COMPOSITAE. 



[Vol. Iir. 



5. Eupatorium leucolepis T. & G. 



Wliite-bracted Thoroughwort. 



Justice-weed. (Fig. 3617.) 



E. leiicolet>is T. &. G. Fl. N. A. 2: 84. 1841. 



Slender, puberulent, branched above, i°- 

 2° liigh. Leaves opposite, sessile, linear, 

 oblong or oblong-lanceolate, glaucous greeu, 

 rough, thick, blunt-pointed, sparingly ser- 

 rate, or the upper entire, i'-3' long, 2"-$" 

 wide, obscurely 3-nerved and narrowed at 

 the base; inflorescence cymose-pauiculate; 

 heads 3"-4" high, about 5-flowered; bracts 

 of the narrow involucre imbricated in about 

 3 series, white, lanceolate, acute, densely 

 canescent, the outer shorter; flowers white. 



In moist places, pine-barrens of New Jersey 

 to Florida, Georgia and Louisiana. Aug.-Sept. 



4. Eupatorium serotinum Michx. 



Late-flowering Thorougliwort. 



(Fig. 3616.) 



E. seioliinan Michx. Fl. Bor. Am. 2; loo. 1803- 

 Much branched, finely and densely pubes- 

 cent, or glabrate below, 4°-8° high. Leaves 

 all slender-pctioled, lanceolate or ovate-lan- 

 ceolate, acuminate, sharply serrate, 3'-6' 

 long, yz'-2' wide, 5-nerved at the base, the 

 lower opposite, the upper alternate; heads 

 very numerous, the inflorescence broadly 

 cymose; heads 7-15-flowcred, 2"-3''' high; 

 involucre campanulate, its bracts pubescent, 

 linear-oblong, obtuse or truncate, imbricated 

 in 2 or 3 series, the outer shorter ; flowers white. 

 In moist soil, Marjland to Florida, west to 

 Iowa, Kansas and Te.xas. Sept. -Nov. 



involucre greenish. Eastern Long Island and 



6. Eupatorium album L. White 

 Thoroughwort. (Fig. 3618.) 



Enpalorium album L. Mant. ill. 1767. 

 Eupalotium glandtilosum Jlichx. Fl. Bor. Am. 



2: 98. 1S03. 



Pubescent with spreading hairs, branched 

 above, i°-3° high. Leaves opposite, sessile 

 or nearly so, oblong or oblong-lanceolate, 

 obtuse, obtusish or the upper acute at the 

 apex, narrowed at the base, coarsely serrate, 

 i'-4' long, %'-i' wide, rather thick, mi- 

 nutely scabrous above, more or less pubes- 

 cent beneath; inflorescence cymose-pani- 

 culate; heads numerous, 4"-5''' long, 5-7- 

 flowered; involucre narrow, its bracts bright 

 white, linear, cuspidate, imbricated in 3-4 

 series, the outer short and usually pubescent, 

 the inner much longer, glabrous and shining; 

 flowers white. 



In sandy soil, Long Island to Florida, west to 

 Louisiana. Ascends to 3000 ft. in Virginia. Aug.- 

 Sept. 



Eupatorium album subvenosum .\. Gray, Syn. 

 Fl. I. Part 2, 98. 1884. 



Leaves i'-2' long, acute, less coarsely .serrate, 

 prominently 3nerved at the base; bracts of the 

 New Jersey. 



