Genus 23. 



THISTLE FAMILY. 



399 



2. Euthamia floribunda Greene. Small-headed 

 Bushy Golden-rod. Fig. 4263. 



E. floribunda Greene, Pittonia 5: 74- 1902. 



Solidago polycephala Fernald, Rhodora 10: 93. 1908. 



Finely roughish-pubescent, at least above, panicu- 

 lately branched, 2-3 high. Leaves linear-lanceo- 

 late, the larger 2'-^ long, 2*"-3" wide, 3-nerved, 

 those of the branches much smaller, spreading or 

 deflexed; heads numerous, small, l4"-2" high, ses- 

 sile or very nearly so in small corymbed clusters ; 

 involucre turbinate, its glutinous bracts puberulent, 

 their triangular-lanceolate green tips appressed. 



Fields and borders of marshes, southern New Jersey, 

 and recorded from eastern Pennsylvania. Aug-Oct. 



3. Euthamia leptocephala ( T. & G.) Greene. 

 Western Bushy Golden-rod. Fig. 4264. 



Solidago leptocephala T. & G. Fl. N. A. 2 : 226. 1S41. 



Euthamia leptocephala Greene, Mem. Torr. Club 5: 321. 

 1894. 



Stem smooth, I l-2h high, branched above. Leaves 

 linear-lanceolate, acuminate or acute at each end, 

 I-nerved, or with a pair of indistinct lateral nerves, 

 rough-margined, those of the stem usually 2'-3' long, 

 2"-4" wide; heads about 3" high, rather narrow, ses- 

 sile in the clusters of the flat-topped inflorescence ; 

 bracts of the subturbinate involucre linear-oblong, 

 scarcely viscid; disk-flowers 3 or 4; ray-flowers 7-10. 



In moist soil, Missouri to Louisiana and Texas. Aug- 

 Oct. 



4. Euthamia gymnospermoides 

 Greene. Viscid Bushy Golden- 

 rod. Fig. 4265. 



Euthamia gymnospermoides Greene, Pittonia 

 5: 75- 1902. 



Solidago gymnospermoides Fernald, Rhodora 

 10 : 93. 1908. 



Usually branched from the base or from 

 below the middle, glabrous, resinous, ii-2 

 high, the branches strict, ascending. Leaves 

 narrowly linear, i"-2" wide, 3' long or less, 

 light green, i-nerved, or the larger 3-nerved ; 

 heads numerous, sessile in the clusters of 

 the broad nearly flat-topped inflorescence ; 

 involucre turbinate, about 2*" high, its 

 bracts linear-oblong, blunt, very viscid ; 

 disk-flowers 4-6; ray-flowers about 12. 



Prairies, Nebraska to Kansas, Texas and 

 Louisiana. Aug.-Oct. Confused, in our first 

 edition, with the preceding species. 



