112 COMPOSITE. Liatris. 



= = Leaves all very slender : heads 4 or 5 lines long. 



L. tenuifolia, Nutt. Glabruus or with a few bristles below : stem strict and slender, 2 to 

 4 feet high : leaves rigid, attenuate-liuear and when dry with revolute margins ; radical and 

 lower cauliue very uumerons and crowded, a foot or less long, a line or two wide ; upper 

 cauline short, becoming acerose or filiform and reduced to setaceous bracts : heads about 

 5-flowered and 4 lines long, very numerous iu a strict virgate raceme (of a foot or two in 

 length), which occasionally develops into a panicle: involucre of about 10 oblong bracts, 

 not punctate, the inner more or less scarious and purplisli : pappus strongly barbellate. — 

 Gen. ii. 131 ; Ell. Sk. ii. 275 ; Torr. & Gray, 1. e. L. kevigatu, Nutt. Trans. Am. JPhil. Soc. 1. e, 

 285, a large form with coarser radical leaves. — Dry pine barrens, N". Carolina to Florida. 

 ++ -w- Involucral bracts or most of them acuminate or mucronate-tipped, 

 = Hirsute with short many-jointed hairs. 



L. Garberi, Grat. A foot or two high, hirsute with man3'-jointed spreading hairs, or the 

 linear and rigid strongly punctate leaves glabrate : upper leaves very short, linear-subulate, 

 erect : heads 6-7-flowered, 5 or 6 lines long, crowded in a dense spike : involucre campanu- 

 late ; its bracts (about 10) greenish and very glandular-punctate, villous-hirsute, in age 

 glabrate ; outer ones ovate, inner oblong, all obtuse and conspicuously mucronate-pointed : 

 pappus minutely barbellate. — Proc. Am. Acad. xv. 48. — • Tampa, Florida, Garber. 



= = Involucre glabrous or nearlj' so, narrow, indistinctly glandular-punctate, 3-5-flo\vered 

 (bracts variable); pappus more distinctly barbellate toward the base. 



L. Chapmanii, Tokk. & Gk.w. Tomentnlose-puberulent, glabrate : stem a foot or two 

 high, strict and rigid: leaves short, linear, or the lower oblong-linear and obtuse (1 to 3 

 inches long) and the upper small and narrow: heads numerous, mostly 3-flowered, erect in 

 a strict and dense virgate spike: involucre cylindrical; its bracts thinnish, lanceolate or the 

 short outer ones oblong, mostly acute and mucronate or short-acuminate, sometimes point- 

 less : flowers large for the size of the head, two thirds of an inch long ■ pappus half-inch long. 

 — Fl. ii. 502 ; Chapm. Fl. 191. — Dry sandy ridges. Middle Florida, first coll. by Chapman. 



L. pauoiiiora, Pcrsh. Glabrous or minutely puberulent : stem slender, often weak and 

 declining : leaves rigid, linear, mostly narrow : heads numerous in a virgate often secund 

 spiciforra raceme (of 6 to 24 inches in length), when secund on short spreading or recurving 

 pedicels : involni're cylindraceous ; its bracts thinnisli, oblong, or the short outermost oval 

 and the inner lanceolate, mostly mucronate-acnte or acuminate : flowers 5 or 6 and pappus 

 4 or 5 lines long. — Fl. ii. 510; Chapm. 1. c. L. secunila, Fll. Sk. ii. 278 ; Torr. & Gray, Fl. 

 ii. 71. — Sandy pine woods, S. Carolina to Florida. 



16. GARBfiRIA, Gray. (The late Dr. A. P. Garber, the re-discoverer.) — 

 Proc. Acad. Pliilad. Nov. 1879, 379, & Proo. Am. Acad. xvi.. 70. Liatris 

 § LejHoclinitim, Xutt. in Trans. Am. Pliil. Soc. n. ser. vii. 285 ; Torr. & Gray, 

 Fl. ii. 76. Leptodinium, Gray, Proc. Am. Acad. xv. 48, not Bentli. & Hook. 



G. fruticosa, Gray, 1. c. Shrub 4 to 6 feet high, branching, leafy: branchlets and involu- 

 cre puberulent : leaves with base of a short petiole articulated with the stem, vertical by a 

 twist, glabrous, pale and of the same hue both sides, nearly Aeinless, obovate, refuse (barely 

 inch long) : heails (half-inch long) numerous in fastigiate naked terminal cymes : involiu-re 

 much shorter than the pappus. — Liatris fruticosa, Nutt. in Am. .Jour. Sci. v. 299. Lepto- 

 dinium fruticosum, Gray, 1. c. — S. Florida, Ware, Garber. Found by the latter on dry sand- 

 ridges of the western coast, at Tampa Bay. Lower leaves opposite according to Niittall. 



17. CARPHEPHORUS, Cass. (Kap<^o?, cliafF, and <^opd?, bearing.) — 

 Perennials, with no bulbiform stock or tuber ; the rose-]iuri)le or Avliite flowers in 

 cymosely disposed hciids ; all N. American, late-flowcriug. — Bull. Philom. 1816, 

 & Diet. vii. 148; DC. Prodr. v. 132 (one siiccies) ; Torr. vt Gray, Fl. ii. 6."). 



§ 1. Pappus of copious and unequal minutely barbell;ite bristles, occupying 

 more than one series : flowers purple : stem .simple, leafy : even the lowest leaves 

 alternate, cauline ones sessile : Atlantic-States species, herbs. 



