g-j-^ COMPOSIT.E. W'hilntya. 



(from 4 inches to a foot in length) : knaves nearly all once or twict' i)innatili(l : ht'iul 

 larg(i : rays 40 or r)() iu about 2 ranks, iMineate-ohlanci'olatc (iully half an incii 

 lou"): alicnes as in tlm prccedin}", smooth and glabrous or with some resiimus 

 globules. — Torr. in Kmory Kep. 144, t. G. 



Ill tlio Ciililoniiiui collofUiiii i)f ('oullcr. Very piolmltly coHccUhI in Arizmm or Soiioni, wlicm 

 this apucioa occurs, as also further eustwurd. 



65. WHITNEYA, Uiuy. 

 Head niany-llowered, with 7 to 'J pistillate fertile rays : the disk-llowers appar- 

 ently perfect, but infertile. Involucre campanulate, of 9 to 12 thin-herbace(jus 

 lanceolate-oblong or ovate-lanceohito and ec^ual scales, in a single or somewhat 

 ilouble series, more or less concave at base. Keceptaclo conical, somewhat foveolate, 

 villous. Kays large, elongated, minutely 3-toothed at the apex, many- (10 - 1C-) 

 nerved, the nerves also prominent on the short tube, becoming thin-papery, and 

 persistent on the mature akene. Disk-corollas tubular-fumielform, with a very 

 short proper tube, persistent on the infertile ovary, obtusely S-toothed. Antbcrs 

 linear. IStyle-bninches of the disk-Howers linear, hirsute-i)uberulent externally, 

 extended a little beyond the stigmatic lines into an obtusish tip. Akenes of the 

 ray oblong somewhat obcompressed, obtuse at both ends, lightly several-nerved, 

 wholly destitute of papi)us : those of the disk similar, but sterile. — A low jjcrennial 

 herb of the Sierra Nevada, canescent ; the mostly simple stems bearing 2 or 3 pairs 

 of opposite entire or obscurely denticulate leaves, and solitary or few slender- 

 peduncled showy heads of golden yellow llowers. — Gray, iu Troc. Am. Acad. vi. 

 549, & ix. 195. 



1. W. dealbata, Ciray, 1. c. About a foot high, from slender and naked creep- 

 ing rootst(Jcks : lisives obovate or spatidale and tapering into petioles, or the np|ier 

 small and huice.ohite, lioaiy with a very line and close woolliness : rays oblong-Ian 

 ceolate, about an inch in length. 



In open woods, &;c., at an elevation of 5,000 to 7,000 feet, from above the Mariposa Sequoia 

 grove northward along tlic Sierra Nevada, Jirciver, Bolandcr, Ordij, kc. A handsome plant, of 

 a very distinct genus, whicli was dedicated to the accomplished Director of the Calit'ornian State 

 Geological Survey, in the prosecution of wliich it was discovered. It seems to occur through a 

 coiisitrerahle range in the Sierra ; and it is likely to be prized in cultivation. The original 

 character of the genus is lu^re luatcriidly corrected. The rays commonly bear rudiments of sta- 

 mens in the form of sterile lilamciits : their lower surface is puberulcnt, as also the akenes and 

 nearly the whole surface of the disk-corollas. 



66. BURRIELIA, DC, Iknth. 

 Head several-flowered, with one to five very short rays which hardly ecjual the 

 more numerous disk-flowers, all fertile. Involucre cylindraceous, of 4 or 5 (rarely 3) 

 oblong thin-herbaceous scales. Receptacle subulate or almost filiform, rough with 

 projecting points on which the akenes are inserted. Tube of the corollas slender, 

 as long as the campanulate 4-5-lobed limb and as the barely spreading oval or 

 oblong ligule. Anthers oblong, more or less auricled or sagittate at base, tipped 

 with a slender lanceolate or linear-liliform appendage. Style-branches tipped with 

 subulate-acute minutely hirsute ajipendages. Akenes long-linear or somewhat fusi- 

 form, llattish, with indistinct marginal or other nerves. Pappus of flattened subu- 

 late awns or awn-like rigid scales, fully as long as the corolla, of the disk-llowers 

 2 to 4, of the ray one or two or rarely none. — Small and slender annuals (all 



