ORDER 70. COMPOS1 T^. 191 



leaty scales, tlie inner of about 8 linear ones. Receptacle chaffy. Pappus 

 scaly. Cypselee not rostrate, obscurely 5-sided. Oriental herbs with 

 bright blue flowers, about 20 in a head. 



1 C. Intybna L. Root Ivs. runcinate, cauline bract-like ; heads axillary, subsessile, 



mostly in pairs, li Dooryards, waysides, E. 2 3f. Rays large, showy, 5-toothed. 

 The root, or its extract, is often mixed with coffee. July Sept. Europe. 



2 C. ENDIVIA. Endive. Root leaves sinuate-dentate or pinnatifld, cauhne auricled at 



base ; heads axillary, 86 together. (I) India. Cultivated as a salad. 



102. KRIGIA, Schreb. DWARF DANDELION. Involucre many-leaved, 

 nearly simple, equal. Recep. naked. Cypsela? turbinate, striate, 5-angled. 

 Pappus double, consisting of 5 broad, membranous scales, alternating with 

 as many slender, scabrous bristles. Ariulescent, small. Leaves lyrately 

 lobed. Scapes simple. Heads solitary, with 20 30 yellow flowers. 



1 K. Vlrjsinlca Willd. Early Ivs. round-spatulate, subentire, the later toothed and 



pinnatifld ; scapes 15 or more, 1' 10' high. Rocks and sands. lids. 56". May + . 



2 K.. Carolinla.ua N. Early Ivs. lin.-oblanceolate, few-toothed, later Ivs. lyrate-pin 



natifld, or angular-lobed ; scapes 16 or more, 2' 12'. Sands. S. Feb. May. 



103. CYNTHIA, Don. Invol. nearly simple, of equal, narrow scales. 

 Recep. flat, alveolate. Pap. double, the outer minute, scaly, inner copious, 

 capillary. Gyp. short. If Lvs. alternate or all radical. Fls. 15 20, yellow. 



1 C. Ylrgiiilca Don. St. few-leaved, subumbellate ; Ivs. lance-obi., repand-dentate. 



rarely lobed. petiolate. N. Y. to 111., and S. Very smooth. 1 2f. lids. 9". June. 



2 C. Dandelion DC. Acaulescent ; scapes leafless, simple, 1-flwd. ; Ivs. spatulate-obl. 



to lance-lin., entire or toothed, rarely pinuatifld. Md. to Ga. and Tex. 6 18'. Mar.-Jn 



104. LEONTODON, L. AUTUMN DANDELION. Invol. imbricate, the 

 outer sc. very short Recep. naked. Pap. plumous, persistent on the some- 

 what rostrate cypsela. Acaulescent herbs with yellow fls., many in a head. 



L. an turn null* L. Scape branching; ped. scaly-bracted ; Ivs. lanceolate, dentate- 

 pinuatifld. smoothish. Waysides, meadows, <fcc. E. N. Eng. 6' 20'. lids, several, near 

 1' in diameter. July Oct. Europe. 



105. TRAGOPOGON, L. VEGETABLE OYSTKR. Invol. simple, of 

 many leaves. Recep. naked. Pap. plumous. Cyp. longitudinally striate, 

 contracted into a long, filiform beak, (g) European, with long, grass-like Ivs. 



T. porrlfollim L. Invol. much longer than the corolla ; Ivs. lance-linear; ped. thick- 

 ened upward ; pappus tawny Waysides, &c. N. Y. (Ilankenson). 3f. June. $ J 



106. HIERACIUM, Tonrn. HAWKWEED. Invol. more or less imbri- 

 cated, ovoid, many-flwd. Sc. very unequal. Cyp. not rostrate. Pap. a single 

 row of copious, tawny, fragile bristles, y Lvs. alternate, entire or toothed. 



* Heads 40-50-flwd. Invol. more or less imbricated. Cyp. blunt at t( p Nos. 1, -> 



* Heaclfc 12-30-fl wd. Involucre simple. a Achenia contracted at the top Nos. 3, 4 



a Achenia not contracted upward. . .Nos. 5, 6 



1 II. Caiiadense MX. St. erect, subvillous, leafy, corymbed; Ivs. sessile, ovate-obi, 

 to lanceolate, acute, with few acute teeth ; invol. strongly imbricated ; fruit brown. 

 Rocky woods. N. Eng. to Wis., and N. 1-8f. S^nt. Hds. near 1' broad. Ang., Sept 



