308 COMPOSITE. RuDBECKiA. 



1-lJ inch long; the disk dark purphsh-brown. Pappus a minule margin. 

 Appendages of' the style lanceolate or linear-subulate. 



* * Disk dark piirple or brown, subglobose or broadly conical: appendages of the style 

 very short and obtuse, or somewhat capitate. 



t Chaff glabrous and very dark purple at the summit, as well as the corolla. 



3. R. fulsida (Ait.): stem hirsute or strigose-hispid, branching, the branches 

 slender, naked at the summit ; leaves strigose, sparingly denticulate ; the 

 cauline sessile, spatulate-oblong or oblong-lanceolate, narrowed towards the 

 base, partly clasping, somewhat, triplinerved; the radical ovate, petioled ; 

 scales of the involucre oblong or lanceolate, sometimes as long as the spread- 

 ing oblong ravs ; chafT of the receptacle linear-oblong, obtuse or mucronu- 

 late, glabrous or slightly ciliate at the summit, ralher shorter than the corolla; 

 pappus coroniformr minute. — Ait.! Keiv. (ed. 1) 3. j). 251 ; Bot. mag. <. . 

 1996 ,• WiUd. spec. Z. j). 2248 ; Ell. sk. 2. p. 546 ; Bart. fl. Amer. Sept. 1. t. 

 54 ,- Darlingt. fl. Cest. p. 480 ; DC! jJrodr. 5. p. 556. R. chrysomela, 

 Michx. ! fl. 2. 2). 143. R. aspera, Pers. ; Desf. cat. R. spathulata, Pursh, 

 fl,. 2. p. 574. 



(i. slender ; leaves narrowly spatulate-oblong or lanceolate; heads small ; 

 rays seldom exceeding the disk. — R. gracilis, Nuit. ! gen. 2. p. 178, (& R. 

 spathulata, in herb. acad. Philad.) R. discolor. Ell. sk. 2. p. 454. (In his 

 note, instead of" to the preceding species," to R. fulgida, should doubtless 

 be read.) 



y. slender; upper part of the stem and the leaves minutely strigose-pu- 

 bescent ; the latter spatulate, acute, mostly entire, much attenuate at the 

 base, only the lowest somewhat clasping ; involucre shorter than the rays. 

 — R. spathulata, Michx. ! fl. 2. p. 144;" not oi: Pursh, nor of Nutt. gen., ex 

 spec, in herb. Muhl. ! which appears to be Dracopis. 



&. stem stouter, often simple ; leaves lanceolate or linear-lanceolate, most- 

 ly entire, clothed with loose or spreading (and at length somewhat deciduous) 

 hirsute or hispid hairs. (Pubescence somewhat strigose; rays about the 

 length of the involucre. — R. discolor, Pursh! fl. 2. p. 574.— Hairs often 

 slender from a papillose base ; heads large; rays exceeding the involucre. — 

 R. discolor, DC. I. c.) 



Dry soil, Pennsylvania to Georgia ! and Florida ! (a. & /5.) y. Moun- 

 tains of Carolina, Mlchaux ! Liiicolnton, N. CaroUna, Mr. Curtis! (a 

 smoother dwarfish state of var. a. growing apparently in shade.) 6. Flori- 

 da! to Western Louisiana! and Arkansas! Aug.-Oct. — Stem 1-3 feet 

 high. Rays about 12, 2-3-cleft at the apex, deep orange-yellow, the lower 

 surface and the base in dried specimens often reddish-orange. — Resembles 

 R. hirta in some of its forms, and like that species variable in the size of its 

 heads and rays; but generally distinguished by the short rays, the leaves 

 more or less tapering below and dilated at the insertion, with a shorter pu- 

 bescence, and always different in ihe very sliort and obtuse appendages of 

 the style, and dark purple (instead of dull purplish-brown) disk. 



4. R. speciosa (Wender) : stem hirsute or liispid, loosely branched ; the 

 branches elongated, naked above ; leaves roughish-hirsute or pubescent, 

 coarsely and irregularly toothed or incised; the upper lanceolate, sessile ; 

 the lower ovate or ovate-lanceolate, acute or acuminate at both ends, petioled, 

 triplinerved ; the radical 5-nerved, on long petioles ; scales of the involucre 

 linear-lanceolate, unequal, about half the length of the numerous spreading 

 elongated rays ; chaff" of the receptacle oblong-linear, mostly acute and gla- 

 brous, rather shorter than the corolla ; pappus coroniform, minute. — " Wender 

 in flora (1829), 1. p. 30"; Schrad! in herb. DC. 1832; DC! prodr. 5. p. 

 656. R. fulgida, Nutt. ! herb. ; Sullivant ! cat. Ohio pi. ^v. (Varies, with 



