34 



COMPOSITAE. 



[Vol. III. 



2. Euthamia leptocephala (T. & 



G.) Greene. Western Bushy 



Golden-rod. (Fig. 3719.) 



Solidago leptocephala T. & G. Fl. N. A. 2: 

 226. 1841. 



Euthamia leptocephala Greene, Mem. Torr. 

 Club, 5: 321. 1894. 



Stem much branched, smooth, i^-2^ 

 high. Leaves linear to linear-lanceolate, 

 acuminate or acute at each end, 1 -nerved, 

 or with a pair of indistinct lateral nerves, 

 rough-margined, those of the stem usually 

 2 / -3 / long, 2 // -3 // wide; heads 2 // -3 // 

 high, rather narrower than those of the 

 preceding species, sessile in the clusters 

 of the flat-topped inflorescence; bracts of 

 the involucre linear-oblong; disk-flowers 

 3 or 4; ray-flowers 7-10. 



In moist soil, Missouri to Louisiana and 

 Texas. Aug. -Oct. 



3. Euthamia Caroliniana (L,.) Greene. Slender Fragrant Golden-rod. 



(Fig. 3720.) 



Erigeron Carolinianum L. Sp. PI. 863. 



1753- 

 Solidago tenuifolia Pursh, Fl. Am. Sept. 



540. 18 14. 

 Euthamia Caroliniana Greene, Mem. Torr. 



Club, 5: 321. 1894. 



Resembles the preceding species but is 

 smaller, glabrous and somewhat resinous, 

 seldom over iyi high. Leaves narrowly 

 linear, entire, acuminate, sessile, narrowed 

 at the base, i-nerved or with an additional 

 pair of faint lateral nerves, j. f -j/ long, 

 \"-2" wide, punctate, often with smaller 

 ones clustered in the axils, the resinous 

 dots minute; heads about \y 2 " high, very 

 numerous and crowded in the dense 

 corymbose cyme; involucre oblong-cam- 

 pauulate, its bracts oblong; rays 6-12; 

 disk- flowers 4-6. 



In dry sandy soil, eastern Massachusetts 

 to Illinois, Florida, Louisiana and Texas, 

 mainly near the coast. Aug.-Oct. 



24. BRACHYCHAETA T. & G. Fl. N. A. 2: 194. 1841. 



An erect, perennial herb, with the aspect of a Golden-rod. Leaves alternate, the lower 

 and basal ones large, cordate, long-petioled, the upper ovate, short-petioled or sessile. \ Heads 

 composed of both tubular and radiate flowers, in a terminal narrow spike-like thyrsus. Invo- 

 lucre narrowly campanulate, its bracts coriaceous, imbricated in few series, the outer suc- 

 cessively smaller. Receptacle small, naked. Rays small, yellow, pistillate. Disk-flowers 

 perfect, their corollas tubular, somewhat expanded above, 5-cleft. Anthers obtuse and en- 

 tire at the base. Style-branches flattened, their appendages lanceolate. Achenes 8-10- 

 ribbed. Pappus a single row of scale-like bristles, shoiter than the achene. [Greek, short- 

 bristle, referring to the pappus.] 



A monotypic genus of eastern North America. 



