Gaillardia. composite. 365 



Div. 1. Gaillardie^;, DC. (excl. gen.) — Receptacle not cIiafTy, nor 

 very deeply alveolate. Rays fertile or neutral, or sometimes none. 



Subdiv. 1. Eu G Ai L L A RDIE/-E. — Branches of the style in the disk-flowers 

 long and filiform (nearly as in Eupatoriaceae), hispid or glandular-pubescent. 



115. GAILLARDIA. Fougeroux, in mem. acad. sci. Par. (1786) p. b; 

 DC. ■prodr. 5. p. 56 ; Gay, in ann. sci. nat. {ser. 2) 11. p^ 57. 



Galardia, Lam. (ill. t. 708), Michx., Nutt., 4' Less. 



Heads many-flowered, radiate ; the ray-flowers neutral, in a single series, 

 deciduous. Scales of the involucre in about 3 series, very acute, foliaceous, 

 more or less callous and appressed or erect at the base, above spreading or 

 at length reflexed ; the exterior largest. Receptacle convex or hemispheri- 

 cal, fimbrillate (the fimbrillfe rigid or corneous and elongated), or in one spe- 

 cies nearly naked. Rays cuneiform, palmately 3-cleft or toothed at the 

 summit. Corolla of the disk with a short tube, and an elongated cylindra- 

 ceous somewhat inflated 5-toothed limb ; the teeth usually subulate, and hispid 

 with jointed hairs. Branches of the style terminated with a very long and 

 acute filiform hispid appendage. Achenia obpj^amidal, involucrate with 

 villous hairs. Pappus of 6-10 membranous 1-nerved scales, the nerves pro- 

 duced into awns about the length of the corolla. — Branching (North Ameri- 

 can) herbs, with the habit of Scabiosa, more or less pubescent with jointed 

 hairs. Leaves alternate, mostly punctate with glandular or pellucid dots, 

 entire, sometimes toothed or lobed ; the lower ones often petioled, the upper 

 sessile. Heads on slender naked peduncles terminating the stem or 

 branches. Flowers of the disk violet, or sometimes yellowish. Raj's yellow 

 or purple, often 2-colored, dotted with resinous globules, as also the style. 

 Anthers pale yellow. 



* Pappus of the ray-Jloivers aivned like that of the disk. 



1. G. lanceolala (Michx.) : biennial? puberulent; stem usually branched; 

 the branches elongated ; leaves lanceolate or linear, entire or very sparingly 

 serrate or denticulate, ciliolate, mostly obtuse, mucronulate-acuminate; the 

 lower ones somewhat spatulate and slightly petioled, the upper sessile ; in- 

 volucre about the length of the disk, in about 2 series, neither callous nor 

 hirsute at the base ; corolla of the disk with long and narrow subulate teeth ; 

 chaff" of the pappus (7-9) narrowly lanceolate ; the fimbrillse of the receptacle 

 minute abortive teeth, or none I — Michx. ! fl. 2. j^- 142 ; Gaij .' in ann. sci. 

 nat. I c. p. 63 ; not of DC. G. bicolor, Pursh, Jl. 2. p. -572. (excl. syn. 

 Fouger., DHer. is;c.) ; Nutt.! gen. 1. p. 175; EU. ! sk. 2. p. 449; Hook.! 

 compan. to hot. mag. 1. p. 98. Leysera Caroliniana, Walt. Car. p. 211, ex 

 Pursh, (perhaps erroneously.) 



/?. rays abortive or none. — Polypteris integrifolia, DC! prodr. 5. p. 659, 

 excl. all the synonymy. 



Dry pine woods and barrens. South Carolina! to Florida! Alabama! 

 Louisiana ! Arkansas ! and Texas ! May-Aug. — Root certainly biennial. 



