Gymnopsis. composite. 317 



punctate and nearly naked above, strigose-hairy beneath; scales of the invo- 

 lucre oblong-spatulate, hirsute, in a single series; chaif of the receptac, lein- 

 cluding the" very glabrous and shining' achenia, at length tuberculate and 

 scabrous, tubular; pappus coroniform, fimbriate. Hook.! ic. fl. t. 145,- 

 DC. 'prodr. 7. {mant.) p. 289. 



Texas, Brummond .' — Plant strigose-hirsute; the stems apparently 2 feet 

 or more in height. Leaves ovate-lanceolate ; the uppermost alternate. 

 Rays rather large, bright yellow, oblong. >^Disk-flowers about 30 ; the co- 

 rolla (yellow) slightly dilated upwards, with 5 elongated and very narrowly 

 linear lobes. Stamens inserted near the base of the corolla ; anthers brown- 

 ish, tipped with a slender lanceolate appendage. Appendages of the style 

 very long, hirsute, filiform-linear. The edges of the chafty scale which en- 

 closes each achenium at length cohere firmly. — Nearly allied apparently to 

 G. dentata and G. Schiediana of De Candolle ; but the genus seems to in- 

 clude incongruous plants. 



95. ENCELIA. Adans. ; Cav. ic. 1. t. 61 ; DC. prodr. 5. p. 566. 



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

 of the disk tubular, perfect. Involucre somewhat imbricated in 2-3 series, 

 equalling the disk. Receptacle flat : the chaflT membranaceous, navicular. 

 Branches of the style terminated by a cone. Achenia compressed, flat, 

 emarginate, destitute of pappus, with the margins densely woolly or villous. 

 — Shrubby plants of the Pacific coast of America, more or less canescent ; 

 the leaves alternate, ovate or oblong, petioled, entire or nearly so. Heads 

 few, terminating the paniculate branches. Ray and disk yellow. 



1. E. Californica (Nutt.) : erect, much branched ; the branches puheru- 

 lent-canescent ; leaves lanceolate-ovate, acute, sometimes angular-toothed at 

 the obtuse or rounded base, abruptly petioled, 3-7-nerved, nearly glabrous, 

 the margins scabrous ; involucre very villous ; achenia nearly glabrous ex- 

 cept the margins, which are very densely villous-hirsute. — Nutt..' in trans. 

 Amer. phil. soc. {n. ser.) 7. p. 357. 



Dry hills, near St. Barbara [or St. Diego], Nuttail .' April.— A low, 

 rather showy, brittle shrub, with the scent of Calendula or Gaillardia. 



96. VIGUIERA. H. B. l]: K. nov. gen. 8f spec. 4. p. 224, t. 379 ; 



DC. prodr. 5. p. blS. 



Heads many-flowered ; the ray-flowers few, neutral ; those of the disk 

 perfect. Scales of the hemispherical involucre nearly in a single series, 

 somewhat equal, with foliaceous tips or appendages. Receptacle either co- 

 nical or flattish ; the persistent chaff" embracing the achenia. Appendages 

 of the style subulate, hispid. Achenia obovate-cuneiform, pubescent. Pap- 

 pus of 4 small denticulate squamellas and 2 awns, deciduous. — Annual or 

 perennial (W. Indian, Mexican, and Texan) herbs; with alternate or oppo- 

 site leaves, and small heads with yellow rays. 



Vigiiiera prostrata, DC. is not a North American plant; and is perhaps different 

 from Heliantlius prostratus, Wdld. 



