268 COMPOSIT.E. Borrichia. 



ovate appendage. Branches of the style (in the disk) elongated, rather thick, 

 somewhat terete, acutish, hispid from the summit to near the base. Achenia 

 somewhat cuneiform, 3-4-angled, crowned with a short coroniform 4-toothed 

 (or nearly obsolete) pappus. — Shrubby (American and mostly tropical) mari- 

 time plants. Leaves opposite and somewhat connate, oblong or linear, cori- 

 aceous or fleshy. Heads solitary, pedunculate. Flowers yellow. 



1. B. arborescens {DC.) : glabrous; leaves lanceolate, mucronately acute, 

 narrowed at the base, entire; exterior scales of the involucre ovate, rather 

 acute, appressed ; the interior obtuse, membranaceous; chaff' of the recepta- 

 cle spatulate, obtuse. — Buphthalmum arborescens, Linn. spec. {ed. 2.) 2. p. 

 1273. Asteriscus, &c.. Dill. Elth. t. 38, f. 43. Corona-solis frutescens, &c., 

 Plum. Amcr. ed. Barm. l. 16, f. 2. Diomedea unidentata, Cass, in diet. I. c. 

 13. p. 284. D. glabrata, H. B. c^ K. 



Key West, Mr. Blodgett! — A large shrub. 



2. B. frutescens (DC) : canescent with a minute appressed silky pu- 

 bescence ; leaves lanceolate or spatulate, obtuse, attenuate and usually 1-2- 

 toothed towards the base ; those of the branches often toothless, sometimes 

 linear; exterior scales of the involucre somewhat spreading, rather acute; 

 the interior and the chaff"of the receptacle cuspidate with a rigid point. — DC. I 

 prodr. 5. p. 489. Buphihalmum frutescens, Linn. ! spec. {ed. 1) 2. p. 903 ; 



Walt. ! Car. p. 212 ; Michx. ! fl. 2. p. 130 ; Pursh, fl. 2. p. 563 ; Ell. sic. 

 2. p. 408. Asteriscus frutescens &c. Dill. Elth. t. 38, /. 44. Chrysanthe- 

 mum fruticosum &c., Catesb. Car. 1. t. 93. Diomedea bidentata, Cass. I. c. 

 On the coast, Virginia! to Florida! and Key West! June-Oct. — A 

 small shrubby |)lant. The leaves vary from obovate or broadly spatulate to 

 linear; in all the states being either obtuse or acuminate-mucronate, entire, 

 or with one or two sharp salient teeth near the base, or remotely denticulate 

 throughout: the exterior scales of the involucre are ofl en rather appressed; 

 the inner either canescent, or nearly glabrous witli ciliate margins, and the 

 spinous points of the chaff' are at lirst rather shorter than the flowers. 

 Hence perhaps B. argentea, B. Peruviana, and Buphth. lineare, Willd. are 

 not sufficiently distinct. 



68. ECLIPTA. Linn. mant. Ga^rtn.fr. t. 169 ,- DC. prodr. 5. p. 489. 



Heads many-flowered ; the ray-flowers pistillate, ligulate, short, in a 

 single series ; those of the disk tubular and perfect. Scales of the involucre 

 10-12, in a double series, foliaceous, ovate-lanceolate, somewhat acuminate. 

 Receptacle flat, furnished with linear-filiform or bristly chaff', as long as the 

 achenia. Corolla of the ray-flowers with a narrow ligule rather shorter than 

 the involucre ; of the disk inflated above, 4- (rarely 5- ?) toothed. Appen- 

 dages of the style hairy. Aclienia 3-4-sided ; those of the disk mostly by 

 compression 2-sided, the sides roughened or tuberculate, somewhat hairy at 

 the summit. Pappus none, or an obsolete denticulate crown. — Chiefly an- 

 nual scabrous or strigose herbs; the stems erect, diff'use, or procumbent. 

 Leaves opposite, serrate or nearly entire, lanceolate or oblong, feather-veined, 

 or somewhat tripliuerved. Heads on axillary solitary or geminate, or ter- 

 minal and ternate, peduncles. Flowers white. Anthers brownish. Juice 

 of the stem turning black. 



