1. G. squarròsa, Dunal. Leaves spatulate- to linear-oblong; involucre squarrose; achenes not toothed; pappus-awns 2 or 3.--Prairies, Minn., southward and westward; Evanston, Ill.--Var. NÙDA, Gray. Rays wanting. About St. Louis and westward. 2. G. lanceolàta, Nutt. Leaves lanceolate or linear; involucral scales erect or the lower tips spreading; achenes with 1 or 2 short teeth at the summit; awns 2.--Prairies, eastern Kan. to Ark., and southward. 13. HETEROTHÈCA, Cass. Characters as in Chrysopsis, but the achenes of the ray thickish or triangular, without pappus or obscurely crowned, and those of the disk compressed, with a double pappus, the inner of numerous long bristles, the outer of many short and stout bristles.--(From ἕτερος, _different_, and θήκη, _case_, alluding to the unlike achenes.) 1. H. Lamárckii, Cass. Annual or biennial, 1--3° high, bearing numerous small heads; leaves oval or oblong, the lower with petioles auricled at base, the upper mostly subcordate-clasping.--S. E. Kan., and southward. 14. CHRYSÓPSIS, Nutt. GOLDEN ASTER. Heads many-flowered, radiate; the rays numerous, pistillate. Involucral scales linear, imbricated, without herbaceous tips. Receptacle flat. Achenes obovate or linear-oblong, flattened, hairy; pappus in all the flowers double, the outer of very short and somewhat chaffy bristles, the inner of long capillary bristles.--Chiefly perennial, low herbs, woolly or hairy, with rather large often corymbose heads terminating the branches. Disk and ray-flowers yellow. (Name composed of χρυσός, _gold_, and ὄψις, _aspect_, from the golden blossoms.) [*] _Leaves narrowly lanceolate or linear; achenes linear._ 1. C. graminifòlia, Nutt. _Silvery-silky_, with long close-pressed hairs; stem slender, often with runners from the base, naked above, bearing few heads; _leaves lanceolate or linear, elongated, grass-like, nerved, shining_, entire.--Dry sandy soil, Del. to Va., and southward. July--Oct. 2. C. falcàta, Ell. _Stems_ (4--10´ high) very woolly; _leaves crowded, linear, rigid, about 3-nerved_, entire, _somewhat recurved or scythe-shaped, hairy_, or smooth when old, sessile; heads (small) corymbed.--Dry sandy soil on the coast, pine barrens of N. J. to Nantucket and Cape Cod, Mass. Aug. [*][*] _Leaves oblong or lanceolate, entire or slightly serrate, mostly sessile, veined, not nerved; achenes obovate, flattened._ 3. C. gossýpina, Nutt. _Densely woolly all over; leaves spatulate or oblong, obtuse_ (1--2´ long); heads larger than in the next.--Pine barrens, Va., and southward. Aug.--Oct. 4. C. Mariàna, Nutt. _Silky with long and weak hairs_, or when old smoothish; _leaves oblong_; heads corymbed, on glandular peduncles.--Dry barrens, from S. New York and Penn., southward, near the coast. Aug.--Oct.