nar- 

 row, toothed or pinnatifid. Heads slender-peduncled. Involucre narrow: 

 bracts narrow, reflexed at maturity. Corollas light-yellow. Achenes decidedly 

 broadened upward. Pappus of 5 scales about i as long as the achene and also- 

 of 5 or 10 bristles. 



1. K. virginica (L.) Willd. Plants 0.3-4 dm. tall: leaf -blades spatulate to- 

 nearly linear, 2-12 cm. long: involucres mostly less than 7 mm. long: corollas 

 6-7 mm. long: achenes fully 1.5 mm. long, finely ribbed. Common, in open 

 sandy places. Spr. DWARF-DANDELION. 



12. CYNTHIA D. Don. Perennial herbs. Leaves mainly basal: blades 

 narrow or broad, entire, repand, or pinnatifid. Heads long-peduncled. Invo- 

 lucre stout: bracts narrow, reflexed at maturity. Corollas bright-yellow. 

 Achenes not broadened upward. Pappus of 10-15 minute scales and more 

 numerous bristles. 



1. C. virginica (L.) D. Don. Plants 1-7 dm. tall: leaf -blades spatulate, 

 oblong or oval, not elongate, entire or repand or slightly lyrate-pinnatifid: 

 involucres mostly over 8 mm. long: corollas 10-12 mm. long: achenes 2 mm. 

 long, coarsely ribbed. N. Occasional, in meadows. Sandstones and shales. 



Sum. CYNTHIA. 



13. CICHOBITJM [Tourn.] L. Perennial rigid herbs. Leaf -blades 

 toothed or pinnatifid, or crisped. Heads sessile or nearly so. Involucre firm or 

 rigid: outer bracts spreading, the inner erect. Achenes 5-ribbed or 5-angled. 

 Pappus of 2 or 3 rows of scales. CHICORY. SUCCORY. 



1. C. Intybus L. Tap-root elongate, tough. Stem 3-15 dm. tall, rigidly wide- 

 branched: blades of the stem-leaves oblong to lanceolate, pinnatifid, toothed,, 

 or entire: involucres 10-12 mm. long; bracts lanceolate to linear, the outer 

 glandular- ciliate : corollas sky-blue or white: ligules 10-20 mm. long: achenes 

 2-2.5 mm. long. Common, in fields and on roadsides. Nat of Eu. Sum. 



COMMON-CHICORY. BLUE-SAILORS. 



