60 COMPOSITE. Stokesia. 



2. STOKESIA. VHer. sert. Angl. p. 27 ; DC in ann. mus. Par. 16. p. 

 134, Sfprodr. 5. p. 71 ; Cass. diet. bl. p. 64. 



Heads many-flowered ; the exterior flowers much larger and assuming the 

 form of a ray. Involucre subglobose, bracteate at the base, imbricated in 

 several series, appressed; the exterior scales with a somewhat spreading fo- 

 liaceous ciliate-spinulose appendage ; the inner oblong, somewhat ciliate. 

 Receptacle fleshy, naked. Corolla palmate, sprinkled with resinous glo- 

 bules ; the marginal ones much deeper cleft within. Anthers included. 

 Branches of the style semi-subulate. Achenia short, 4-sided (rarely 3-sided), 

 glabrous, terminated with a broad quadrangular areola. Pappus of 4-5 

 elongated rather rigid awn-like (white) chaffy scales, deciduous. — An erect 

 somewhat branching perennial herb ; with a tomentose stem, and large heads, , 

 resembling a Carthamus or Centaurea, terminating the branches. Leaves 

 alternate, oblong-lanceolate, glabrous or slightly glaucous, minutely glandu- 

 lar-punctate, entire; the uppermost sessile and serrate-spinulose near the 

 somewhat dilated base ; the lower tapering into a margined petiole ; the in- 

 volucrate bracts resembling the upper leaves. Flowers blue, showy. 



S.cyanea (L'Her. ! 1. c.)—Ait.! Kew. {ed. 2) 4. p. 491; DC! I.e. 

 " Carliiamus Ifevis, Hill, Kew. 57. t. 5." C. Carolinianus, Michx. ! in herb, 

 mus. Par. Cartesia centauroides, Cass, in bull, philom. 1816,^. 198. 



S. Carolina, "introduced into England by Mr. James Gordon about the 

 vear 1766." Hort. Kew. " Georgia, Mr. Tatnall,'" in herb. Nutt. ! Covington, 

 Louisiana, Drummond ! — This is one of the rarest plants of the United 

 States. It is, or recently has been, cultivated in Mr. Buist's garden at Phil- 

 adelphia. The plant collected by Drummond is inadvertently called Cen- 

 taurea Americana, in the account of his United States collections, in Comp. 

 to bot. mag. I. p. 48. 



3. ELEPHANTOPUS. Linn. ; Geertn.fr. t. 165; Endl. gen. p. 362. 



Heads 3-5-flowered, aggregated into terminal or axillary glomerules ; the 

 flowers all equal and similar. Involucre compressed ; the scales about 8, in 

 2 series, dry, oblong, alternately plane and conduplicate ; the interior usually 

 3-nerved. Receptacle naked or obscurely alveolate. Corolla palmate (one 

 of the sinuses being more deeply cleft than the others) ; the segments acumi- 

 nate. Filaments smooth. Branches of the style semi-subulate. Achenia 

 oblong, somewhat compressed, many-ribbed, hairy. Pappus in one or two 

 rows of several chaffy bristles, dilated at the base. — Erect perennial herbs, 

 with alternate mostly sessile feather- veined leaves. Corolla violet-purple. 



§ Pappus in a single series ; the bristles straight and equal : glomerules ter- 

 minating the branches, somewhat corymbed, involucrate. — Ei,ephantopus, 

 Cass., Less., DC. 



1. E. Caroli7navus {Wi]]d.) : stem hairy, corymbosely branched above; 

 leaves somewhat hairy and scabrous ; the radical ones ovate or obovate-ob- 

 long, crenate-serrate, tapering into a long margined petiole ; the cauline ob- 



