Chrtsopsis. composite. 253 



ge7i. 2. p. 151. Erigeron nervosum, Willd.! spec. 3. p. 1953. E. glandu- 

 losum, Poir. ex DC. Diplopa])pns gram inifoli lis, Less, in Linncea, 5. p. 310. 

 D. sericeus. Hook, compan. to bot. mag. 1. p. 97. Pityo|isis (Sericophyl- 

 kim) graininitblia & argentea, Nuit. in trans. Amer. phil. soc. (n. set.) 

 7. 1). 318. 



/3. achenia rather shorter ; stem less leafy towards the summit. — C. argen- 

 tea, Nutt. I. c. ; Ell. I. c. ; DC. ! I. c. Inula argentea, Pcrs. syn. 2. p)- 

 452, ex DC. I. graminifolia /3. tenuifolia, Ton.! in ann. lye. New York, 

 2. p. 212. 



Dr}^ sandy soil, Delaware to Florida ! Alabama ! and Western Louisiana ! 

 July-Oct.— Stem 1-2 feet high, usually leafy throughout. Leaves with 

 botl: surfaces similar and shining ; the pubescence at length often partly de- 

 ciduous; the leaves of the branches somewhat subulate. Heads variable in 

 size. Pappus whitish or brownish. — Tiiis species varies considerably as to 

 the size and breadth of the leaves ; but C. argentea can scarcely be distin- 

 guished, even as a variety. In both forms the involucre is either manifestly 

 or very slightly glandular, and sometimes a glandular pubescence takes the 

 place of the silky hairs on the branchlets and peduncles. 



2. C. vligantha {Chapman [ mss.) : stem simple, slender, glandular and 

 naked above, bearing 2-4 heads; leaves lanceolate or spatulate-lanceolate, 

 silky with closely appressed shining hairs, nervose, entire ; heads on elonga- 

 ted naked peduncles; scales of the campanulate involucre subulate-lanceo- 

 late, glandular, somewhat pubescent ; achenia linear, elongated, silky-vil- 

 lous ; exterior pappus nearl}^ setiform. 



Damp pine barrens of Middle Florida, Dr. Chapman! April-May. — 

 Stem 12-18 inches high, somewhat leafy and silky below the middle, but 

 glandular and entirely naked or with a few minute bracts above. Leaves 

 either eloniiated as in the preceding, or short and linear-spatulate, or even 

 oblong and obtuse, on the same plant. Peduncles 2—1 inches long. Heads 

 mostly larger than is usual in C. graminifolia — This is a vernal species, 

 closely allied to the preceding, but perhaps sufficiently distinct. It cannot 

 be the Inula argentea of Persoon, or of later authors : the achenium and pap- 

 pus are wholly similar to the preceding. — We have seen Mexican specimens 

 almost intermediate between this species and the preceding. 



3. C. pinifolia (Ell.): nearly glabrous; stem rigid, branching; leaves 

 crowded, narrowly linear, rigid, carinate-nerved ; the uppermost setaceous; 

 heads mostly solitary terminating the branchlets; inner scales of the involu- 

 cre linear-lanceolate, somewhat membranaceous and lanate-ciliate at the 

 apex; achenia linear, villous; exterior pappus somewhat chaffy or squa- 

 mellate. — Ell.! sk. 2. p. 335; DC! j^^odr. 5. p. 326. Erigeron retro- 

 flexum, Poir. suppl. 2. p. 464 .'' Pityopsis pinifolia, Nutt.! I. c. 



Sand-hills between the Flint and Chatahoochee Rivers, C4eorgia, Elliott! 

 Sept.-Oct. — Stem 1-2 feet high. Lower leaves 4-6 inches long. Heads 

 rather large. Exterior pappus very short, whitish ; the interior reddish- 

 brown. 



4. C.falcata{'EA\.): stem lanate-villous, often branched ; leaves crowded, 

 linear, mucronate, rigid, spreading or falcate, about 3-nerved, entire, hairy 

 or at length nearly glabrous ; heads (small) paniculate-corymbed ; the pedi- 

 cels slender; scales of the campanulate involucre villous-pubeseent ; ache- 

 nia oblong-linear; exterior ])appus setiform. — Ell.! I- c. p. 336 (note); 

 DC. ! I. c. Inula falcata, Ptirsh, fl. 2. p. 532. I. (Chrysopsis) Mariana, 

 /?. Nutt. ! I. c. Pityopsis falcata, Nutt. ! in trans. Amcr. phil. soc. I. c. 



Pine barrens. New Jersey ! and Long Island, New York ! Connecticut, 

 Dr. Kohbins ! Nantucket, Massachusetts^ Mr. T. A. Green ! July-Sept. — 

 Stems 6-10 inches high, stout, very leafy. Pappus cinnamon-colored. — A 

 very distinct species. 



