•Vol. hi.] 



CHICORY FAMILY. 



263 



2-6 lobes ou the petiole, the uppermost oblong or lanceolate, sessile, acute, much smaller, 

 mostlj' entire; heads very numerous, 3"-6" broad; involucre oblong-cylindric, 2"-t," high, 

 of about S linear glaucous principal bracts and several very small outer ones. 



..^long; roadsides and in waste places, Quebec and Ontario to New Jersey and Pennsylvania. Also 

 ■on the Pacific Coast. Naturalized from Europe. Called also Bolgan leaves, Ballogan. June-Sept. 



3. SERINIA Raf. Fl. Ludov. 149. 1817. 

 [Ai-OGON Ell. Bot. S. C. & Ga. 2: 267. 1824 ] 



Low glaucescent branching annual herbs, with alternate clasping entire or lobed leaves, 

 or those of the stem sometimes appearing as if opposite, and few small long-peduncled heads 

 of yellow flowers. Involucre broadly campauulate, its bracts about S, equal, membranous, 

 becoming concave after flowering. Receptacle flat, naked. Rays truncate and 5-toothed at 

 -the apex. Anthers sagittate at the base. Style-branches slender. Achenes obovoid, S-io- 

 ribbed, contracted at the base, rounded at the summit. Pappus none, or a mere vestige. 

 [Greek, small chicory.] 



Three known species, natives of the southern I'nited States. 



I. Serinia oppositifolia (Raf.) Kuntze. 

 Serinia. (Fig. 3515.) 



JCrigia nf>posili/olia Raf. Fl. Ludov. 57. 1817. 

 Apogoii Inimilis Ell. Bot. S. C. & Ga. 2: 267. 1824. 

 Serinia oppositifolia Kuntze, Rev. Gen. PI. 364. 1891. 



Glabrous throughout, or slightly glandular-pubescent 

 along the ends of the peduncles, branched from the base, 

 4'-io' high. Basal and lower leaves petioled, oblong-lan- 

 ceolate or spatulate in outline, acute or obtuse, entire, 

 lobed or pinnatifld, 3'-5' long, 2"-6" wide; upper leaves 

 mainly sessile, clasping, alternate, or appearing as if oppo- 

 site, usually entire, smaller; peduncles very slender, some- 

 times 4' long; heads I ^2 "-2" broad; bracts of the involucre 

 acute or acuminate, about the length of the rays. 



In fields, Missouri {according to Tracy ): Kansas to Te.\as, east 

 to South Carolina and Florida. March-May. 



4. ADOPOGON Neck. Elem. i: 55. 1790. 

 [Krigia Schreb. Gen. PI. 532. 1791.] 

 .'Annual or perennial herbs, with scapose or leafy stems, basal or alternate, entire sinuate- 

 dentate or pinnatifld leaves, and small or middle-sized heads of yellow or orange flowers, 

 solitary at the end of the scape or its branches. Involucre campanulate, its herbaceous bracts 

 in I or 2 scries, with no exterior shorter ones. Receptacle flat, naked. Rays truncate and 5- 

 toothed at the apex. Anthers sagittate at the base. Style-branches slender, obtusish. 

 Achenes turbinate or oblong, 15-20-riblied, truncate. Pappus in i or 2 series, the outer of 

 thin broad rounded scales, the inner of slender naked bristles, or these sometimes wanting 

 in the southwestern A. occidetitale. [Greek, a pleasing beard.] 



Five known species, natives of North America. 

 Stem i-leaved and branched above, bearing 2-6 heads. i. A. Virginicicm. 



^Scape naked, monocephalous. 



Head about i' broad; pappus-bristles 12-20; perennial. 2. A. Dandelion. 



Head 3"-?" broad; pappus-bristles 5-7; annuals. 



Bracts of the involucre 5-8, remaining erect, firm, keeled. 3. 



Bracts of the iuvolucre 8-18, at length refle.xed, thin. 4. 



A. occidentale. 

 A. Carolinianiim. 



. I. Adopogon Virginicum (L.) Kuntze. 

 Cynthia. Virginia Goatsbeard. (Fig. 3516.) 



Tragopogon I'irginicum L. .Sp. PI. 789. 1753. 

 Krigia amplexicaulis Nutt. Gen. 2: 127. 1818. 

 Cynthia V'irginica Don, Edinb. Phil. Journ. 12: 309. 1829. 

 Adopogon Virginicum Kuntze, Rev. Gen. PI. 304. 1891. 



Perennial, glabrous and glaucous; stem i°-2° high, 

 l-leaved and branched above, bearing 2-6 long-pedun- 

 cled heads at its summit and an oblong clasping leaf 

 below the middle. Basal leaves tufted, runcinate, sin- 

 uate, denticulate, or entire, 2^-7' long, narrowed into 

 margined petioles; heads about i^' broad; involucre 

 of 9-15 lanceolate nerveless bracts 3"-4" long; achenes 

 nearly oblong; pappus of 10-15 small oblong scales 

 and an equal or greater number of capillary bristles; 

 flowers orange to reddish orange. 



In moist woods and meadows, Massachusetts to southern 

 Ontario and Manitoba, Georgia, Kentucky, Missouri and 

 Kansas. Ascends to 4000 ft. in Virginia. May-Get. 



