424 
BOTANY. 
Gaillardia^ pixnatifida, Ton-. T. S^- G., Fl 2. SOC— Perennial, canes 
cent; stem 8-15' liigli, leafy ami sparingly l)raiic!ic(l ; leaves 1-.^' l<.ng, pin- 
nalitid, the lobes lew, oblong-linear, acnle ; heads 1- 2' bi-oud : rnvs yellow, 
or purple toward the base;" pappus-scales lanceolate, llic harUclhilc awn 
not exceeding the purplish disk-flowers; fimbrilhe of the receptacle subtdaie, 
not dilated at the base. — Nebraska and Arkansas to New^ Mexico and Arizona ; 
Chiliuahaa, Mexico. A show^ flower; the rays in Dr. Palmer's specimens 
are pure yellow and have the tube very long and slender. 
Palafoxia^ linearis, Lagasca. SufFruticose (?), cinereous-pubescent; 
leaves linear or lanceolate, obtuse, with two obscure sul)inarginal nerves be- 
side the midril); peduncles and slender concave-carinate involucral scales 
beset with copious flesh-colored glands and rigid spreading white hairs; 
flowers 10-12, flesh-colored, all tubular, the lobes hairy at the tips ; pappus 
of 4-8 une(|ual linear scales, the very strong midncrve slightly excurrent. 
Plant a foot or more high; heads 8-10" long. New Mexico to California 
and southward into Mexico. A form with much larger heads is noticed in 
PI Fendl, ii. 95, as occurring in California. 
Page 172. Ch.enactis stevioides, H. & A. The specimens have a 
pappus of only four short obtuse scales. 
Page 173. Hymenopappus luteus, Nutt. Densely clothed with a fine 
white (sometimes deciduous) wool; stems about a foot high, "several from a 
thick caudex," corymbose at the top ; leaves mostly radical, 1-2-piniiately 
divided into numerous narrow Hnear lobes 2-4'' long; heads rather large; 
involucral scales 8-12, oblong, scarious-margined, shorter than the disk • 
iGAILLARDIA, For<JEKOux. ITe.-uls inany-iloworea, radiate; rays nentral, deciduous nr^~ 
nerved, the apex trifid : di.sk-dowci.s porf.M-f, tlie f ul.e sliort, the 5-cloffc limb liispid AvitU articulate nsiiallv 
colored linirs. Receptacle convex, u.siially tiiiibrillate. Involucral scales iu 2-:] series, from a rioi*! 1/3^^'. 
ninniug into a leafy appendaye loiioer tlian the disk. Branches of the style terminated hy a loii.r awl' 
sliai>ed hispid appenda.ue. Aclienia oldon-- or invi'i sely ityramidal, villons/ Pappus of G-10 mejnbran" ' 
or hyaVine scah's, the niidnerve i)rodnced into a slender awn.— Xortli American herbs, more or less \ T"^ 
c ut or olandnlar. I.e.iv. s alternat.>, tlic lower ones petioled and often lobed, the upper sessile and r 
Ilea.ls on long naked pe.lun. les. Rays yelhnv, often safFron-colored or brownish-pnmle nt n, i 
Disk-flowers yellow or violet. ^ ' 
= PALAF0XIA. Lag vsca. Ib ads in-many-dowered ; rays deeply 3-cleft, pistillate, sometimes in, 
l.rrl.-etly developed or wantn,-: disk-dowers with a shMidrr tube and a deeplv r>-<deft expan 1 1 
th,- io...s smooth or hairy at th. tip. spreading or recurved, very narrow. Involucral sc^'lcs oldon""!: 
Imrar. iuM-baeeons or nn nd.runareons, at first appn-ssed, at Iruoth stellately spreadin^r .n.u.b u . 
than tl,e disk-liow. rs. R.t. p( a. ], small, dat. naked. ISraneh. s „f th. stvle v.-r! 1^ '1 ^""^^^^ 
tish. .iand„h.r-pn..s..n,. .V,...,ia .m ar, ...nd.r. t..ngU.d, pub, s':. m M J ^'^^^ 
<.f4-l. linear or .,l,,ong n.n,„ran..,:s s<.ales. awnl-ss. .ut with a strong J^^T^^^^TT" 
p,-.r(ly MH losed in the invulueral srab s .and often with a sh.u'ter pappus -Herbs or ff t 
and Mexiean. bran.-hing, strigose or glandular-puiH.scent. Leaves mostly alternate linenr nlT^' '^7T 
l-'J-n. rveil, obtuse, entire. Flowers Avliite, llesh-colored or pnrplish. lanceolate , 
