122 COMPOSITE. Chrysopns. 



C. gramini folia : akenes the same. Sk. ii. 335. Pityopsis pinifoUa, Nutt. 1. c. Georgia, on 

 sand-hills between the Flint and Chattahoochee, Jackson (Ell.), Baldwin. 



C. f alcata, ELL. Low, seldom a foot high, branched from the base, very leafy to the top, 

 loosely lauate, at length glabrate, not glandular : leaves from narrowly to oblong-linear, 

 obscurely few-nerved, rigid (1 to 3 inches long) ; the cauline spreading and sometimes 

 falcate-recurving : heads mostly numerous and cymose, small : involucre campanulate (3 or 

 4 lines long). Sk. ii. 33G (note) ; DC. 1. c. ; Torr. Fl. N. Y. i. t, 56. Jnula fakuta, Pursh, 

 Fl. ii. 532. Pityopsis falcatn, Nutt. Trans. Am. Phil. Soc. 1. c. Barren land along the coast, 

 Cape Cod to New Jersey. 



* * Leaves not ncrvose or gramineous: involucre hemispherical: akenes turbiiiate-obovate and 

 turgid-flattish (or in the last species more oblong), 3-5-nerved: outer pappus squatr.ellate or 

 setulose. 



-1 Pubescence arachnoid-lanate or cottony-villous and flocculent, deciduous, leaving a glabrous or 

 minutely scabrous and glandular surface, sometimes glubrate from the first except on rosi:late 

 tufts of radical leaves : Atlantic species. 



H- Heads comparatively small, seldom half-inch high, commonly cymose: arachnoid hairs sparse 

 or wanting : stems very leafy : root no more than biennial. 



C. SCabrella, TORE. & GRAY. Glandular-scabrous even to the rather obtuse bracts of the 

 involucre, destitute of cobwebby hairs : stem rather stout : leaves oblong-lanceolate or 

 spatulate : outer pappus setiform. Fl. ii. 255. Pine woods, Tampa, Florida, Leavenwort/i, 

 Garber. Too near the broad-leaved form of the next. 



C. trichophylla, NUTT. Villous when young with very long and soft usually scattered 

 hairs which mostly have a stouter base : stem slender, 1 to 3 feet high : leaves oblong-spatu- 

 late or oblauceolate and obtuse, or upper linear : bracts of the involucre smooth, acute : 

 outer pappus squamellate-setulose. Gen. ii. 150; Torr. & Gray, 1. c. Diplopappus tricho- 

 phi/llits, Hook. Comp. Bot. Mag. i. 97. Dry ground, N. Carolina to Florida and Louisiana, 

 in the low country, chiefly on and near the coast. Broad-leaved form approaches 

 C. Mariana : narrower comes too near the next. 



C. hyssopifolia, NUTT. Glabrate and smooth, but the rosulate linear-spatulate or some- 

 times broadly spatulate (barely inch long) radical leaves floccose-woolly when young: stem 

 slender, virgate, 2 or 3 feet high, very leafy with spatulate-liuear to almost filiform (inch or 

 so long) glabrous leaves : heads often numerous and cymose : otherwise as the preceding. 

 Jour. Acad. Philad. vii. 67. C. trichophylla, var. hyssopifolia, Torr. & Gray, Fl. ii. 254, excl. 

 syn. Hook. Sand-hills and dry pine barrens of Florida, on the coast. 



H- -H- Heads larger: wool floccose: akenes often with 2 to 4 salient and glandular-thickened 

 nerves or ribs: outer pappus more squamellate : leaves occasionally witli a few serratures or 

 denticulations, oblong, or the lower spatulate or obovate and uppermost lanceolate. 



C. Mariana, NUTT. A foot or two high from a perennial root, loosely silky-villous with 

 arachnoid hairs, glabrate in age : leaves thinnish, green : heads several in a corymbiform 

 cluster: involucre glabrous but granulate-glandular. Gen. 1. c. (under Imda) ; Torr. & 

 Gray, 1. c. ; Bertol. Misc. vii. t. 2. Jnula Mariana, L. Spec. ed. 2, ii. 1240. Aster Caro- 

 linianus pilosus, etc., Mill. Ic. t. 57. Di/ilopappits Afarianus, Hook. 1. c. Pine barrens and 

 sandy soil, coast of New York to Florida and Louisiana. 



C. gossypina, NUTT. 1. c. A foot or two high from a biennial root, densely lanate, the wool 

 becoming tomentose-floccose : leaves all obtuse, mostly short and spatulate or oblong : heads 

 terminating peduuculifonn branches or loosely corymbose: involucre very woolly, or be- 

 coming glabrate or even glandular. Torr. & Gray, 1. c. ; Bertol. Misc. vii. t. 1. Tnula 

 yossypina, Michx. Fl. ii. 122. /. alandulosa, Lam. Diet. iii. 259? Erigei'on pilosum, Walt. 

 Car. 206. Chri/sopsis dentala, Ell. Sk. ii. 337, a form with lower leaves few-toothed. C. de- 

 cumbens, Chapm. Fl. 217, a coast form with glandular peduncles and involucre. Sandy pine 

 barrens, N. Carolina to Florida and Alabama, in the low country. 



t -t Pubescence from hispid to silky-villous, persistent: root perennial. Includes a multitude 

 of forms, seemingly not distinguishable into species. 



C. Vill6sa, NUTT. 1. c. A foot or two high : leaves from oblong to lanceolate, rarely few- 

 toothed, usually cinereous or canescently strigose or hirsute and sparsely hispid along the 

 margins and midrib, an inch or two long : heads mostly terminating leafy branches some- 

 times rather clustered, naked at base or foliose-bracteate : involucre campauulate, 4 or ."> 



