330 COMPOSITE. Heliawthtjs. 



ciliate ; the exterior with acute or acuminate herbaceous squarrose-spreading 

 tips; rays 5-6 ; pappus of 2 small subulate chaffy awns. — H. divaricatus, 

 Michx. ! fl.. 2. p. 141 ; Ell. ! sk. 2. ^;. 428 ; not 'of Linn. H. strun)osus, 

 var. pallidus, Ell. ! I. c. p. 420. H. parvillorus, BcrnJi. in Spreiig. syst. 3. 

 f. 617/ but not of H. B. S^- K., (which apparently has the priority in 

 publication.) 



l3. leaves more sharply serrate, the soft pubescence of the lower surface 

 turninc; brownish ; heads rather larger. — H. divaricatus var. ferrugineus. 

 Ell. ! X c. 



y. upper leaves ovate ; heads rather larger ; involucre more squarrose. — 

 H. trachelifolius, Hook. ! comp. to hot. mag. 1. p. 98. 



Thickets, and in alluvial soil, Upper Canada! {Goldie, in herh. Hook.) 

 Western Pennsylvania! Ohio! Indiana! and Kentucky! to the western 

 part of Georgia! and to Louisiana! y. Covinglon, Louisiana, Drnmmond f 

 July-Sept. — Stems growing usually in tufts, 3-6 feet high, 2-3-cholomously 

 branched. Leaves clothed beneath with a soft pubescence, and sprinkled 

 with minute resinous dots, very veiny, and somewhat reticulated, abruptly 

 contracted into distinct petioles an inch or less in length (it is evidently by a 

 misprint or error of the pen, tliat Elliott describes the petioles as 3 to 6 inches 

 long!): the lower 6 to 10 inches long, 2-3 broad at the base, tapering to 

 a long acuminate point, the upper similar but smaller and often entire, or 

 frequently elongated lanceolate and sliglitly falcate. Heads somewhat ob- 

 long, nearly half an inch long, about one-third of an inch in diameter. ChafF 

 of the receptacle oblong, pubescent at the apex, and more or less 3-1oothed. 

 Rays nearly an inch long. Throat of the disk-corolla scarcely longer than 

 the lobes, pubescent towards the base, as well as the short tube. Pappus 

 shorter than the nearly glabrous achenia. — Somewhat variable in foliage, (kc; 

 but remarkable for its very few rays, which are large for the size of the head, 

 its smooth much-branched stems, and thin distinctly petioled leaves. 



29. H. Schweinitzii : stem strigose-pubescent, branching above; leaves 

 opposite (or those of the branches alternate), narrowly lanceolate, tapering to 

 a slender acute point, obscurel}' and sparingly serrulate, narrowed at the 

 base, nearly sessile, triplinerved, very scabrous above, densely tomentose 

 and canescent beneath ; heads on slender canescent peduncles terminating 

 the dichotomoLis branches; scales of the involucre ovate-lanceolate, acute or 

 acuminate, hairy, the tips stjuarrose ; rays mostly 8; jiappus of 2 lanceolate 

 or ovate-lanceolate chaffy scales. 



Near Salem, North Carolina, ScJiwcirr/fz ! and in Mecklenburg County, 

 Mr. M. A. Curtis ! — Stem apparently 3 to 6 feet high. Leaves thickish ; 

 the lower 6-10 inches long, and scarcely an inch wide near the base; the up- 

 per 3-5 inches long, half an inch wide, more closely sessile. Heads rallier 

 larger than in H. microcephalus : involucre somewhat hirsute-canescent; 

 the scales rather shorter than tJie disk. ChatF of the receptacle more or less 

 3-toothed and hairy at the summit. Pappus shorter than the glabrous 

 achenia. 



30. H. lavigatus : stem glabrous and glaucous, branching; leaves oppo- 

 site, or the u]ipermost alternate, oblong-lanceolate, acute, sessile, entire or 

 obscurely serrulate, with scabrous margins, smooth and glabrous on both 

 sides, veiny, indistinctly triplinerved ; heads terminating the dichotomous 

 branchlets; scales of the involucre ovate, appressed, mostly with acuminate 

 spreading tips, nearly glabrous ; rays 6-8 ; pappus of 2 lanceolate or ovate 

 concave chalFy scales, and usually of 2 to 4 intermediate squamellffi. 



Southern States? — Tbe ticket of our specimen having been lost, we are 

 uncertain as to its particular locality. It belongs to a plant 4 or 5 feet high, 

 branching after the manner of H. microcephalus; with somewhat coriaceous 

 smooth leaves, which are less veiny as well as more obscurely triplinerved 



